const express = require('express')
const { getSituation } = require('./situationData')
const db = require('./db')

const router = express.Router()

// 数据库 Dashboard：返回各表原始数据
router.get('/db/dashboard', (req, res) => {
  try {
    const tables = [
      'situation',
      'force_summary',
      'power_index',
      'force_asset',
      'key_location',
      'combat_losses',
      'wall_street_trend',
      'retaliation_current',
      'retaliation_history',
      'situation_update',
      'gdelt_events',
      'conflict_stats',
    ]
    const data = {}
    const timeSort = {
      situation: 'updated_at DESC',
      situation_update: 'timestamp DESC',
      gdelt_events: 'event_time DESC',
      wall_street_trend: 'time DESC',
      retaliation_history: 'time DESC',
      conflict_stats: 'updated_at DESC',
    }
    for (const name of tables) {
      try {
        const order = timeSort[name]
        let rows
        try {
          rows = order
            ? db.prepare(`SELECT * FROM ${name} ORDER BY ${order}`).all()
            : db.prepare(`SELECT * FROM ${name}`).all()
        } catch (qerr) {
          rows = db.prepare(`SELECT * FROM ${name}`).all()
        }
        data[name] = rows
      } catch (e) {
        data[name] = { error: e.message }
      }
    }
    res.json(data)
  } catch (err) {
    console.error(err)
    res.status(500).json({ error: err.message })
  }
})

router.get('/situation', (req, res) => {
  try {
    res.json(getSituation())
  } catch (err) {
    console.error(err)
    res.status(500).json({ error: err.message })
  }
})

router.get('/events', (req, res) => {
  try {
    const s = getSituation()
    res.json({
      updated_at: s.lastUpdated,
      count: (s.conflictEvents || []).length,
      events: s.conflictEvents || [],
      conflict_stats: s.conflictStats || {},
    })
  } catch (err) {
    console.error(err)
    res.status(500).json({ error: err.message })
  }
})

module.exports = router