// 一次性运维工具：直接加载项目配置执行 EnsureDB + EnsureSchema（建新表 + 幂等补列），
// 绕过交互式管理员密码门禁（密码留在配置文件内，不落日志、不打印）。
// 用法：go run ./tools/migrateonce
package main

import (
	"context"
	"fmt"
	"os"

	"bj_power_mes/internal/config"
	"bj_power_mes/internal/db"

	"github.com/zeromicro/go-zero/core/conf"
)

func main() {
	var c config.Config
	conf.MustLoad("etc/bj_power_mes-api.yaml", &c)

	if err := db.EnsureDB(c.Database); err != nil {
		fmt.Println("ENSURE_DB_FAIL:", err)
		os.Exit(1)
	}
	client, sqlDB := db.MustNewDB(c.Database)
	defer client.Close()
	defer sqlDB.Close()

	// 迁移前现状：库名 + 现有表清单
	rows, err := sqlDB.QueryContext(context.Background(),
		`SELECT current_database(), COALESCE(string_agg(tablename, ','), '(empty)') FROM pg_tables WHERE schemaname='public'`)
	if err == nil && rows.Next() {
		var dbname, tables string
		_ = rows.Scan(&dbname, &tables)
		rows.Close()
		fmt.Printf("DB=%s TABLES_BEFORE=%s\n", dbname, tables)
	}

	if err := db.EnsureSchema(client, sqlDB); err != nil {
		fmt.Println("MIGRATE_FAIL:", err)
		os.Exit(1)
	}

	// 迁移结果自检：新表存在 + 旧表/旧列已清理
	var flowMatExists, stationStateExists, workpieceBindExists bool
	if err := sqlDB.QueryRowContext(context.Background(),
		`SELECT EXISTS(SELECT 1 FROM information_schema.tables WHERE table_schema='public' AND table_name='flow_material'),
		        EXISTS(SELECT 1 FROM information_schema.tables WHERE table_schema='public' AND table_name='station_state'),
		        EXISTS(SELECT 1 FROM information_schema.tables WHERE table_schema='public' AND table_name='workpiece_bind')`,
	).Scan(&flowMatExists, &stationStateExists, &workpieceBindExists); err != nil {
		fmt.Println("VERIFY_FAIL:", err)
		os.Exit(1)
	}
	var combinationCol, stationNoCol bool
	var stationProcessLeft, processCodeLeft bool
	if err := sqlDB.QueryRowContext(context.Background(),
		`SELECT EXISTS(SELECT 1 FROM information_schema.columns WHERE table_schema='public' AND table_name='work_order' AND column_name='flow_combination'),
		        EXISTS(SELECT 1 FROM information_schema.columns WHERE table_schema='public' AND table_name='workpiece' AND column_name='current_station_no'),
		        EXISTS(SELECT 1 FROM information_schema.tables WHERE table_schema='public' AND table_name='station_process'),
		        EXISTS(SELECT 1 FROM information_schema.columns WHERE table_schema='public' AND table_name='work_order_bom' AND column_name='process_code')`,
	).Scan(&combinationCol, &stationNoCol, &stationProcessLeft, &processCodeLeft); err != nil {
		fmt.Println("VERIFY_FAIL:", err)
		os.Exit(1)
	}

	fmt.Printf("MIGRATE_OK flow_material=%v station_state=%v workpiece_bind=%v work_order.flow_combination=%v workpiece.current_station_no=%v station_process_dropped=%v bom.process_code_dropped=%v\n",
		flowMatExists, stationStateExists, workpieceBindExists, combinationCol, stationNoCol, !stationProcessLeft, !processCodeLeft)
	if !flowMatExists || !stationStateExists || !workpieceBindExists || !combinationCol || !stationNoCol || stationProcessLeft || processCodeLeft {
		os.Exit(1)
	}
}