import { IProject, IProjectsState, IDrag } from 'model'
import { storeBuilder } from './Store/Store'

import Api from '@api'
import { tools } from './tools'
import * as ApiTables from './ApiTables'
import { GlobalStore, UserStore } from '@store'
import globalroutines from './../../globalroutines/index'
import objectId from '@src/js/objectId'
import { costanti } from '@src/store/Modules/costanti'

const nametable = 'projects'

// import _ from 'lodash'

const state: IProjectsState = {
  showtype: costanti.ShowTypeTask.SHOW_LAST_N_COMPLETED,
  projects: [],
  insidePending: false,
  visuLastCompleted: 10
}

const fieldtochange: string [] = ['descr', 'longdescr', 'hoursplanned', 'hoursworked', 'id_parent', 'completed', 'category', 'expiring_at', 'priority', 'id_prev', 'pos', 'enableExpiring', 'progress']

const b = storeBuilder.module<IProjectsState>('Projects', state)
const stateGetter = b.state()

// function getindexbycategory(category: string) {
//   return state.categories.indexOf(category)
// }

function getarrByCategory(category: string) {
  // const indcat = state.categories.indexOf(category)
  if (!state.projects) {
    return []
  }
  return state.projects
}

function initcat() {

  // return this.copy(objproj)
  let rec = Getters.getters.getRecordEmpty()
  rec.userId = UserStore.state.userId

  return rec

}

namespace Getters {
  const getRecordEmpty = b.read((state: IProjectsState) => (): IProject => {
    // const tomorrow = new Date()
    // tomorrow.setDate(tomorrow.getDate() + 1)

    const obj: IProject = {
      _id: objectId(),
      descr: '',
      id_parent: '',
      priority: tools.Priority.PRIORITY_NORMAL,
      completed: false,
      created_at: new Date(),
      modify_at: new Date(),
      completed_at: new Date(),
      category: '',
      // expiring_at: tomorrow,
      enableExpiring: false,
      id_prev: '',
      pos: 0,
      modified: false,
      progressCalc: 0
    }

    return obj
  }, 'getRecordEmpty')

  const items_dacompletare = b.read((state: IProjectsState) => (id_parent: string): IProject[] => {
    if (state.projects) {
      return tools.mapSort(state.projects.filter((proj) => proj.id_parent === id_parent))
    } else {
      return []
    }
  }, 'items_dacompletare')

  const getDescrById = b.read((state: IProjectsState) => (id: string): string => {
    if (id === tools.FIRST_PROJ)
      return 'Projects'
    if (state.projects) {
      const item = state.projects.find((item) => item._id === id)
      if (!!item)
        return item.descr
    }

    return ''
  }, 'getDescrById')

  const getParentById = b.read((state: IProjectsState) => (id: string): string => {
    if (state.projects) {
      const item = state.projects.find((item) => item._id === id)
      if (!!item)
        return item.id_parent
    }

    return ''
  }, 'getParentById')

  const getRecordById = b.read((state: IProjectsState) => (id: string): IProject => {
    if (state.projects) {
      return state.projects.find((item) => item._id === id)
    }
    return null
  }, 'getRecordById')

  export const getters = {
    get getRecordEmpty() {
      return getRecordEmpty()
    },
    get items_dacompletare() {
      return items_dacompletare()
    },
    get getDescrById() {
      return getDescrById()
    },
    get getParentById() {
      return getParentById()
    },
    get getRecordById() {
      return getRecordById()
    }

  }
}

namespace Mutations {

  function createNewItem(state: IProjectsState, { objproj, atfirst, categorySel }) {
    console.log('createNewItem', objproj, 'cat=', categorySel, 'state.projects', state.projects)
    if (state.projects === undefined) {
      state.projects = []
      state.projects.push(objproj)
      console.log('push state.projects', state.projects)
      return
    }
    if (atfirst) {
      state.projects.unshift(objproj)
    }
    else {
      state.projects.push(objproj)
    }

    console.log('state.projects', state.projects)

  }

  function deletemyitem(state: IProjectsState, myitem: IProject) {
    // Find record
    const ind = tools.getIndexById(state.projects, myitem._id)

    ApiTables.removeitemfromarray(state.projects, ind)
  }

  export const mutations = {
    deletemyitem: b.commit(deletemyitem),
    createNewItem: b.commit(createNewItem)
  }

