const express = require('express')
const { Op } = require("sequelize")
const idGenerator = require('mantra-db-models/src/lib/id-generator');
const markdownProducer = require("../../../lib/markdown-producer")

module.exports = function (options) {
    const db = options.db;
    var router = express.Router();

    router.route('/:id')
        .get(function(request, response, next) {
            db.TranslationArtifactVersion.findByPk(request.params.id, {
                include: [
                    {
                        association: db.TranslationArtifactVersion.ArtifactVersion,
                        include: [
                            {
                                association: db.ArtifactVersion.Artifact,
                                include: [
                                    {
                                        association: db.Artifact.Owner,
                                        // required: false,
                                        include: [
                                            {
                                                association: db.Owner.OwnerEntities,
                                                // required: true,
                                                include: [
                                                    {
                                                        association: db.OwnerEntity.Entity,
                                                        // required: false,
                                                        include: [
                                                            {
                                                                association: db.Entity.EntityUsers,
                                                                required: false,
                                                                where: {
                                                                    userId: request.user?.id ?? null
                                                                }
                                                            }
                                                        ]
                                                    }
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                association: db.ArtifactVersion.Chapters
                            }
                        ]
                    },
                    {
                        association: db.TranslationArtifactVersion.ForkedFrom
                    },
                    {
                        association: db.TranslationArtifactVersion.TranslationChapters,
                        include: [
                            {
                                association: db.TranslationChapter.Chapter
                            }
                        ]
                    },
                    {
                        association: db.TranslationArtifactVersion.Owner,
                        // required: false,
                        include: [
                            {
                                association: db.Owner.OwnerEntities,
                                // required: true,
                                include: [
                                    {
                                        association: db.OwnerEntity.Entity,
                                        // required: false,
                                        include: [
                                            {
                                                association: db.Entity.EntityUsers,
                                                required: false,
                                                where: {
                                                    userId: request.user?.id ?? null
                                                }
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        association: db.TranslationArtifactVersion.TranslationArtifactVersionEditor,
                    }
                ]
            }).then(translationArtifactVersion => {
                if (translationArtifactVersion) {
                    response.display("translation-artifact-version", {
                        user: request.user,
                        pageTitle: "Translation Artifact - Mantra",
                        translationArtifactVersion: translationArtifactVersion,
                    })
                } else {
                    next()
                }
            }).catch(error => {
                next(error)
            })
        })

    router.route('/:id/chapter/:chapterId')
        .get(function(request, response, next) {
            db.TranslationChapter.findByPk(request.params.chapterId, {
                include: [
                    {
                        association: db.TranslationChapter.Chapter,
                    },
                    {
                        association: db.TranslationChapter.TranslationChapterTranslators,
                        include: [
                            {
                                association: db.TranslationChapterTranslator.Translator,
                                include: [
                                    {
                                        association: db.Entity.EntityEmail,
                                        include: [
                                            {
                                                association: db.EntityEmail.Email
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        association: db.TranslationChapter.TranslationChapterProofReaders,
                    },
                    {
                        association: db.TranslationChapter.TranslationChunks,
                        include: [
                            {
                                association: db.TranslationChunk.Translation
                            }
                        ]
                    },
                    {
                        association: db.TranslationChapter.TranslationArtifactVersion,
                        include: [
                            {
                                association: db.TranslationArtifactVersion.ArtifactVersion,
                                include: [
                                    {
                                        association: db.ArtifactVersion.Artifact,
                                        include: [
                                            {
                                                association: db.Artifact.Dialect
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                association: db.TranslationArtifactVersion.Dialect
                            },
                            {
                                association: db.TranslationArtifactVersion.BackTranslationFrom
                            },
                            {
                                association: db.TranslationArtifactVersion.TranslationArtifactVersionEditor,
                            }
                        ]
                    }
                ]
            }).then(translationChapter => {
                if (translationChapter) {
                    response.display("translate-chapter", {
                        user: request.user,
                        pageTitle: `Translate Chapter ${translationChapter.name}`,
                        translationChapter: translationChapter 
                    })
                } else {
                    next()
                }
            }).catch(error => {
                next(error)
            })
        })

