import merge from 'lodash/merge'
import { loadJson, loadJsonSync } from '../json'
import { formatJson } from '../prettier'
import { BuildJson, Obj, ProjectFileProcessor } from '../type'

export const BUILD_JSON_FILE_NAME = 'build.json'

export const BUILD_JSON_SCHEMA: BuildJson = {
  targets: undefined,
  cone: {
    oneCode: undefined,
    lowcode: undefined,
    lowcodeEntryName: undefined,
    useLowcodeConfigs: undefined,
    dynamicSplitting: undefined,
    routerSplitting: undefined,
    cssModule: undefined,
  },
}

export async function loadBuildJson(dir: string): Promise<Obj> {
  return loadJson(dir, BUILD_JSON_FILE_NAME)
}

export function loadBuildJsonSync(dir: string): Obj {
  return loadJsonSync(dir, BUILD_JSON_FILE_NAME)
}

export const updateBuildJson: ProjectFileProcessor = async ({ obj, props }) => {
  const {
    mobile,
    oneCode,
    lowcode,
    useLowcodeConfigs,
    buildPluginPackageName,
    mpa,
  } = props

  let moreConfig = {}
  // oneCode 优先级比 mobile 高
  if (oneCode) {
    moreConfig = {
      targets: ['web', 'web-mobile'],
      cone: { oneCode: true },
    }
  } else if (mobile) {
    moreConfig = {
      targets: ['web-mobile'],
    }
  }
  const buildJson = merge({}, BUILD_JSON_SCHEMA, obj, moreConfig)

  // cone config
  if (buildJson.cone) {
    // 低码
    if (!lowcode) {
      delete buildJson.cone.lowcode
      delete buildJson.cone.lowcodeEntryName
    } else {
      buildJson.cone.lowcode = true
    }
    if (!useLowcodeConfigs) {
      delete buildJson.cone.useLowcodeConfigs
    } else {
      buildJson.cone.useLowcodeConfigs = true
    }
  }

  // 更新插件
  buildJson.plugins = buildJson.plugins || []

  // 自定义打包插件
  if (buildPluginPackageName) {
    const arr: string[] = Array.isArray(buildPluginPackageName)
      ? buildPluginPackageName
      : [buildPluginPackageName]
    for (const name of arr) {
      buildJson.plugins.splice(buildJson.plugins.length - 1, 0, name)
    }
  }

  // 如果是移动端, 移除插件 build-plugin-fusion
  if (mobile && !oneCode) {
    const idx = buildJson.plugins.findIndex((plugin) => {
      return Array.isArray(plugin) && plugin[0] === 'build-plugin-fusion'
    })
    if (idx !== -1) {
      buildJson.plugins.splice(idx, 1)
    }
  }

  if (mpa) {
    // mpa 移除build-plugin-router
    const idx = buildJson.plugins.findIndex((plugin) => {
      return Array.isArray(plugin) && plugin[0] === 'build-plugin-router'
    })
    if (idx !== -1) {
      buildJson.plugins.splice(idx, 1)
    }

    // 增加build-plugin-multi-pages
    const idxJsxPlus = buildJson.plugins.findIndex((plugin) => {
      return Array.isArray(plugin) && plugin[0] === 'build-plugin-jsx-plus'
    })
    if (idxJsxPlus) {
      buildJson.plugins.splice(idx + 1, 0, 'build-plugin-multi-pages')
    }
    if (buildJson.cone) {
      buildJson.cone.dynamicSplitting = false
      buildJson.cone.routerSplitting = false
    }
  }

  return buildJson
}