package servicemanagement

import (
	"context"
	"fmt"

	"git.x2erp.com/qdy/go-base/ctx"
	"git.x2erp.com/qdy/go-base/logger"
	"git.x2erp.com/qdy/go-base/model/response"
	"git.x2erp.com/qdy/go-base/util"
	"git.x2erp.com/qdy/go-db/factory/database"
)

// ServiceConfig 微服务配置项
type ServiceConfig struct {
	ID          string `json:"id"`
	ServiceName string `json:"service_name"`
	ConfigName  string `json:"config_name"`
	YamlName    string `json:"yaml_name"`
	YamlValue   string `json:"yaml_value"`
	Creator     string `json:"creator,omitempty"`
	CreatedAt   string `json:"created_at,omitempty"`
}

// GetServiceConfigs 获取微服务配置项
func GetServiceConfigs(ctx context.Context, dbFactory *database.DBFactory, serviceName string, reqCtx *ctx.RequestContext) *response.QueryResult[[]ServiceConfig] {
	logger.Debug(fmt.Sprintf("GetServiceConfigs-开始获取微服务配置项: %s", serviceName))

	// 获取数据库连接
	db := dbFactory.GetDB()

	// 查询指定微服务的所有配置
	query := `
		SELECT 
			id,
			service_name,
			config_name,
			yaml_name,
			yaml_value,
			creator,
			created_at
		FROM config_startup_svc 
		WHERE service_name = ?
		ORDER BY config_name, yaml_name
	`

	rows, err := db.QueryxContext(ctx, query, serviceName)
	if err != nil {
		logger.ErrorC(reqCtx, fmt.Sprintf("查询微服务配置失败: %v", err))
		return util.CreateErrorResult[[]ServiceConfig](fmt.Sprintf("查询微服务配置失败: %v", err), reqCtx)
	}
	defer rows.Close()

	var configs []ServiceConfig
	for rows.Next() {
		var config ServiceConfig
		var creator, createdAt interface{}

		err := rows.Scan(&config.ID, &config.ServiceName, &config.ConfigName, &config.YamlName, &config.YamlValue, &creator, &createdAt)
		if err != nil {
			logger.ErrorC(reqCtx, fmt.Sprintf("扫描微服务配置数据失败: %v", err))
			continue
		}

		// 处理可能为nil的字段
		if creator != nil {
			config.Creator = fmt.Sprintf("%v", creator)
		}
		if createdAt != nil {
			config.CreatedAt = fmt.Sprintf("%v", createdAt)
		}

		configs = append(configs, config)
	}

	if err := rows.Err(); err != nil {
		logger.ErrorC(reqCtx, fmt.Sprintf("遍历微服务配置数据失败: %v", err))
		return util.CreateErrorResult[[]ServiceConfig](fmt.Sprintf("遍历微服务配置数据失败: %v", err), reqCtx)
	}

	logger.Debug(fmt.Sprintf("获取到微服务 %s 的 %d 个配置项", serviceName, len(configs)))
	return util.CreateSuccessResultData[[]ServiceConfig](configs, reqCtx)
}