}

namespace Actions {

  async function dbLoad(context, { checkPending, onlyiffirsttime }) {

    if (onlyiffirsttime) {
      if (state.projects.length > 0) {
        // if already set, then exit.
        return false
      }
    }

    if (UserStore.state.userId === '') {
      return false  // Login not made
    }

    console.log('dbLoad', nametable, checkPending, 'userid=', UserStore.state.userId)

    const ris = await Api.SendReq('/projects/' + UserStore.state.userId, 'GET', null)
      .then((res) => {
        if (res.data.projects) {  // console.log('RISULTANTE CATEGORIES DAL SERVER = ', res.data.categories)
          state.projects = res.data.projects
        } else {
          state.projects = []
        }

        state.showtype = parseInt(GlobalStore.getters.getConfigStringbyId({
          id: costanti.CONFIG_ID_SHOW_TYPE_TODOS,
          default: costanti.ShowTypeTask.SHOW_LAST_N_COMPLETED
        }), 10)

        // console.log('ARRAY TODOS = ', state.projects)
        if (process.env.DEBUG === '1') {
          console.log('dbLoad', 'state.projects', state.projects)
        }

        return res
      })
      .catch((error) => {
        console.log('error dbLoad', error)
        UserStore.mutations.setErrorCatch(error)
        return error
      })

    ApiTables.aftercalling(ris, checkPending, 'categories')
  }

  async function deleteItem(context, { idobj }) {
    console.log('deleteItem: KEY = ', idobj)

    const myarr = getarrByCategory('')

    const myobjtrov = tools.getElemById(myarr, idobj)

    console.log('myobjtrov', myobjtrov.descr)

    if (!!myobjtrov) {
      const myobjnext = tools.getElemPrevById(myarr, myobjtrov._id)

      if (!!myobjnext) {
        myobjnext.id_prev = myobjtrov.id_prev
        myobjnext.modified = true
        await modify(context, { myitem: myobjnext, field: 'id_prev' })
      }

      ApiTables.table_DeleteRecord(nametable, myobjtrov, idobj)
    }
  }

  async function dbInsert(context, { myobj, atfirst }) {

    const objproj = initcat()

    objproj.descr = myobj.descr
    objproj.category = myobj.category
    objproj.id_parent = myobj.id_parent

    let elemtochange: IProject = null

    const myarr = getarrByCategory(objproj.category)

    if (atfirst) {
      console.log('INSERT AT THE TOP')
      elemtochange = tools.getFirstList(myarr)
      objproj.id_prev = ApiTables.LIST_START
    } else {
      console.log('INSERT AT THE BOTTOM')
      // INSERT AT THE BOTTOM , so GET LAST ITEM
      const lastelem = tools.getLastListNotCompleted(nametable, objproj.id_parent)

      objproj.id_prev = (!!lastelem) ? lastelem._id : ApiTables.LIST_START
    }
    objproj.modified = false

    Mutations.mutations.createNewItem({ objproj, atfirst, categorySel: objproj.category })    // 1) Create record in Memory

    const id = await globalroutines(context, 'write', nametable, objproj)           // 2) Insert into the IndexedDb

    let field = ''
    if (atfirst) {    // update also the last elem
      if (!!elemtochange) {
        elemtochange.id_prev = id
        console.log('elemtochange', elemtochange)
        field = 'id_prev'

        // Modify the other record
        await modify(context, { myitem: elemtochange, field })
      }
    }

    // 3) send to the Server
    return await ApiTables.Sync_SaveItem(nametable, 'POST', objproj)
  }

  async function modify(context, { myitem, field }) {
    return await ApiTables.table_ModifyRecord(nametable, myitem, fieldtochange)
  }

  async function swapElems(context, itemdragend: IDrag) {
    console.log('PROJECT swapElems', itemdragend, state.projects)

    const myarr = Getters.getters.items_dacompletare(itemdragend.id_proj)

    tools.swapGeneralElem(nametable, myarr, itemdragend, fieldtochange)

  }

  export const actions = {
    dbLoad: b.dispatch(dbLoad),
    swapElems: b.dispatch(swapElems),
    deleteItem: b.dispatch(deleteItem),
    dbInsert: b.dispatch(dbInsert),
    modify: b.dispatch(modify)
  }

}

// Module
const ProjectsModule = {
  get state() {
    return stateGetter()
  },
  getters: Getters.getters,
  mutations: Mutations.mutations,
  actions: Actions.actions
}

export default ProjectsModule