// Package response ...
//
// Description : response ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 2022-06-25 20:52
package response

import (
	"fmt"
	"net/http"
	"runtime"
	"strconv"
	"strings"
	"time"

	"git.zhangdeman.cn/zhangdeman/exception"
	"git.zhangdeman.cn/zhangdeman/gin/define"
	"github.com/gin-gonic/gin"
)

const (
	// hasSendResponseFlag 已经发送响应数据的标识, 一旦识别到, 重复调用不会执行
	hasSendResponseFlag = "GIN_PKG_HAS_SEND_RESPONSE"
)

var (
	// 成功的业务状态码
	successBusinessCode any = "200"
)

// SetBusinessSuccessCode 设置成状态码
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 17:01 2024/8/17
func SetBusinessSuccessCode(code any) {
	successBusinessCode = code
}

// Success 成功的响应
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 22:37 2022/6/25
func Success(ctx *gin.Context, data any) {
	successException := exception.NewSuccess(data)
	Send(ctx, successException.GetCode(), successException.GetHttpCode(), successException.GetData(), nil)
}

// SuccessWithExtension 返回扩展数据
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 14:52 2024/9/24
func SuccessWithExtension(ctx *gin.Context, data any, extension map[string]any) {
	successException := exception.NewSuccess(data)
	Send(ctx, successException.GetCode(), successException.GetHttpCode(), successException.GetData(), extension)
}

// Send 基础的发送数据
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 22:40 2022/6/25
func Send(ctx *gin.Context, code any, httpCode int, data any, extension map[string]any) {
	// 设置请求是否成功的标识
	ctx.Set(define.GetHttpHandleConfig().RequestIsSuccessField, fmt.Sprintf("%v", code) == fmt.Sprintf("%v", successBusinessCode))
	if ctx.GetBool(hasSendResponseFlag) {
		// 已经发送过数据, 后面在发送数据, 不执行
		return
	}
	finishRequestTime := time.Now().UnixMilli()
	// 设置数据已发送的标识
	defer ctx.Set(hasSendResponseFlag, true)
	responseConfig := define.GetHttpHandleConfig()
	responseData := map[string]any{
		responseConfig.ResponseCodeField:      code,
		responseConfig.ResponseMessageField:   exception.GetMessage(code),
		responseConfig.ResponseTraceIDField:   ctx.GetString(responseConfig.ResponseTraceIDField),
		responseConfig.ResponseDataField:      data,
		responseConfig.HandleRequestCostField: finishRequestTime - ctx.GetInt64(responseConfig.StartRequestTimeField),
	}
	if responseConfig.EnableExtensionOutput && nil != extension {
		responseData[responseConfig.ExtensionOutputField] = extension
	}
	// 记录完成时间
	ctx.Set(responseConfig.FinishRequestTimeField, finishRequestTime)
	ctx.Set(responseConfig.ResponseDataField, responseData)
	responseException := exception.New(code, httpCode, responseData)
	ctx.JSON(responseException.GetHttpCode(), responseException.GetData())
}

// SendWithStatusOK ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 22:41 2022/6/25
func SendWithStatusOK(ctx *gin.Context, code any, data any) {
	Send(ctx, code, http.StatusOK, data, nil)
}

// SendWithException 使用exception发送数据
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 13:08 2022/6/26
func SendWithException(ctx *gin.Context, e exception.IException, data any) {
	if nil == e {
		e = exception.NewSuccess(data)
	}
	if !define.GetHttpHandleConfig().DisableDebugStackOutput {
		pcs := make([]uintptr, 128)
		n := runtime.Callers(2, pcs)

		frames := runtime.CallersFrames(pcs[:n])

		var sb strings.Builder
		for {
			frame, more := frames.Next()

			sb.WriteString(frame.Function)
			sb.WriteByte('\n')
			sb.WriteByte('\t')
			sb.WriteString(frame.File)
			sb.WriteByte(':')
			sb.WriteString(strconv.Itoa(frame.Line))
			sb.WriteByte('\n')

			if !more {
				break
			}
		}
		fmt.Println(sb.String())
	}
	outputData := map[string]any{
		"e_data":   e.GetData(),
		"u_e_data": data,
	}
	Send(ctx, e.GetCode(), e.GetHttpCode(), outputData, nil)
}

// JSON ctx.JSON 的平替, 增加了数据是否已相应的标识
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 14:51 2023/2/15
func JSON(ctx *gin.Context, httpCode int, data any) {
	if ctx.GetBool(hasSendResponseFlag) {
		// 已经发送过数据, 后面在发送数据, 不执行
		return
	}
	// 设置数据已发送的标识
	defer ctx.Set(hasSendResponseFlag, true)
	ctx.JSON(httpCode, data)
}