package pkg

import (
	"bytes"
	"encoding/json"
	"fmt"
	"gitea.cdlsxd.cn/self-tools/tysk/tysk_constant"
	"github.com/clbanning/mxj"
	"reflect"
	"strconv"
	"strings"
)

// XmlRequest 定义请求结构
type XmlRequest struct {
	Action      tysk_constant.RequestCode `xml:"action"`
	UserName    string                    `xml:"userName"`
	ExtraFields map[string]interface{}    `xml:"-"` // 忽略此字段，手动处理
}

// MarshalToXML 将XmlRequest转换为指定格式的XML字节流
func (req XmlRequest) MarshalToXML() ([]byte, error) {
	var buf bytes.Buffer

	// 写入XML声明
	buf.WriteString(`<?xml version="1.0" encoding="GBK"?>` + "\n")
	buf.WriteString("<stream>\n")

	// 写入基本字段
	buf.WriteString(fmt.Sprintf("<action>%s</action>\n", req.Action))
	buf.WriteString(fmt.Sprintf("<userName>%s</userName>\n", req.UserName))

	// 处理ExtraFields
	for key, value := range req.ExtraFields {
		switch v := value.(type) {
		case []map[string]interface{}:
			// 处理列表数据
			buf.WriteString(fmt.Sprintf("<list name=\"%s\">\n", key))
			for _, row := range v {
				if len(row) == 0 {
					continue
				}
				buf.WriteString("<row>\n")
				for rowKey, rowValue := range row {
					buf.WriteString(fmt.Sprintf("<%s>%s</%s>\n", rowKey, ToString(rowValue), rowKey))
				}
				buf.WriteString("</row>\n")
			}
			buf.WriteString("</list>\n")

		case []string:
			// 处理列表数据
			buf.WriteString(fmt.Sprintf("<list name=\"%s\">\n", key))
			buf.WriteString("<row>\n")
			for _, row := range v {
				buf.WriteString(fmt.Sprintf("<%s>%s</%s>\n", key, row, key))
			}
			buf.WriteString("</row>\n")
			buf.WriteString("</list>\n")
		case []interface{}:
			// 处理列表数据
			buf.WriteString(fmt.Sprintf("<list name=\"%s\">\n", key))

			for _, row := range v {
				buf.WriteString("<row>\n")
				if vmap, isMapList := row.(map[string]interface{}); isMapList {
					for rowKey, rowValue := range vmap {
						buf.WriteString(fmt.Sprintf("<%s>%v</%s>\n", rowKey, rowValue, rowKey))
					}
				}
				buf.WriteString("</row>\n")
			}

			buf.WriteString("</list>\n")
		case map[string]interface{}:
			// 处理列表数据
			buf.WriteString(fmt.Sprintf("<list name=\"%s\">\n", key))

			for rowKey, row := range v {
				switch row.(type) {
				case []interface{}:
					for _, rowValue := range row.([]interface{}) {
						buf.WriteString("<row>\n")
						buf.WriteString(fmt.Sprintf("<%s>%s</%s>\n", rowKey, rowValue, rowKey))
						buf.WriteString("</row>\n")
					}
				default:
					buf.WriteString("<row>\n")
					buf.WriteString(fmt.Sprintf("<%s>%s</%s>\n", key, row, key))
					buf.WriteString("</row>\n")
				}
			}

			buf.WriteString("</list>\n")
			// 可以根据需要添加其他类型的处理
		default:
			buf.WriteString(fmt.Sprintf("<%s>%s</%s>\n", key, ToString(v), key))
		}
	}

