/**
 * Thing Extension - Popup 脚本
 * 配置 RPC 地址、密钥等参数，存储到 chrome.storage.local
 */

const $ = (id) => document.getElementById(id)

const DEFAULT_CONFIG = {
  rpcUrl: 'http://127.0.0.1:6800/jsonrpc',
  rpcSecret: '',
  interceptDownload: true,
  minSize: 0,
  excludeDomains: [],
  showNotifications: true
}

function setStatus(state, text) {
  const dot = $('statusDot')
  const txt = $('statusText')
  dot.className = 'dot ' + (state === 'ok' ? 'ok' : state === 'fail' ? 'fail' : '')
  txt.textContent = text
}

async function loadConfig() {
  return new Promise((resolve) => {
    chrome.runtime.sendMessage({ type: 'getConfig' }, (config) => {
      resolve(config || { ...DEFAULT_CONFIG })
    })
  })
}

function fillForm(config) {
  $('rpcUrl').value = config.rpcUrl || DEFAULT_CONFIG.rpcUrl
  $('rpcSecret').value = config.rpcSecret || ''
  $('interceptDownload').checked = config.interceptDownload !== false
  $('showNotifications').checked = config.showNotifications !== false
  $('minSize').value = config.minSize || 0
  $('excludeDomains').value = (config.excludeDomains || []).join(',')
}

function readForm() {
  return {
    rpcUrl: $('rpcUrl').value.trim() || DEFAULT_CONFIG.rpcUrl,
    rpcSecret: $('rpcSecret').value.trim(),
    interceptDownload: $('interceptDownload').checked,
    showNotifications: $('showNotifications').checked,
    minSize: parseInt($('minSize').value, 10) || 0,
    excludeDomains: $('excludeDomains').value
      .split(',')
      .map(s => s.trim())
      .filter(Boolean)
  }
}

document.getElementById('configForm').addEventListener('submit', async (e) => {
  e.preventDefault()
  const config = readForm()
  chrome.runtime.sendMessage({ type: 'saveConfig', config }, (res) => {
    if (res && res.ok) {
      setStatus('', '已保存')
      setTimeout(() => window.close(), 500)
    } else {
      setStatus('fail', '保存失败：' + (res?.error || '未知错误'))
    }
  })
})

$('testBtn').addEventListener('click', () => {
  setStatus('', '测试中...')
  // 先保存当前表单值，再测试
  const config = readForm()
  chrome.runtime.sendMessage({ type: 'saveConfig', config }, () => {
    chrome.runtime.sendMessage({ type: 'testConnection' }, (res) => {
      if (res && res.ok) {
        setStatus('ok', `已连接 · aria2 ${res.version}`)
      } else {
        setStatus('fail', '连接失败：' + (res?.error || '未知错误'))
      }
    })
  })
})

// 初始化
;(async () => {
  const config = await loadConfig()
  fillForm(config)
  // 自动测试一次连接
  setStatus('', '检测中...')
  chrome.runtime.sendMessage({ type: 'testConnection' }, (res) => {
    if (res && res.ok) {
      setStatus('ok', `已连接 · aria2 ${res.version}`)
    } else {
      setStatus('fail', '未连接')
    }
  })
})()