package definition

import (
	"git.sxidc.com/go-framework/baize/framework/core/infrastructure/database/clause"
	"git.sxidc.com/go-framework/baize/framework/core/tag/rule"
	"git.sxidc.com/go-tools/utils/reflectutils"
	"github.com/pkg/errors"
	"reflect"
)

type Operator struct {
	Name   string `json:"name"`
	CNName string `json:"cnName"`
}

const (
	opEqual              = "eq"
	opNotEqual           = "ne"
	opLessThan           = "lt"
	opLessThanOrEqual    = "lte"
	opGreaterThan        = "gt"
	opGreaterThanOrEqual = "gte"
	opIn                 = "in"
	opNotIn              = "not-in"
	opPrefix             = "prefix"
	opSuffix             = "suffix"
	opContains           = "contains"
)

func IsSupportedOperator(op string) bool {
	return op == opEqual || op == opNotEqual ||
		op == opLessThan || op == opLessThanOrEqual ||
		op == opGreaterThan || op == opGreaterThanOrEqual ||
		op == opIn || op == opNotIn ||
		op == opPrefix || op == opSuffix || op == opContains
}

var opTranslationMap = map[string]string{
	opEqual:              "等于",
	opNotEqual:           "不等于",
	opLessThan:           "小于",
	opLessThanOrEqual:    "小于等于",
	opGreaterThan:        "大于",
	opGreaterThanOrEqual: "大于等于",
	opIn:                 "包含在列表",
	opNotIn:              "不包含在列表",
	opPrefix:             "包含前缀",
	opSuffix:             "包含后缀",
	opContains:           "包含",
}

var (
	operatorEqual = Operator{
		Name:   opEqual,
		CNName: opTranslationMap[opEqual],
	}

	operatorNotEqual = Operator{
		Name:   opNotEqual,
		CNName: opTranslationMap[opNotEqual],
	}

	operatorLessThan = Operator{
		Name:   opLessThan,
		CNName: opTranslationMap[opLessThan],
	}

	operatorLessThanOrEqual = Operator{
		Name:   opLessThanOrEqual,
		CNName: opTranslationMap[opLessThanOrEqual],
	}

	operatorGreaterThan = Operator{
		Name:   opGreaterThan,
		CNName: opTranslationMap[opGreaterThan],
	}

	operatorGreaterThanOrEqual = Operator{
		Name:   opGreaterThanOrEqual,
		CNName: opTranslationMap[opGreaterThanOrEqual],
	}

	operatorIn = Operator{
		Name:   opIn,
		CNName: opTranslationMap[opIn],
	}

	operatorNotIn = Operator{
		Name:   opNotIn,
		CNName: opTranslationMap[opNotIn],
	}

	operatorPrefix = Operator{
		Name:   opPrefix,
		CNName: opTranslationMap[opPrefix],
	}

	operatorSuffix = Operator{
		Name:   opSuffix,
		CNName: opTranslationMap[opSuffix],
	}

	operatorContains = Operator{
		Name:   opContains,
		CNName: opTranslationMap[opContains],
	}
)

var operatorOfTypeMap = map[string][]Operator{
	rule.TypeString: {
		operatorEqual, operatorNotEqual, operatorIn, operatorNotIn, operatorPrefix, operatorSuffix, operatorContains,
	},
	rule.TypeTime: {
		operatorEqual, operatorNotEqual, operatorLessThan, operatorLessThanOrEqual, operatorGreaterThan, operatorGreaterThanOrEqual, operatorIn, operatorNotIn,
	},
	rule.TypeNumber: {
		operatorEqual, operatorNotEqual, operatorLessThan, operatorLessThanOrEqual, operatorGreaterThan, operatorGreaterThanOrEqual, operatorIn, operatorNotIn,
	},
	rule.TypeBool: {
		operatorEqual, operatorNotEqual,
	},
}

func AddCondition(conditions *clause.Conditions, op string, columnName string, value any) error {
	switch op {
	case opEqual:
		conditions.Equal(columnName, value)
	case opNotEqual:
		conditions.Not(columnName, value)
	case opLessThan:
		conditions.LessThan(columnName, value)
	case opLessThanOrEqual:
		conditions.LessThanAndEqual(columnName, value)
	case opGreaterThan:
		conditions.GreaterThan(columnName, value)
	case opGreaterThanOrEqual:
		conditions.GreaterThanAndEqual(columnName, value)
	case opIn:
		if reflect.TypeOf(value).Kind() != reflect.Slice {
			return errors.New("使用\"包含在列表\"操作符必须使用列表")
		}

		conditions.In(columnName, value)
	case opNotIn:
		if reflect.TypeOf(value).Kind() != reflect.Slice {
			return errors.New("使用\"不包含在列表\"操作符必须使用列表")
		}

		conditions.NotIn(columnName, value)
	case opPrefix:
		strValue, err := reflectutils.ToString(value)
		if err != nil {
			return err
		}

		conditions.Like(columnName, strValue+"%")
	case opSuffix:
		strValue, err := reflectutils.ToString(value)
		if err != nil {
			return err
		}

		conditions.Like(columnName, "%"+strValue)
	case opContains:
		strValue, err := reflectutils.ToString(value)
		if err != nil {
			return err
		}

		conditions.Like(columnName, "%"+strValue+"%")
	default:
		return errors.Errorf("不支持的操作符%v", op)
	}

	return nil
}