package router

import (
	"encoding/json"
	"net/http"
	"strings"

	"chatapp3-golang/internal/config"
	"chatapp3-golang/internal/service/gameopen"

	"github.com/gin-gonic/gin"
)

// registerGameOpenRoutes 注册统一三方游戏回调接口。
func registerGameOpenRoutes(engine *gin.Engine, cfg config.Config, service *gameopen.GameOpenService) {
	if service == nil {
		return
	}

	callbackGroup := engine.Group("/game/open")
	callbackGroup.POST("/user-info", func(c *gin.Context) {
		raw, _ := c.GetRawData()
		var req gameopen.QueryUserRequest
		if err := json.Unmarshal(raw, &req); err != nil {
			c.JSON(http.StatusOK, gameopen.CallbackResponse{ErrorCode: 4001, ErrorMsg: err.Error()})
			return
		}
		c.JSON(http.StatusOK, service.HandleQueryUser(c.Request.Context(), req, string(raw)))
	})
	callbackGroup.POST("/update-coin", func(c *gin.Context) {
		raw, _ := c.GetRawData()
		var req gameopen.UpdateCoinRequest
		if err := json.Unmarshal(raw, &req); err != nil {
			c.JSON(http.StatusOK, gameopen.CallbackResponse{ErrorCode: 4001, ErrorMsg: err.Error()})
			return
		}
		c.JSON(http.StatusOK, service.HandleUpdateCoin(c.Request.Context(), req, string(raw)))
	})
	callbackGroup.POST("/supplement", func(c *gin.Context) {
		raw, _ := c.GetRawData()
		var req gameopen.SupplementRequest
		if err := json.Unmarshal(raw, &req); err != nil {
			c.JSON(http.StatusOK, gameopen.CallbackResponse{ErrorCode: 4001, ErrorMsg: err.Error()})
			return
		}
		c.JSON(http.StatusOK, service.HandleSupplement(c.Request.Context(), req, string(raw)))
	})

	internalGroup := engine.Group("/internal/game/open")
	internalGroup.Use(internalSecretMiddleware(cfg.HTTP.InternalCallbackSecret))
	internalGroup.GET("/info", func(c *gin.Context) {
		resp, err := service.GetIntegrationInfo(c.Request.Context(), resolvePublicBaseURL(c, cfg))
		if err != nil {
			writeError(c, err)
			return
		}
		writeOK(c, resp)
	})
}

func resolvePublicBaseURL(c *gin.Context, cfg config.Config) string {
	if value := strings.TrimRight(strings.TrimSpace(cfg.GameOpen.PublicBaseURL), "/"); value != "" {
		return value
	}
	scheme := "http"
	if forwarded := strings.TrimSpace(c.GetHeader("X-Forwarded-Proto")); forwarded != "" {
		scheme = forwarded
	} else if c.Request.TLS != nil {
		scheme = "https"
	}
	host := strings.TrimSpace(c.GetHeader("X-Forwarded-Host"))
	if host == "" {
		host = strings.TrimSpace(c.Request.Host)
	}
	if host == "" {
		return ""
	}
	return scheme + "://" + host
}