    router.route('/:id/chapter/:chapterId/view')
        .get(function(request, response, next) {
            db.TranslationChapter.findByPk(request.params.chapterId, {
                include: [
                    {
                        association: db.TranslationChapter.Chapter,
                        required: true
                    },
                    {
                        association: db.TranslationChapter.TranslationChunks,
                        include: [
                            {
                                association: db.TranslationChunk.Translation
                            }
                        ]
                    },
                    {
                        association: db.TranslationChapter.TranslationArtifactVersion,
                        include: [
                            {
                                association: db.TranslationArtifactVersion.ArtifactVersion,
                                include: [
                                    {
                                        association: db.ArtifactVersion.Artifact,
                                        include: [
                                            {
                                                association: db.Artifact.Dialect
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            }).then(translationChapter => {
                if (translationChapter) {

                    response.display("translate-chapter-view", {
                        user: request.user,
                        pageTitle: `Translate Chapter ${translationChapter.name}`,
                        translatedChapterOutput: markdownProducer.produceHtml(translationChapter),
                        translationChapter: translationChapter 
                    })
                } else {
                    next()
                }
            }).catch(error => {
                next(error)
            })
        })
    
    router.route('/:id/chapter/:chapterId/html')
        .get(function(request, response, next) {
            db.TranslationChapter.findByPk(request.params.chapterId, {
                include: [
                    {
                        association: db.TranslationChapter.Chapter,
                        required: true
                    },
                    {
                        association: db.TranslationChapter.TranslationChunks,
                        include: [
                            {
                                association: db.TranslationChunk.Translation
                            }
                        ]
                    },
                    {
                        association: db.TranslationChapter.TranslationArtifactVersion,
                        include: [
                            {
                                association: db.TranslationArtifactVersion.ArtifactVersion,
                                include: [
                                    {
                                        association: db.ArtifactVersion.Artifact,
                                        include: [
                                            {
                                                association: db.Artifact.Dialect
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            }).then(translationChapter => {
                if (translationChapter) {
                    response.contentType = "text/plain"
                    response.send(markdownProducer.produceHtml(translationChapter))
                } else {
                    next()
                }
            }).catch(error => {
                next(error)
            })
        })

    router.route('/:id/chapter/:chapterId/markdown')
        .get(function(request, response, next) {
            db.TranslationChapter.findByPk(request.params.chapterId, {
                include: [
                    {
                        association: db.TranslationChapter.Chapter,
                        required: true
                    },
                    {
                        association: db.TranslationChapter.TranslationChunks,
                        include: [
                            {
                                association: db.TranslationChunk.Translation
                            }
                        ]
                    },
                    {
                        association: db.TranslationChapter.TranslationArtifactVersion,
                        include: [
                            {
                                association: db.TranslationArtifactVersion.ArtifactVersion,
                                include: [
                                    {
                                        association: db.ArtifactVersion.Artifact,
                                        include: [
                                            {
                                                association: db.Artifact.Dialect
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            }).then(translationChapter => {
                if (translationChapter) {
                    response.contentType = "text/plain"
                    response.send(markdownProducer.produceMarkdownString(tokens))
                } else {
                    next()
                }
            }).catch(error => {
                next(error)
            })
        })

    router.route('/:id/chapter/:chapterId/t/:chunkIndex')
        .get(function(request, response, next) {
            const previousIndex = Number(request.params.chunkIndex)-1
            const nextIndex = Number(request.params.chunkIndex)+1
            db.TranslationChunk.findAll({
                where: {
                    translationChapterId: request.params.chapterId,
                    index: {
                        [Op.between]: [
                            previousIndex, 
                            nextIndex
                        ],
                    }
                },
                limit: 3,
                include: [
                    {
                        association: db.TranslationChunk.Translation
                    },
                    {
                        association: db.TranslationChunk.TranslationChapter,
                        required: true,
                        include: [
                            {
                                association: db.TranslationChapter.TranslationArtifactVersion,
                                required: true,
                                include: [
                                    {
                                        association: db.TranslationArtifactVersion.ArtifactVersion,
                                        include: [
                                            {
                                                association: db.ArtifactVersion.Artifact,
                                                include: [
                                                    {
                                                        association: db.Artifact.Dialect
                                                    }
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            }).then(translationChunks => {
                if (translationChunks.length > 0) {
                    const translationChunk = translationChunks.find(translationChunk => translationChunk.index == Number(request.params.chunkIndex))
                    if (translationChunk) {
                        response.display("translate-chunk", {
                            user: request.user,
                            pageTitle: `Translate ${translationChunk.translationChapter.translationArtifactVersion.artifactVersion.artifact.name}`,
                            translationChunk: translationChunk,
                            previousTranslationChunk: translationChunks.find(translationChunk => translationChunk.index == previousIndex),
                            nextTranslationChunk: translationChunks.find(translationChunk => translationChunk.index == nextIndex)
                        })
                    } else {
                        response.redirect(`/translate/${request.params.id}/chapter/${request.params.chapterId}`)
                    }
                    
