import { fullScreen, exec, toast } from './kernelsu.js'

import { setNewLanguage, getTranslations } from './language.js'

export function setError(place, issue) {
  const fullErrorLog = setErrorData(`${place}: ${issue}`)
  document.getElementById('errorh_panel').innerHTML = fullErrorLog

  toast(`${place}: ${issue}`)
}

export function setLangData(mode) {
  localStorage.setItem('/system/language', mode)

  return localStorage.getItem('/system/language')
}

export function setErrorData(errorLog) {
  const getPrevious = localStorage.getItem('/system/error')
  const finalLog = getPrevious && getPrevious.length !== 0 ? getPrevious + `\n` + errorLog : errorLog

  localStorage.setItem('/system/error', finalLog)

  return finalLog
}

async function getModuleNames(modules) {
  const fullCommand = modules.map((mod) => {
    let propPath = `/data/adb/modules/${mod.id}/module.prop`

    return `printf % ; if test -f "${propPath}"; then /system/bin/grep '^name=' "${propPath}" | /system/bin/cut -d '=' -f 2- 2>/dev/null || true; else true; fi ; printf "\\n"`
  }).join(' ; ')

  const result = await exec(fullCommand)
  if (result.errno !== 0) {
    setError('getModuleNames', 'Failed to execute command to retrieve module list names')

    return null
  }

  return result.stdout.split('\n\n')
}

(async () => {
  /* INFO: Test ksu module availability */
  exec('echo "Hello world!"')
    .then(() => console.log('[kernelsu.js] Package is ready!'))
    .catch(err => {
      console.log('[kernelsu.js] Package is not ready! Below is error:')
      console.error(err)
    })

  fullScreen(true)

  let sys_lang = localStorage.getItem('/system/language')

  if (!sys_lang) sys_lang = setLangData('en_US')
  if (sys_lang !== 'en_US') await setNewLanguage(sys_lang, true)

  const translations = await getTranslations(sys_lang)

  const loading_screen = document.getElementById('loading_screen')
  const bottom_nav = document.getElementById('navbar_support_div')

  const rootCss = document.querySelector(':root')

  const rezygisk_state = document.getElementById('rezygisk_state')
  const rezygisk_icon_state = document.getElementById('rezygisk_icon_state')

  const version = document.getElementById('version')
  const root_impl = document.getElementById('root_impl')

  const monitor_status = document.getElementById('monitor_status')

  const zygote_divs = [
    document.getElementById('zygote64'),
    document.getElementById('zygote32')
  ]

  const zygote_status_divs = [
    document.getElementById('zygote64_status'),
    document.getElementById('zygote32_status')
  ]

  const androidVersionCmd = await exec('/system/bin/getprop ro.build.version.release')
  if (androidVersionCmd.errno !== 0) return setError('WebUI', androidVersionCmd.stderr)

  document.getElementById('android_version_div').innerHTML = androidVersionCmd.stdout
  console.log('[rezygisk.js] Android version: ', androidVersionCmd.stdout)

  const unameCmd = await exec('/system/bin/uname -r')
  if (unameCmd.errno !== 0) return setError('WebUI', unameCmd.stderr)

  document.getElementById('kernel_version_div').innerHTML = unameCmd.stdout.trim()
  console.log('[rezygisk.js] Kernel version: ', unameCmd.stdout.trim())

  const catCmd = await exec('/system/bin/cat /data/adb/rezygisk/module.prop')
  console.log(`[rezygisk.js] ReZygisk module infomation:\n${catCmd.stdout}`)

  if (catCmd.errno !== 0) {
    console.error('[rezygisk.js] Failed to retrieve ReZygisk module information:', catCmd.stderr)

    rezygisk_state.innerHTML = translations.page.home.status.notWorking
    rezygisk_icon_state.innerHTML = '<img class="dimc" src="assets/cross.svg">'

    rootCss.style.setProperty('--bright', '#766000')

    /* INFO: Hide zygote divs */
    zygote_divs.forEach((zygote_div) => {
      zygote_div.style.display = 'none'
    })

    loading_screen.style.display = 'none'
    bottom_nav.style.display = 'flex'

    return;
  }

  /* INFO: Just ensure that they won't appear unless there's info */
  zygote_divs.forEach((zygote_div) => {
    zygote_div.style.display = 'none'
  })

  version.innerHTML = catCmd.stdout.split('\n').find((line) => line.startsWith('version=')).substring('version='.length).trim()

  const stateCmd = await exec('/system/bin/cat /data/adb/rezygisk/state.json')
  if (stateCmd.errno !== 0) {
    console.error('[rezygisk.js] Failed to retrieve ReZygisk state information:', stateCmd.stderr)

    rezygisk_state.innerHTML = translations.page.home.status.notWorking
    rezygisk_icon_state.innerHTML = '<img class="dimc" src="assets/cross.svg">'

    rootCss.style.setProperty('--bright', '#766000')

