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path: root/client/reducers/folders.js
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// import { addTask } from '../actions'
import client from '../client'

const folders = (state = {}, action) => {
  let file, files, folders, folder, openFolders, folder_id, filesAreLoaded
  switch (action.type) {
    case 'LOAD_FOLDERS':
      return {
        ...state,
        folders: action.folders,
      }
    
    case 'LOAD_FILES':
      if (! action.files.length) {
        return state
      }
      folder_id = action.files[0].folder_id
      folders = state.folders.map( (folder) => {
        if (folder.id === folder_id) {
          folder.files = action.files
        }
        return folder
      })
      return {
        ...state,
        folders
      }
    
    case 'ADD_FOLDER':
      folders = [ action.folder ].concat(state.folders)
      return {
        ...state,
        folders
      }
    
    case 'LOAD_OPEN_FOLDERS':
      return {
        ...state,
        openFolders: action.folders,
      }

    case 'OPEN_FOLDER':
      openFolders = state.openFolders
      folder = action.folder
      folder_id = folder.id
      if (openFolders.indexOf(folder.id) === -1) {
        openFolders = [folder.id].concat(openFolders || [])
        localStorage['openFolders'] = JSON.stringify(openFolders)
      }
      filesAreLoaded = state.folders.some( (folder) => {
        if (folder.id === folder_id && folder.files) {
          return true
        }
        return false
      })
      if (! filesAreLoaded) {
        client.file.index({ folder_id }).then( (files) => {
          action.cb && action.cb(files)
        })
      }
      return {
        ...state,
        openFolders,
      }
    
    case 'CLOSE_FOLDER':
      folder = action.folder
      openFolders = state.openFolders.filter( folder_id => folder_id !== folder.id )
      localStorage['openFolders'] = JSON.stringify(openFolders)

      return {
        ...state,
        openFolders,
      }

    case 'ADD_FILES':
      files = action.files
      folder_id = Number(files[0] && files[0].folder_id)
      folders = state.folders.map( (folder) => {
        if (folder.id === folder_id) {
          folder.files = ( folder.files || [] ).concat(files)
          return Object.assign({}, folder)
        }
        else {
          return folder
        }
      })

      return {
        ...state,
        folders
      }
    
    case 'ADD_FILE':
      file = action.file
      folders = state.folders.map( (folder) => {
        if (folder.id === file.folder_id) {
          folder.files = folder.files || []
          folder.files.push(file)
          return Object.assign({}, folder)
        }
        else {
          return folder
        }
      })

      return {
        ...state,
        folders
      }
    
    case 'UPDATE_FILE':
      file = action.file
      folders = state.folders.map( (folder) => {
        if (folder.id === file.folder_id && folder.files) {
          folder.files = folder.files.map( f => f.id == file.id ? file : f )
          return Object.assign({}, folder)
        }
        else {
          return folder
        }
      })

      return {
        ...state,
        folders: folders
      }
    
    default:
      return state
  }
}

export default folders