import { Router } from 'express'
import { getDb } from '../db.js'
import { fetchDashboardInfo, testConnection } from '../adapters/billmanager/index.js'
import { runBillmanagerAccountSync } from '../sync-account-job.js'
import { billmanagerAccountRowForSync } from '../utils/billmanager-context.js'

const router = Router()

router.post('/test-connection', async (req, res) => {
  try {
    const { apiBaseUrl, apiCredentials } = req.body || {}
    if (!apiBaseUrl?.trim() || !apiCredentials?.trim()) {
      return res.status(400).json({ ok: false, error: 'Укажите URL и учётные данные' })
    }
    const result = await testConnection(apiBaseUrl.trim(), apiCredentials.trim())
    res.json(result)
  } catch (err) {
    res.status(500).json({ ok: false, error: err.message || 'Ошибка проверки' })
  }
})

router.get('/status', (req, res) => {
  try {
    const db = getDb()
    const rows = db.prepare(`
      SELECT id, accountId, startedAt, finishedAt, status, vpsCount, paymentsCount, error, summary
      FROM sync_log ORDER BY startedAt DESC LIMIT 50
    `).all()
    res.json(
      rows.map((row) => {
        let summaryParsed = null
        if (row.summary) {
          try {
            summaryParsed = JSON.parse(row.summary)
          } catch {
            summaryParsed = null
          }
        }
        return { ...row, summary: summaryParsed }
      }),
    )
  } catch (err) {
    res.status(500).json({ error: err.message })
  }
})

router.get('/:accountId/balance', async (req, res) => {
  try {
    const db = getDb()
    const { accountId } = req.params
    const row = db.prepare('SELECT * FROM provider_accounts WHERE id = ?').get(accountId)
    if (!row) {
      return res.status(404).json({ error: 'Account not found' })
    }
    const provider = row.providerId
      ? db.prepare('SELECT * FROM providers WHERE id = ?').get(row.providerId)
      : null
    const syncRow = billmanagerAccountRowForSync(row, provider)
    if (!syncRow) {
      return res.status(400).json({
        error:
          'Укажите в настройках хостера тип API BILLmanager и URL; в аккаунте — логин и пароль API',
      })
    }
    const info = await fetchDashboardInfo(syncRow.apiBaseUrl, syncRow.apiCredentials.trim(), {
      fallbackCurrency: row.currency,
    })
    db.run(
      'UPDATE provider_accounts SET balance_api=?, balance_currency=?, balance_updated_at=?, enoughmoneyto=? WHERE id=?',
      info.balance,
      info.currency || 'RUB',
      new Date().toISOString(),
      info.enoughmoneyto || '',
      accountId,
    )
    res.json({ ok: true, balance: info })
  } catch (err) {
    console.error('Balance fetch error:', err)
    res.status(500).json({ ok: false, error: err.message || 'Failed to fetch balance' })
  }
})

router.post('/:accountId', async (req, res) => {
  try {
    const db = getDb()
    const { accountId } = req.params
    const { onlyTariffs = false } = req.body || {}
    const row = db.prepare('SELECT * FROM provider_accounts WHERE id = ?').get(accountId)
    if (!row) {
      return res.status(404).json({ error: 'Account not found' })
    }
    const provider = row.providerId
      ? db.prepare('SELECT * FROM providers WHERE id = ?').get(row.providerId)
      : null
    const syncRow = billmanagerAccountRowForSync(row, provider)
    if (!syncRow) {
      return res.status(400).json({
        error:
          'Укажите в настройках хостера тип API BILLmanager и URL; в аккаунте — логин и пароль API',
      })
    }

    const opts = onlyTariffs ? { skipVpsPayments: true } : { skipTariffs: true }
    const result = await runBillmanagerAccountSync(syncRow, opts)

    res.json({
      ok: true,
      synced: {
        vpsCount: result.vpsCount,
        paymentsCount: result.paymentsCount,
        tariffsCount: result.tariffsCount ?? 0,
      },
    })
  } catch (err) {
    console.error('Sync error:', err)
    res.status(500).json({ ok: false, error: err.message || 'Sync failed' })
  }
})

export default router