                } else {
                    next()
                }
            }).catch(error => {
                next(error)
            })
        })
        .post(function(request, response, next) {
            db.TranslationChunk.findOne({
                where: {
                    translationChapterId: request.params.chapterId,
                    index: request.params.chunkIndex
                },
                include: [
                    {
                        association: db.TranslationChunk.Translation
                    },
                    {
                        association: db.TranslationChunk.TranslationChapter,
                        required: true,
                        include: [
                            {
                                association: db.TranslationChapter.TranslationArtifactVersion,

                                include: [
                                    {
                                        association: db.TranslationArtifactVersion.ArtifactVersion,
                                        include: [
                                            {
                                                association: db.ArtifactVersion.Artifact,
                                                include: [
                                                    {
                                                        association: db.Artifact.Dialect
                                                    }
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            }).then(async (translationChunk) => {
                if (translationChunk) {
                    if (translationChunk.translation) {
                        translationChunk.translation.text = request.body.translatedText
                        await translationChunk.translation.save()
                    } else {
                        translation = await db.Translation.create({
                            creatorId: request.user.id,
                            translationChunkId: translationChunk.id,
                            text: request.body.translatedText,
                            translationArtifactVersionId: request.params.id
                        })
                    }
                    response.redirect(`/translate/${request.params.id}/chapter/${request.params.chapterId}/t/${Number(request.params.chunkIndex)+1}`)
                } else {
                    next()
                }
            }).catch(error => {
                next(error)
            })
        })

    router.route('/:id/back')
        .post(function(request, response, next) {
            db.TranslationArtifactVersion.findByPk(request.params.id, {
                include: [
                    {
                        association: db.TranslationArtifactVersion.Dialect,
                    },
                    {
                        association: db.TranslationArtifactVersion.TranslationChapters,
                        include: [
                            {
                                association: db.TranslationChapter.TranslationChunks,
                                include: [
                                    {
                                        association: db.TranslationChunk.Translation,
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        association: db.TranslationArtifactVersion.ArtifactVersion,
                        include: [
                            {
                                association: db.ArtifactVersion.Artifact,
                                include: [
                                    {
                                        association: db.Artifact.Dialect
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        association: db.TranslationArtifactVersion.BackTranslation,
                    },
                    {
                        association: db.TranslationArtifactVersion.Owner,
                        required: true,
                        include: [
                            {
                                association: db.Owner.OwnerEntities,
                                required: true,
                                include: [
                                    {
                                        association: db.OwnerEntity.Entity,
                                        required: true,
                                        include: [
                                            {
                                                association: db.Entity.EntityUsers,
                                                required: true,
                                                where: {
                                                    userId: request.user?.id ?? null
                                                }
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            }).then((translationArtifactVersion) => {
                if (translationArtifactVersion) {
                    if (translationArtifactVersion.backTranslation) {
                        // translationArtifactVersion has a back translation...xx§
                        return translationArtifactVersion.backTranslation
                    } else {
                        return db.TranslationArtifactVersion.create({
                            creatorId: request.user.id,
                            name: translationArtifactVersion.artifactVersion.artifact.dialect.name,
                            artifactVersionId: translationArtifactVersion.artifactVersionId,
                            dialectId:  translationArtifactVersion.dialect.id,
                            visibility: translationArtifactVersion.visibility,
                            backTranslationFromId: translationArtifactVersion.id,
                            owner: {
                                ownerEntities: [
                                    {
                                        entityId: request.user.individualEntityUser.entityUser.entityId,
                                    }
                                ]
                            },
                            translationChapters: translationArtifactVersion.translationChapters.map(translationChapter => {
                                return {
                                    creatorId: request.user.id,
                                    chapterId: translationChapter.chapterId,
                                    index: translationChapter.index,
                                    translationChunks: translationChapter.translationChunks.map(translationChunk => {
                                        return {
                                            creatorId: request.user.id,
                                            chunkId: translationChunk.chunkId,
                                            text: translationChunk.translation.text,
                                            index: translationChunk.index
                                        }
                                    })
                                }
                            })
                        }, {
                            include: [
                                {
                                    association: db.TranslationArtifactVersion.TranslationChapters,
                                    include: [
                                        {
                                            association: db.TranslationChapter.TranslationChunks
                                        }
                                    ]
                                },
                                {
                                    association: db.TranslationArtifactVersionCampaign.Owner,
                                    include: [
                                        {
                                            association: db.Owner.OwnerEntities
                                        }
                                    ]
                                }
                            ]
                        })
                    }
                } else {
                    return null
                }
            }).then(translationArtifactVersion => {
                if (translationArtifactVersion) {
                    response.redirect(`/translate/${translationArtifactVersion.id}`)
                } else {
                    next()
                }
            }).catch(error => {
                next(error)
            })
        })