	buf.WriteString("</stream>")
	return buf.Bytes(), nil
}

func XMLToByte(xmlBytes []byte) ([]byte, error) {
	// 去掉XML声明
	if idx := bytes.Index(xmlBytes, []byte("?>")); idx != -1 {
		xmlBytes = xmlBytes[idx+2:]
	}
	// 解析XML
	mv, err := mxj.NewMapXml(xmlBytes)
	if err != nil {
		return nil, fmt.Errorf("XML 解析失败: %v", err)
	}
	// 获取stream节点
	stream, ok := mv["stream"].(map[string]interface{})
	if !ok {
		return nil, fmt.Errorf("无效的XML结构: 缺少stream节点")
	}
	// 处理list节点
	if lists, ok := stream["list"]; ok {
		switch lists.(type) {
		case []interface{}:
			for _, listItem := range lists.([]interface{}) {
				if listMap, ok := listItem.(map[string]interface{}); ok {
					// 获取name属性
					if name, ok := listMap["-name"].(string); ok && name != "" {
						// 用name作为key，替换原来的list数组
						if rowList, ok := listMap["row"].(map[string]interface{}); ok {
							stream[name] = []map[string]interface{}{rowList}
						} else {
							stream[name] = listMap["row"]
						}

					}
				}
			}
		case map[string]interface{}:
			listMap := lists.(map[string]interface{})
			if name, ok := listMap["-name"].(string); ok && name != "" {
				// 用name作为key，替换原来的list数组
				if rowList, ok := listMap["row"].(map[string]interface{}); ok {
					stream[name] = []map[string]interface{}{rowList}
				} else {
					stream[name] = listMap["row"]
				}

			}

		default:
		}

		// 删除原始的list节点
		delete(stream, "list")
	}
	// 转换为JSON
	jsonData, err := json.Marshal(stream)
	if err != nil {
		return nil, fmt.Errorf("JSON序列化失败: %v", err)
	}

	return jsonData, nil
}

func SliceToMap(list []interface{}) (listMap []map[string]interface{}) {
	listMap = make([]map[string]interface{}, len(list))
	//for _, accountNo := range list {
	//	listMap = append(list, map[string]interface{}{"accountNo": accountNo})
	//}
	return
}

func IsStruct(v interface{}) bool {
	if v == nil {
		return false
	}
	t := reflect.TypeOf(v)
	if t.Kind() == reflect.Ptr {
		t = t.Elem()
	}
	return t.Kind() == reflect.Struct
}

// StructToMap 将一个struct转换为map[string]interface{}
func StructToMap(obj interface{}) map[string]interface{} {
	// 获取obj的类型
	val := reflect.ValueOf(obj)
	if val.Kind() == reflect.Ptr {
		val = val.Elem()
	}

	// 确保obj是一个struct
	if val.Kind() != reflect.Struct {
		return nil
	}

	// 创建一个map来保存结果
	data := make(map[string]interface{})

	// 遍历struct的字段
	for i := 0; i < val.NumField(); i++ {
		// 获取字段的类型和值
		valueField := val.Field(i)
		typeField := val.Type().Field(i)
		jsonTag := typeField.Tag.Get("json")
		if idx := strings.Index(jsonTag, ","); idx != -1 {
			// 如果有逗号，则取逗号之前的部分
			jsonTag = jsonTag[:idx]
		}
		// 忽略未导出的字段（字段名首字母小写）
		if !typeField.IsExported() {
			continue
		}

		// 将字段名和值添加到map中
		data[jsonTag] = valueField.Interface()
	}

	return data
}

func ToString(v interface{}) string {
	switch v := v.(type) {
	case int:
		return strconv.Itoa(v)
	case float64:
		return strconv.FormatFloat(v, 'f', -1, 64)
	case bool:
		return strconv.FormatBool(v)
	case string:
		return v
	case fmt.Stringer: // 实现了 String() 接口的类型
		return v.String()
	default:
		return fmt.Sprintf("%v", v) // 其他类型 fallback
	}
}

// BuildNestedMap 通用方法：根据动态路径（如 "userDataList.rcptNum"）构造嵌套 map
func BuildNestedMap(path string, value interface{}) (map[string]interface{}, string) {
	keys := strings.Split(path, ".")
	result := make(map[string]interface{})
	current := result

	// 迭代处理每一级 key
	for i, key := range keys {
		if i == len(keys)-1 {
			// 最后一层，赋值
			current[key] = value
		} else {
			// 非最后一层，创建嵌套 map
			newMap := make(map[string]interface{})
			current[key] = newMap
			current = newMap
		}
	}

	return result, keys[0]
}