    /* INFO: Hide zygote divs */
    zygote_divs.forEach((zygote_div) => {
      zygote_div.style.display = 'none'
    })

    loading_screen.style.display = 'none'
    bottom_nav.style.display = 'flex'

    return;
  }

  const ReZygiskState = JSON.parse(stateCmd.stdout)

  root_impl.innerHTML = ReZygiskState.root

  switch (ReZygiskState.monitor.state) {
    case 0: monitor_status.innerHTML = translations.page.actions.status.tracing; break;
    case 1: monitor_status.innerHTML = translations.page.actions.status.stopping; break;
    case 2: monitor_status.innerHTML = translations.page.actions.status.stopped; break;
    case 3: monitor_status.innerHTML = translations.page.actions.status.exiting; break;
    default: monitor_status.innerHTML = translations.page.actions.status.unknown;
  }

  const expectedWorking = (ReZygiskState.zygote['64'] !== undefined ? 1 : 0) + (ReZygiskState.zygote['32'] !== undefined ? 1 : 0)
  let actuallyWorking = 0

  if (ReZygiskState.zygote['64'] !== undefined) {
    const zygote64 = ReZygiskState.zygote['64']

    zygote_divs[0].style.display = 'block'

    switch (zygote64) {
      case 1: {
        zygote_status_divs[0].innerHTML = translations.page.home.info.zygote.injected

        actuallyWorking++

        break
      }
      case 0: zygote_status_divs[0].innerHTML = translations.page.home.info.zygote.notInjected; break
      default: zygote_status_divs[0].innerHTML = translations.page.home.info.zygote.unknown
    }
  }

  if (ReZygiskState.zygote['32'] !== undefined) {
    const zygote32 = ReZygiskState.zygote['32']

    zygote_divs[1].style.display = 'block'

    switch (zygote32) {
      case 1: {
        zygote_status_divs[1].innerHTML = translations.page.home.info.zygote.injected

        actuallyWorking++

        break
      }
      case 0: zygote_status_divs[1].innerHTML = translations.page.home.info.zygote.notInjected; break
      default: zygote_status_divs[1].innerHTML = translations.page.home.info.zygote.unknown
    }
  }

  if (expectedWorking === 0 || actuallyWorking === 0) {
    rezygisk_state.innerHTML = translations.page.home.status.notWorking
  } else if (expectedWorking === actuallyWorking) {
    rezygisk_state.innerHTML = translations.page.home.status.ok

    rootCss.style.setProperty('--bright', '#3a4857')
    rezygisk_icon_state.innerHTML = '<img class="brightc" src="assets/tick.svg">'
  } else {
    rezygisk_state.innerHTML = translations.page.home.status.partially

    rootCss.style.setProperty('--bright', '#766000')
    rezygisk_icon_state.innerHTML = '<img class="brightc" src="assets/warn.svg">'
  }

  const all_modules = []
  Object.keys(ReZygiskState.rezygiskd).forEach((daemon_bit) => {
    const daemon = ReZygiskState.rezygiskd[daemon_bit]

    if (daemon.modules && daemon.modules.length > 0) {
      daemon.modules.forEach((module_id) => {
        const module = all_modules.find((mod) => mod.id === module_id)
        if (module) {
          module.bitsUsed.push(daemon_bit)
        } else {
          all_modules.push({
            id: module_id,
            name: null,
            bitsUsed: [ daemon_bit ]
          })
        }
      })
    }
  })

  if (all_modules.length !== 0) {
    document.getElementById('modules_list_not_avaliable').style.display = 'none'

    const module_names = await getModuleNames(all_modules)
    module_names.forEach((module_name, i) => all_modules[i].name = module_name)

    console.log(`[rezygisk.js] Module list:`)
    console.log(all_modules)

    const modules_list = document.getElementById('modules_list')

    all_modules.forEach((module) => {
      modules_list.innerHTML += 
        `<div class="dim card" style="padding: 25px 15px; cursor: pointer;">
          <div class="dimc" style="font-size: 1.1em;">${module.name}</div>
          <div class="dimc desc" style="font-size: 0.9em; margin-top: 3px; white-space: nowrap; align-items: center; display: flex;">
            <div class="dimc arch_desc">${translations.page.modules.arch}</div>
            <div class="dimc" style="margin-left: 5px;">${module.bitsUsed.join(' / ')}</div>
          </div>
        </div>`
    })
  
  }

  /* INFO: This hides the throbber screen */
  loading_screen.style.display = 'none'
  bottom_nav.style.display = 'flex'

  const start_time = Number(localStorage.getItem('/system/boot-time'))
  console.log('[rezygisk.js] boot time: ', Date.now() - start_time, 'ms')
  localStorage.removeItem('/system/boot_time')
})().catch((err) => setError('WebUI', err.stack ? err.stack : err.message))