    router.route('/:id/campaigns')
        .get(function(request, response, next) {
            db.TranslationArtifactVersion.findByPk(request.params.id, {
                include: [
                    {
                        association: db.TranslationArtifactVersion.TranslationArtifactVersionCampaigns,
                        include: [
                            {
                                association: db.TranslationArtifactVersionCampaign.Campaign,
                            }
                        ]
                    },
                    {
                        association: db.TranslationArtifactVersion.Owner,
                        required: true,
                        include: [
                            {
                                association: db.Owner.OwnerEntities,
                                required: true,
                                include: [
                                    {
                                        association: db.OwnerEntity.Entity,
                                        required: true,
                                        include: [
                                            {
                                                association: db.Entity.EntityUsers,
                                                required: true,
                                                where: {
                                                    userId: request.user?.id ?? null
                                                }
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            }).then(translationArtifactVersion => {
                if (translationArtifactVersion) {
                    if (translationArtifactVersion.translationArtifactVersionCampaigns.length == 0) {
                        response.redirect(`/translate/${request.params.id}/campaigns/create`)
                    } else if (translationArtifactVersion.translationArtifactVersionCampaigns.length == 1) {
                        response.redirect(`/campaigns/${translationArtifactVersion.translationArtifactVersionCampaigns[0].campaignId}`)
                    } else {
                        // TODO: Display translation artifact campaign...
                        next()
                    }
                } else {
                    next()
                }
            })
        })

