/**
 * Execute all panorama queries in parallel
 * Returns data for the Panorama Facturador page
 */
export default defineEventHandler(async (event) => {
  const body = await readBody(event)

  const { fecha_desde = null, fecha_hasta = null, incluir_anulados = false } = body

  try {
    // First, get all cards to find our panorama queries
    const allCards = await getMetabaseCards('all')

    // Find our panorama queries by name
    const queryNames = [
      'panorama_totales_financieros_principales',
      'panorama_totales_ingreso_compra',
      'panorama_totales_monetarios',
      'panorama_totales_verde',
      'panorama_secos_vendidos',
      'panorama_rechazos_subproductos',
      'panorama_serie_temporal_diaria',
      'panorama_top_clientes',
      'panorama_conteo_registros'
    ]

    const cards: Record<string, any> = {}

    for (const name of queryNames) {
      const card = allCards.find((c: any) => c.name === name)
      if (!card) {
        console.warn(`[Panorama] Query not found: ${name}`)
      } else {
        cards[name] = card
      }
    }

    // Build parameters array for Metabase queries
    // Los valores null se pasan directamente a Metabase para que use sus propios defaults
    const parameters = [
      {
        type: 'date/single',
        target: ['variable', ['template-tag', 'fecha_desde']],
        value: fecha_desde
      },
      {
        type: 'date/single',
        target: ['variable', ['template-tag', 'fecha_hasta']],
        value: fecha_hasta
      },
      {
        type: 'category',
        target: ['variable', ['template-tag', 'incluir_anulados']],
        value: incluir_anulados
      }
    ]

    // Execute all queries in parallel with error handling
    const executeWithErrorHandling = async (name: string, cardId: number | undefined, defaultValue: any) => {
      if (!cardId) {
        console.warn(`[Panorama] No card ID for ${name}`)
        return defaultValue
      }

      try {
        console.log(`[Panorama] Executing query: ${name} (ID: ${cardId})`)
        const result = await executeCardQuery(cardId, parameters)
        console.log(`[Panorama] Query ${name} returned ${result.data?.rows?.length || 0} rows`)
        return result
      } catch (error: any) {
        console.error(`[Panorama] Error executing ${name}:`, error.message)
        return defaultValue
      }
    }

    const [
      financieros,
      ingresoCompra,
      monetarios,
      verde,
      secosVendidos,
      rechazos,
      serieTemporal,
      topClientes,
      conteos
    ] = await Promise.all([
      executeWithErrorHandling('financieros', cards['panorama_totales_financieros_principales']?.id, { data: { rows: [[0, 0, 0]], cols: [] } }),
      executeWithErrorHandling('ingresoCompra', cards['panorama_totales_ingreso_compra']?.id, { data: { rows: [[]], cols: [] } }),
      executeWithErrorHandling('monetarios', cards['panorama_totales_monetarios']?.id, { data: { rows: [[]], cols: [] } }),
      executeWithErrorHandling('verde', cards['panorama_totales_verde']?.id, { data: { rows: [[]], cols: [] } }),
      executeWithErrorHandling('secosVendidos', cards['panorama_secos_vendidos']?.id, { data: { rows: [[]], cols: [] } }),
      executeWithErrorHandling('rechazos', cards['panorama_rechazos_subproductos']?.id, { data: { rows: [], cols: [] } }),
      executeWithErrorHandling('serieTemporal', cards['panorama_serie_temporal_diaria']?.id, { data: { rows: [], cols: [] } }),
      executeWithErrorHandling('topClientes', cards['panorama_top_clientes']?.id, { data: { rows: [], cols: [] } }),
      executeWithErrorHandling('conteos', cards['panorama_conteo_registros']?.id, { data: { rows: [[0, 0, 0, 0]], cols: [] } })
    ])

    // Transform Metabase responses to objects for easier frontend consumption
    const transformSingleRow = (result: any) => {
      if (!result.data?.rows?.[0] || !result.data?.cols) return {}

      const row = result.data.rows[0]
      const cols = result.data.cols
      const obj: any = {}

      cols.forEach((col: any, index: number) => {
        obj[col.name] = row[index]
      })

      return obj
    }

    const transformMultipleRows = (result: any) => {
      if (!result.data?.rows || !result.data?.cols) return []

      const cols = result.data.cols
      return result.data.rows.map((row: any[]) => {
        const obj: any = {}
        cols.forEach((col: any, index: number) => {
          obj[col.name] = row[index]
        })
        return obj
      })
    }

    // Return all data in a structured format
    return {
      financieros: transformSingleRow(financieros),
      ingresoCompra: transformSingleRow(ingresoCompra),
      monetarios: transformSingleRow(monetarios),
      verde: transformSingleRow(verde),
      secosVendidos: transformSingleRow(secosVendidos),
      rechazos: transformMultipleRows(rechazos),
      serieTemporal: transformMultipleRows(serieTemporal),
      topClientes: transformMultipleRows(topClientes),
      conteos: transformSingleRow(conteos)
    }
  } catch (error: any) {
    console.error('[API] Failed to execute panorama queries:', error)
    throw createError({
      statusCode: error.statusCode || 500,
      statusMessage: error.statusMessage || 'Failed to execute panorama queries'
    })
  }
})