const Project = require('../models/Project')
const {body, validationResult} = require('express-validator')
const jimp = require('jimp')
const fs = require('fs')
const dateFormat = require('dateformat')
const v_m = require('../validation_messages')

///////////////////////////////////////// create project
module.exports.create = [
  [
    body('fa_name')
       .notEmpty().withMessage(v_m['fa'].required.title)
       .bail()
       .custom((value, {req}) => {
         return Project.findOne({'project_details.fa.name': value})
            .then(project => {
              if (project) return Promise.reject(v_m['fa'].duplicated.name)
              else return true
            })
       }),

    body('en_name')
       .notEmpty().withMessage(v_m['fa'].required.title)
       .bail()
       .custom((value, {req}) => {
         return Project.findOne({'project_details.en.name': value})
            .then(project => {
              if (project) return Promise.reject(v_m['fa'].duplicated.name)
              else return true
            })
       }),

    body('date')
       .notEmpty().withMessage(v_m['fa'].required.date),
  ],
  (req, res) => {
    const errors = validationResult(req)
    if (!errors.isEmpty()) return res.status(422).json({validation: errors.mapped()})

    const data = {
      date: req.body.date,
      project_details: {
        fa: {
          name: req.body.fa_name,
          description: req.body.fa_description,
        },
        en: {
          name: req.body.en_name,
          description: req.body.en_description,
        }
      },
      created_at: dateFormat(Date.now(), 'yyyy-mm-dd HH:MM:ss')
    }

    const project = new Project(data)
    project.save((err, project) => {
      if (err) console.log(err)
      return res.json(project)
    })
  }
]

///////////////////////////////////////// get all projects
module.exports.getAll = [
  (req, res) => {
    Project.find({}, (err, projects) => {
      if (err) return res.json({errors: err})
      return res.json(projects)
    })
  }
]

///////////////////////////////////////// get one project
module.exports.getOne = [
  (req, res) => {
    Project.findById(req.params.id, (err, project) => {
      if (err) return res.status(404).json({errors: err})
      return res.json(project)
    })
  }
]

///////////////////////////////////////// update one project
module.exports.update = [
  [
    body('fa_name')
       .notEmpty().withMessage(v_m['fa'].required.title)
       .bail()
       .custom((value, {req}) => {
         return Project.findOne({'project_details.fa.name': value})
            .then(project => {
              if (project && project._id.toString() !== req.params.id) return Promise.reject(v_m['fa'].duplicated.name)
              else return true
            })
       }),

    body('en_name')
       .notEmpty().withMessage(v_m['fa'].required.title)
       .bail()
       .custom((value, {req}) => {
         return Project.findOne({'project_details.en.name': value})
            .then(project => {
              if (project && project._id.toString() !== req.params.id) return Promise.reject(v_m['fa'].duplicated.name)
              else return true
            })
       }),

    body('date')
       .notEmpty().withMessage(v_m['fa'].required.date),
  ],
  (req, res) => {
    const errors = validationResult(req)
    if (!errors.isEmpty()) return res.status(422).json({validation: errors.mapped()})

    const data = {
      date: req.body.date,
      project_details: {
        fa: {
          name: req.body.fa_name,
          description: req.body.fa_description,
        },
        en: {
          name: req.body.en_name,
          description: req.body.en_description,
        }
      },
      updated_at: dateFormat(Date.now(), 'yyyy-mm-dd HH:MM:ss')
    }

    Project.findByIdAndUpdate(req.params.id, data, (err, oldData) => {
      if (err) return res.status(404).json({message: err})
      return res.json({message: v_m['fa'].response.success_save})
    })
  }
]

///////////////////////////////////////// delete project
module.exports.delete = [
  (req, res) => {
    Project.findByIdAndRemove(req.params.id, (err, data) => {
      if (err) return res.status(404).json({message: err})
      data.images.forEach(async item => {
        try {
          await fs.unlink(`./static/${item.image}`, err => {
            if (err) console.log(err)
          })
        } catch (e) {
          console.log(e)
        }
      })
      return res.json({message: v_m['fa'].response.success_remove})
    })
  }
]

////////////////////////////////////////////////////////////////////////////////////////

/////////////////////////////// add images to project
module.exports.addImage = [
  (req, res) => {
    Project.findById(req.params.id)
       .then(project => {
         if (!req.files || !req.files.image) return res.status(422).json({validation: {image: {msg: v_m['fa'].required.image}}})

         let fileName = 'project_' + Date.now() + '.' + req.files.image.mimetype.split('/')[1]
         jimp.read(req.files.image.data)
            .then(img => {
              img
                 .cover(1010, 534)
                 .quality(80)
                 .write(`./static/uploads/images/projects/${fileName}`)

              ////
              const data = {
                image: fileName,
                created_at: dateFormat(Date.now(), 'yyyy-mm-dd HH:MM:ss')
              }
              project.images.push(data)
              project.save(cb => {
                return res.json(project)
              })
            })
            .catch(err => {
              console.log(err)
            })
       })
  }
]

module.exports.deleteImage = [
  (req, res) => {
    Project.findOne({'images._id': req.params.id}, (err, project) => {
      if (err) console.log(err)
      if (project) {
        let image = project.images.id(req.params.id)
        fs.unlink(`./static/${image.image}`, err => {
          if (err) console.log(err)
          image.remove()
          project.save(cb => {
            return res.json({message: v_m['fa'].response.success_remove})
          })
        })
      }
    })
  }
]