    router.route('/:id/campaigns/create')
        .get(function(request, response, next) {
            db.TranslationArtifactVersion.findByPk(request.params.id, {
                include: [
                    {
                        association: db.TranslationArtifactVersion.ArtifactVersion,
                        include: [
                            {
                                association: db.ArtifactVersion.Artifact
                            }
                        ]
                    },
                    {
                        association: db.TranslationArtifactVersion.TranslationArtifactVersionCampaigns,
                        include: [
                            {
                                association: db.TranslationArtifactVersionCampaign.Campaign,
                            }
                        ]
                    },
                    {
                        association: db.TranslationArtifactVersion.Owner,
                        required: true,
                        include: [
                            {
                                association: db.Owner.OwnerEntities,
                                required: true,
                                include: [
                                    {
                                        association: db.OwnerEntity.Entity,
                                        required: true,
                                        include: [
                                            {
                                                association: db.Entity.EntityUsers,
                                                required: true,
                                                where: {
                                                    userId: request.user?.id ?? nulls
                                                }
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            }).then(translationArtifactVersion => {
                if (translationArtifactVersion) {
                    // TODO: Check if campaign exits...
                    response.display("campaign-form", {
                        user: request.user,
                        pageTitle: "Campaign - Mantra",
                        campaign: {
                            name: `Campaign for ${translationArtifactVersion.name} translation of ${translationArtifactVersion.artifactVersion.artifact.name}`
                        },
                        translationArtifactVersions: [translationArtifactVersion]
                    })
                } else {
                    next()
                }
            }).catch(error => {
                next(error)
            })
        })
        .post(function(request, response, next) {
            db.TranslationArtifactVersion.findByPk(request.params.id, {
                include: [
                    {
                        association: db.TranslationArtifactVersion.ArtifactVersion,
                        include: [
                            {
                                association: db.ArtifactVersion.Artifact
                            }
                        ]
                    },
                    {
                        association: db.TranslationArtifactVersion.TranslationArtifactVersionCampaigns,
                        include: [
                            {
                                association: db.TranslationArtifactVersionCampaign.Campaign,
                            }
                        ]
                    },
                    {
                        association: db.TranslationArtifactVersion.Owner,
                        required: true,
                        include: [
                            {
                                association: db.Owner.OwnerEntities,
                                required: true,
                                include: [
                                    {
                                        association: db.OwnerEntity.Entity,
                                        required: true,
                                        include: [
                                            {
                                                association: db.Entity.EntityUsers,
                                                required: true,
                                                where: {
                                                    userId: request.user?.id ?? null
                                                }
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            }).then(async (translationArtifactVersion) => {
                if (translationArtifactVersion) {
                    // TODO: Create campaign...
                    const campaign = await db.Campaign.create({
                        creatorId: request.user.id,
                        name: request.body.name,
                        description: request.body.description,
                        // defaultSatoshis: [request.body.satoshis].flat()[0],
                        defaultSatoshis: request.body.satoshis,
                        owner: {
                            ownerEntities: [
                                {
                                    entityId: request.user.individualEntityUser.entityUser.entityId,
                                }
                            ]
                        },
                        translationArtifactVersionCampaigns: [
                            {
                                creatorId: request.user.id,
                                translationArtifactVersionId: translationArtifactVersion.id,
                                owner: {
                                    ownerEntities: [
                                        {
                                            entityId: request.user.individualEntityUser.entityUser.entityId,
                                        }
                                    ]
                                },
                                satoshis: request.body.satoshis
                            }
                        ]
                    }, {
                        include: [
                            {
                                association: db.Campaign.TranslationArtifactVersionCampaigns,
                                include: [
                                    {
                                        association: db.TranslationArtifactVersionCampaign.Owner,
                                        include: [
                                            {
                                                association: db.Owner.OwnerEntities
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                association: db.Campaign.Owner,
                                include: [
                                    {
                                        association: db.Owner.OwnerEntities
                                    }
                                ]
                            }
                        ]
                    })

                    response.redirect(`/campaigns/${campaign.id}`)
                } else {
                    next()
                }
            }).catch(error => {
                next(error)
            })
        })

    router.route('/:id/pledges')
        .get(function(request, response, next) {
            db.TranslationArtifactVersion.findByPk(request.params.id, {
                include: [
                    {
                        association: db.TranslationArtifactVersion.TranslationArtifactVersionPledges,
                        required: true,
                        include: [
                            {
                                association: db.TranslationArtifactVersionPledge.Pledge,
                                required: true
                            }
                        ]
                    }
                ]
            }).then(translationArtifactVersion => {
                if (translationArtifactVersion) {
                    if (translationArtifactVersion.translationArtifactVersionPledges.length == 1) {
                        response.redirect(`/pledges/${translationArtifactVersion.translationArtifactVersionPledges[0].campaignId}`)
                    } else {
                        // TODO: Display translation artifact campaign...
                        next()
                    }
                } else {
                    response.redirect(`/translate/${request.params.id}/pledges/create`)
                }
            })
        })

