// Package model define model struct of model runtime service
package model

import (
	"context"
	"errors"
	"fmt"
	"log"

	"modelRT/logger"
	"modelRT/orm"

	"gorm.io/gorm"
)

// TraverseAttributeGroupTables define func to traverse component attribute group tables
func TraverseAttributeGroupTables(ctx context.Context, db *gorm.DB) error {
	var tableNames []string

	result := db.Model(&orm.ProjectManager{}).Pluck("name", &tableNames)
	fmt.Println(result)
	if result.Error != nil && result.Error != gorm.ErrRecordNotFound {
		logger.Error(ctx, "query name column data from postgres table failed", "err", result.Error)
	}

	if len(tableNames) == 0 {
		logger.Info(ctx, "query from postgres successed, but no records found")
		return nil
	}

	for _, tableName := range tableNames {
		if tableName == "" {
			continue
		}

		var records []map[string]any
		err := db.Table(tableName).Find(&records).Error
		if err != nil && err != gorm.ErrRecordNotFound {
			logger.Error(ctx, fmt.Sprintf("query table '%s' data failed", tableName), "table_name", tableName, "err", err)
			return err
		}

		migrator := db.Migrator()

		if exists := migrator.HasTable(tableName); !exists {
			err := errors.New("can not find special table into database")
			logger.Error(ctx, "table does not exist in the database", "table _name", tableName, "error", err)
			return err
		}

		columnTypes, err := migrator.ColumnTypes(tableName)
		if err != nil {
			logger.Error(ctx, "retrieving column structure for table failed", "table _name", tableName, "error", err)
			return err
		}

		tableSchema := make(map[string]gorm.ColumnType)

		for _, col := range columnTypes {
			name := col.Name()
			dataType, _ := col.ColumnType()
			log.Printf("column: %s, Type: %s", name, dataType)
			if name != "id" {
				tableSchema[name] = col
			}
		}

		// TODO 将筛选后的属性值加入到缓存系统中
	}

	return nil
}