// 切換 Node-RED 舊版「羽球報名」流程的開關（同一個 bot 只能有一個 polling 端）
//
//   node scripts/nodered-switch.mjs pause    # 停用 bd_tab、bot 設定改 send-only → 讓本專案接手
//   node scripts/nodered-switch.mjs resume   # 還原 Node-RED polling（本專案要先停）
//   node scripts/nodered-switch.mjs status
//
// 用 Node-RED admin API（http://<host>:1880/flows），deploy type = nodes（只重啟有變動的節點）。
import 'dotenv/config'

const BASE = (process.env.NODERED_URL || 'http://192.168.5.45:1880').replace(/\/$/, '')
const TAB_ID = process.env.NODERED_BD_TAB || 'bd_tab'
const BOT_CONFIG_ID = process.env.NODERED_BD_BOT || 'tgbot_bd_config'
const mode = process.argv[2]

if (!['pause', 'resume', 'status'].includes(mode)) {
	console.error('用法：node scripts/nodered-switch.mjs pause|resume|status')
	process.exit(1)
}

const headers = { 'Node-RED-API-Version': 'v2', 'Content-Type': 'application/json' }
const res = await fetch(`${BASE}/flows`, { headers })
if (!res.ok) throw new Error(`GET /flows 失敗：${res.status}`)
const { rev, flows } = await res.json()

const tab = flows.find((n) => n.id === TAB_ID)
const bot = flows.find((n) => n.id === BOT_CONFIG_ID)
if (!tab || !bot) throw new Error(`找不到 ${TAB_ID} 或 ${BOT_CONFIG_ID}`)

const show = () =>
	console.log(`Node-RED ${BASE}\n  ${TAB_ID}: ${tab.disabled ? '停用' : '啟用'}\n  ${BOT_CONFIG_ID}.updatemode: ${bot.updatemode}`)

if (mode === 'status') {
	show()
	process.exit(0)
}

if (mode === 'pause') {
	tab.disabled = true
	bot.updatemode = 'none'
} else {
	tab.disabled = false
	bot.updatemode = 'polling'
}

const post = await fetch(`${BASE}/flows`, {
	method: 'POST',
	headers: { ...headers, 'Node-RED-Deployment-Type': 'nodes' },
	body: JSON.stringify({ rev, flows }),
})
if (!post.ok) throw new Error(`POST /flows 失敗：${post.status} ${await post.text()}`)
console.log(`✅ 已${mode === 'pause' ? '暫停' : '恢復'} Node-RED 羽球報名流程（rev ${(await post.json()).rev.slice(0, 8)}）`)
show()