package impl

import (
	"database/sql/driver"
	"encoding/json"
	"strings"
)

type StringArray []string

func (v *StringArray) Scan(value interface{}) error {
	//判断类型
	switch data := value.(type) {
	case []byte:
		return json.Unmarshal(data, v)
	case string:
		return json.Unmarshal([]byte(data), v)
	case nil:
		return nil
	}
	return json.Unmarshal(value.([]byte), v)
}

func (v StringArray) Value() (driver.Value, error) {
	return json.Marshal(v)
}

func (v StringArray) RemoveDuplicates() StringArray {
	newArr := make([]string, 0)
	for i := 0; i < len(v); i++ {
		repeat := false
		for j := i + 1; j < len(v); j++ {
			if v[i] == v[j] {
				repeat = true
				break
			}
		}
		if !repeat {
			newArr = append(newArr, v[i])
		}
	}
	return newArr
}

func (v StringArray) RemoveEmpty() StringArray {
	return v.RemoveValue("")
}

func (v StringArray) RemoveValue(value string) StringArray {
	newArr := make([]string, 0)
	for i := 0; i < len(v); i++ {
		if !strings.EqualFold(v[i], value) {
			newArr = append(newArr, v[i])
		}
	}
	return newArr
}

func (v StringArray) Contains(str string) bool {
	for _, i := range v {
		if i == str {
			return true
		}
	}
	return false
}

func (v StringArray) Eq(strArr []string) bool {
	if len(v) != len(strArr) {
		return false
	}
	for _, i := range strArr {
		//只要有一个不包含就是不一样的
		if v.Contains(i) == false {
			return false
		}
	}
	return true
}

func (v StringArray) ToStringSlice() []string {
	out := make([]string, 0)
	for _, i := range v {
		out = append(out, i)
	}
	return out
}