const crcTool = require('../../tools/crc-hash/crc-tool.js')
const asciiCodeTool = require('../../tools/ascii-code/index.js')
const filterCalculator = require('../../tools/filter/index.js')
const smdCodeCalculator = require('../../tools/smd-code/index.js')
const refrigerationCalculator = require('../../tools/refrigeration/index.js')
const reactanceCalculator = require('../../tools/reactance/index.js')
const threePhasePowerCalculator = require('../../tools/three-phase-power/index.js')
const {
  getWxApi
} = require('../../utils/base-utils.js')

const crcHandlers = require('./handlers/crc.js')
const asciiCodeHandlers = require('./handlers/ascii-code.js')
const filterHandlers = require('./handlers/filter.js')
const reactanceHandlers = require('./handlers/reactance.js')
const refrigerationHandlers = require('./handlers/refrigeration.js')
const smdCodeHandlers = require('./handlers/smd-code.js')
const threePhasePowerHandlers = require('./handlers/three-phase-power.js')

const TOOL_MODULES = [
  { view: 'crc', label: 'CRC与哈希计算', icon: 'icon-crc', iconSrc: '/assets/icons/hash-white.png', calculator: crcTool, handlers: crcHandlers.handlers },
  { view: 'asciiCode', label: 'ASCII/数值转换', icon: 'icon-terminal', iconSrc: '/assets/icons/terminal-white.png', calculator: asciiCodeTool, handlers: asciiCodeHandlers.handlers },
  { view: 'filter', label: '滤波器计算', icon: 'icon-filter', iconSrc: '/assets/icons/funnel-white.png', calculator: filterCalculator, handlers: filterHandlers.handlers },
  { view: 'reactance', label: '电抗计算', icon: 'icon-reactance', iconSrc: '/assets/icons/audio-waveform-white.png', calculator: reactanceCalculator, handlers: reactanceHandlers.handlers },
  { view: 'smdCode', label: '贴片电阻/容代码', icon: 'icon-smd', iconSrc: '/assets/icons/microchip-white.png', calculator: smdCodeCalculator, handlers: smdCodeHandlers.handlers },
  { view: 'refrigeration', label: '制冷计算', icon: 'icon-snow', iconSrc: '/assets/icons/snowflake-white.png', calculator: refrigerationCalculator, handlers: refrigerationHandlers.handlers },
  { view: 'threePhasePower', label: '三相功率计算', icon: 'icon-three-phase', iconSrc: '/assets/icons/zap-white.png', calculator: threePhasePowerCalculator, handlers: threePhasePowerHandlers.handlers }
]
const TOOL_ENTRIES = TOOL_MODULES.map((item) => ({
  icon: item.icon,
  iconSrc: item.iconSrc,
  label: item.label,
  view: item.view
}))

function getToolEntries() {
  return TOOL_ENTRIES.map((item) => ({ ...item }))
}

function isToolView(view) {
  return TOOL_ENTRIES.some((item) => item.view === view)
}

function getToolEntry(view) {
  return TOOL_ENTRIES.find((item) => item.view === view) || null
}

function getToolTitle(view) {
  const entry = getToolEntry(view)
  return entry ? entry.label : ''
}

function createToolInitialState() {
  return TOOL_MODULES.reduce((state, item) => {
    if (!item.calculator || typeof item.calculator.createInitialState !== 'function') return state

    return {
      ...state,
      ...item.calculator.createInitialState()
    }
  }, {})
}

const toolNavigation = {
  getToolEntry,
  getToolEntries,
  getToolTitle,
  isToolView
}

function copyToolResult(event) {
  const value = event && event.currentTarget && event.currentTarget.dataset
    ? event.currentTarget.dataset.value
    : ''
  const text = String(value === undefined || value === null ? '' : value).trim()

  if (!text || text === '--') return

  const wxApi = getWxApi()
  if (typeof wxApi.setClipboardData !== 'function') {
    if (this.pageToast) this.pageToast.show('当前环境不支持复制', 'error')
    return
  }

  wxApi.setClipboardData({
    data: text,
    fail: () => {
      if (this.pageToast) this.pageToast.show('复制失败', 'error')
    },
    success: () => {
      if (this.pageToast) this.pageToast.show('已复制')
    }
  })
}

function createToolHandlers() {
  return TOOL_MODULES.reduce((handlers, item) => {
    if (!item.handlers) return handlers

    return {
      ...handlers,
      ...item.handlers
    }
  }, {})
}

const toolPageHandlers = {
  copyToolResult,
  ...createToolHandlers()
}

module.exports = {
  createToolInitialState,
  toolNavigation,
  toolPageHandlers
}