    router.route('/:id/pledges/create')
        .get(function(request, response, next) {
            db.TranslationArtifactVersion.findByPk(request.params.id, {
                include: [
                    {
                        association: db.TranslationArtifactVersion.ArtifactVersion,
                        include: [
                            {
                                association: db.ArtifactVersion.Artifact
                            }
                        ]
                    },
                    {
                        association: db.TranslationArtifactVersion.TranslationArtifactVersionPledges,
                        required: false,
                        include: [
                            {
                                association: db.TranslationArtifactVersionPledge.Pledge,
                                required: false
                            }
                        ]
                    }
                ]
            }).then(translationArtifactVersion => {
                if (translationArtifactVersion) {
                    response.display("pledge-form", {
                        user: request.user,
                        pageTitle: "Pledge - Mantra",
                        campaign: {
                            name: `Pledge for ${translationArtifactVersion.name} translation of ${translationArtifactVersion.artifactVersion.artifact.name}`,
                        },
                        translationArtifactVersions: [translationArtifactVersion]
                    })
                } else {
                    next()
                }
            }).catch(error => {
                next(error)
            })
        })
        .post(function(request, response, next) {
            db.TranslationArtifactVersion.findByPk(request.params.id, {
                include: [
                    {
                        association: db.TranslationArtifactVersion.ArtifactVersion,
                        include: [
                            {
                                association: db.ArtifactVersion.Artifact
                            }
                        ]
                    },
                    {
                        association: db.TranslationArtifactVersion.TranslationArtifactVersionPledges,
                        required: false,
                        include: [
                            {
                                association: db.TranslationArtifactVersionPledge.Pledge,
                                required: false
                            }
                        ]
                    }
                ]
            }).then(async (translationArtifactVersion) => {
                if (translationArtifactVersion) {
                    // TODO: Create campaign...
                    const pledge = await db.Pledge.create({
                        creatorId: request.user.id,
                        message: request.body.message,
                        owner: {
                            ownerEntities: [
                                {
                                    entityId: request.user.individualEntityUser.entityUser.entityId
                                }
                            ]
                        },
                        translationArtifactVersionPledges: [
                            {
                                creatorId: request.user.id,
                                translationArtifactVersionId: translationArtifactVersion.id,
                                owner: {
                                    ownerEntities: [
                                        {
                                            entityId: request.user.individualEntityUser.entityUser.entityId,
                                        }
                                    ]
                                },
                                satoshis: request.body.satoshis
                            }
                        ]
                    }, {
                        include: [
                            {
                                association: db.Pledge.TranslationArtifactVersionPledges,
                                include: [
                                    {
                                        association: db.TranslationArtifactVersionPledge.Owner,
                                        include: [
                                            {
                                                association: db.Owner.OwnerEntities
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                association: db.Pledge.Owner,
                                include: [
                                    {
                                        association: db.Owner.OwnerEntities
                                    }
                                ]
                            }
                        ]
                    })

                    response.redirect(`/pledges/${pledge.id}`)
                } else {
                    next()
                }
            }).catch(error => {
                next(error)
            })
        })

