package sql

import (
	"git.sxidc.com/go-tools/utils/reflectutils"
	"git.sxidc.com/service-supports/fserr"
	"reflect"
	"strings"
	"time"
)

const (
	timeWriteFormat = time.DateTime + ".000000 +08:00"
)

var keyWordsMap = map[string]any{}

func toSqlValue(value any) (string, error) {
	if value == nil {
		return "", nil
	}

	valueValue := reflect.ValueOf(value)

	if valueValue.Kind() == reflect.Slice {
		return "", fserr.New("请使用toSqlValues处理slice类型")
	}

	switch v := reflectutils.PointerValueElem(valueValue).Interface().(type) {
	case string:
		return "'" + v + "'", nil
	case time.Time:
		return "'" + v.Format(timeWriteFormat) + "'", nil
	default:
		retStr := new(string)
		err := reflectutils.AssignStringValue(v, reflect.ValueOf(retStr).Elem())
		if err != nil {
			return "", err
		}

		return *retStr, nil
	}
}

func toSqlValues(values any) (string, error) {
	if values == nil {
		return "()", nil
	}

	sliceValue := reflect.ValueOf(values)

	if sliceValue.IsZero() {
		return "()", nil
	}

	if sliceValue.Kind() != reflect.Slice {
		return "", fserr.New("传递的不是slice")
	}

	parsedValues := make([]string, 0)
	for i := 0; i < sliceValue.Len(); i++ {
		value := sliceValue.Index(i).Interface()
		parsedValue, err := toSqlValue(value)
		if err != nil {
			return "", err
		}

		parsedValues = append(parsedValues, parsedValue)
	}

	if len(parsedValues) == 0 {
		return "()", nil
	}

	return "(" + strings.Join(parsedValues, ",") + ")", nil
}