    router.route('/:id/chapter/:chapterId/translator')
        .get(function(request, response, next) {
            db.TranslationChapter.findByPk(request.params.chapterId, {
                include: [
                    {
                        association: db.TranslationChapter.Chapter,
                    },
                    {
                        association: db.TranslationChapter.TranslationChapterTranslators,
                        include: [
                            {
                                association: db.TranslationChapterTranslator.Translator,
                                include: [
                                    {
                                        association: db.Entity.EntityEmail,
                                        include: [
                                            {
                                                association: db.EntityEmail.Email
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        association: db.TranslationChapter.TranslationChapterProofReaders,
                    },
                    {
                        association: db.TranslationChapter.TranslationChunks,
                        include: [
                            {
                                association: db.TranslationChunk.Translation
                            }
                        ]
                    },
                    {
                        association: db.TranslationChapter.TranslationArtifactVersion,
                        include: [
                            {
                                association: db.TranslationArtifactVersion.ArtifactVersion,
                                include: [
                                    {
                                        association: db.ArtifactVersion.Artifact,
                                        include: [
                                            {
                                                association: db.Artifact.Dialect
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                association: db.TranslationArtifactVersion.Dialect
                            },
                            {
                                association: db.TranslationArtifactVersion.BackTranslationFrom
                            },
                            {
                                association: db.TranslationArtifactVersion.TranslationArtifactVersionEditor,
                            }
                        ]
                    }
                ]
            }).then(translationChapter => {
                if (translationChapter) {
                    response.display("translate-chapter-translator-form", {
                        user: request.user,
                        pageTitle: `Translate Chapter ${translationChapter.name}`,
                        translationChapter: translationChapter 
                    })
                } else {
                    next()
                }
            }).catch(error => {
                next(error)
            })
        })
        .post(function(request, response, next) {
            db.TranslationChapter.findByPk(request.params.chapterId, {
                include: [
                    {
                        association: db.TranslationChapter.Chapter,
                    },
                    {
                        association: db.TranslationChapter.TranslationChapterTranslators,
                    },
                    {
                        association: db.TranslationChapter.TranslationChapterProofReaders,
                    },
                    {
                        association: db.TranslationChapter.TranslationChunks,
                        include: [
                            {
                                association: db.TranslationChunk.Translation
                            }
                        ]
                    },
                    {
                        association: db.TranslationChapter.TranslationArtifactVersion,
                        include: [
                            {
                                association: db.TranslationArtifactVersion.ArtifactVersion,
                                include: [
                                    {
                                        association: db.ArtifactVersion.Artifact,
                                        include: [
                                            {
                                                association: db.Artifact.Dialect
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                association: db.TranslationArtifactVersion.Dialect
                            },
                            {
                                association: db.TranslationArtifactVersion.BackTranslationFrom
                            },
                            {
                                association: db.TranslationArtifactVersion.TranslationArtifactVersionEditor,
                            }
                        ]
                    }
                ]
            }).then(async (translationChapter) => {
                if (translationChapter) {
                    // TODO: Check if translationChapter has a TranslationChapterTranslator with this email...
                    // TODO: FindOrCreate Email
                    const [email, created] = await db.Email.findOrCreate({
                        where: {
                            address: request.body.translator
                        },
                        include: [
                            {
                                association: db.Email.EntityEmails,
                                required: false,
                                where: {
                                    creatorId: request.user.id
                                }
                            },
                            {
                                association: db.Email.UserEmail,
                                include: [
                                    {
                                        association: db.UserEmail.User,
                                        include: [
                                            {
                                                association: db.User.IndividualEntityUser,
                                                include: [
                                                    {
                                                        association: db.IndividualEntityUser.EntityUser
                                                    }
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ],
                        defaults: {
                            address: request.body.translator
                        }
                    })
                    if (email.userEmail) {
                        // if email has user associated with it tie that users individual entity to a new TranslationChapterTranslator object
                        await db.TranslationChapterTranslator.create({
                            translationChapterId: translationChapter.id,
                            creatorId: request.user.id,
                            translatorId: email.userEmail.user.individualEntityUser.entityUser.entityId
                        })
                    } else if (email.entityEmails?.length > 0) {
                        // TODO: If email has an EntityEmail (which has this user as a creator) tie that entityEmail to a new TranslationChapterTranslator
                        await db.TranslationChapterTranslator.create({
                            translationChapterId: translationChapter.id,
                            creatorId: request.user.id,
                            translatorId: email.entityEmails[0].entityId
                        })
                    } else {
                        // if email doesn't have a user/entityEmail associated with it (newly created) create an EntityEmail and tie it to a new TranslationChapterTranslator object
                        await db.TranslationChapterTranslator.create({
                            translationChapterId: translationChapter.id,
                            creatorId: request.user.id,
                            translator: {
                                name: idGenerator.generateRandomAlphanumeric(),
                                type: "individual",
                                entityEmail: {
                                    creatorId: request.user.id,
                                    emailAddress: email.address,
                                    type: 'translator'
                                }
                            }
                        }, {
                            include: [
                                {
                                    association: db.TranslationChapterTranslator.Translator,
                                    include: [
                                        {
                                            association: db.Entity.EntityEmail
                                        }
                                    ]
                                }
                            ]
                        })
                    }
                    
                    response.redirect(`/translate/${translationChapter.translationArtifactVersion.id}/chapter/${translationChapter.id}`)
                } else {
                    next()
                }
            }).catch(error => {
                next(error)
            })
        })

    router.route('/:id/chapter/:chapterId/translator/:translatorId')
        .get(function(request, response, next) {
            db.TranslationChapterTranslator.findByPk(request.params.translatorId, {
                include: [
                    {
                        association: db.TranslationChapterTranslator.TranslationChapter,
                        required: true,
                        include: [
                            {
                                association: db.TranslationChapter.TranslationArtifactVersion,
                                required: true,
                                include: [
                                    {
                                        association: db.TranslationArtifactVersion.ArtifactVersion,
                                        required: true,
                                        include: [
                                            {
                                                association: db.ArtifactVersion.Artifact,
                                                required: true,
                                                include: [
                                                    {
                                                        association: db.Artifact.Dialect
                                                    },
                                                    {
                                                        association: db.Artifact.Owner,
                                                        required: true,
                                                        include: [
                                                            {
                                                                association: db.Owner.OwnerEntities,
                                                                required: true,
                                                                include: [
                                                                    {
                                                                        association: db.OwnerEntity.Entity,
                                                                        required: true,
                                                                        include: [
                                                                            {
                                                                                association: db.Entity.EntityUsers,
                                                                                required: true,
                                                                                where: {
                                                                                    userId: request.user?.id ?? null
                                                                                }
                                                                            }
                                                                        ]
                                                                    }
                                                                ]
                                                            }
                                                        ]
                                                    }
                                                ]
                                            }
                                        ]
                                    },
                                    {
                                        association: db.TranslationArtifactVersion.Dialect
                                    },
                                    {
                                        association: db.TranslationArtifactVersion.BackTranslationFrom
                                    },
                                    {
                                        association: db.TranslationArtifactVersion.TranslationArtifactVersionEditor,
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        association: db.TranslationChapterTranslator.Translator,
                        include: [
                            {
                                association: db.Entity.EntityEmail,
                                include: [
                                    {
                                        association: db.EntityEmail.Email
                                    }
                                ]
                            }
                        ]
                    }
                ]
            }).then(translationChapterTranslator => {
                if (translationChapterTranslator) {
                    response.display("translate-chapter-translator-remove", {
                        user: request.user,
                        pageTitle: `Translator ${translationChapterTranslator.name}`,
                        translationChapterTranslator: translationChapterTranslator 
                    })
                } else {
                    next()
                }
            }).catch(error => {
                next(error)
            })
        })
        .post(function(request, response, next) {
            db.TranslationChapterTranslator.findByPk(request.params.translatorId, {
                include: [
                    {
                        association: db.TranslationChapterTranslator.TranslationChapter,
                        required: true,
                        include: [
                            {
                                association: db.TranslationChapter.TranslationArtifactVersion,
                                required: true,
                                include: [
                                    {
                                        association: db.TranslationArtifactVersion.ArtifactVersion,
                                        required: true,
                                        include: [
                                            {
                                                association: db.ArtifactVersion.Artifact,
                                                required: true,
                                                include: [
                                                    {
                                                        association: db.Artifact.Dialect
                                                    },
                                                    {
                                                        association: db.Artifact.Owner,
                                                        required: true,
                                                        include: [
                                                            {
                                                                association: db.Owner.OwnerEntities,
                                                                required: true,
                                                                include: [
                                                                    {
                                                                        association: db.OwnerEntity.Entity,
                                                                        required: true,
                                                                        include: [
                                                                            {
                                                                                association: db.Entity.EntityUsers,
                                                                                required: true,
                                                                                where: {
                                                                                    userId: request.user?.id ?? null
                                                                                }
                                                                            }
                                                                        ]
                                                                    }
                                                                ]
                                                            }
                                                        ]
                                                    }
                                                ]
                                            }
                                        ]
                                    },
                                    {
                                        association: db.TranslationArtifactVersion.Dialect
                                    },
                                    {
                                        association: db.TranslationArtifactVersion.BackTranslationFrom
                                    },
                                    {
                                        association: db.TranslationArtifactVersion.TranslationArtifactVersionEditor,
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        association: db.TranslationChapterTranslator.Translator,
                        include: [
                            {
                                association: db.Entity.EntityEmail,
                                include: [
                                    {
                                        association: db.EntityEmail.Email
                                    }
                                ]
                            }
                        ]
                    }
                ]
            }).then(async (translationChapterTranslator) => {
                if (translationChapterTranslator) {
                    await translationChapterTranslator.destroy()
                    response.redirect(`/translate/${translationChapterTranslator.translationChapter.translationArtifactVersion.id}/chapter/${translationChapterTranslator.translationChapter.id}`)
                } else {
                    next()
                }
            }).catch(error => {
                next(error)
            })
        })

    return router;
};