package handler

import (
	"net/http"

	"github.com/gin-gonic/gin"
	"github.com/google/uuid"

	"github.com/yuxingu/digital-psychology/apps/api/internal/middleware"
	"github.com/yuxingu/digital-psychology/apps/api/internal/service/relation"
	"github.com/yuxingu/digital-psychology/apps/api/pkg/response"
)

// RelationHandler exposes 关系理解 APIs.
type RelationHandler struct {
	Svc *relation.Service
}

// Register mounts routes.
func (h *RelationHandler) Register(rg *gin.RouterGroup) {
	rg.POST("/relation/insight", h.Create)
}

// Create handles POST /relation/insight.
func (h *RelationHandler) Create(c *gin.Context) {
	userID, ok := middleware.UserIDFromContext(c)
	if !ok {
		response.Fail(c, http.StatusUnauthorized, 40100, "unauthorized")
		return
	}
	var req struct {
		ProfileAID string `json:"profile_a_id" binding:"required"`
		ProfileBID string `json:"profile_b_id" binding:"required"`
	}
	if err := c.ShouldBindJSON(&req); err != nil {
		response.Fail(c, http.StatusBadRequest, 10000, "invalid request")
		return
	}
	aID, err := uuid.Parse(req.ProfileAID)
	if err != nil {
		response.Fail(c, http.StatusBadRequest, 10000, "invalid profile_a_id")
		return
	}
	bID, err := uuid.Parse(req.ProfileBID)
	if err != nil {
		response.Fail(c, http.StatusBadRequest, 10000, "invalid profile_b_id")
		return
	}
	out, err := h.Svc.Create(c.Request.Context(), userID, aID, bID)
	if err != nil {
		response.Fail(c, http.StatusBadRequest, 30005, err.Error())
		return
	}
	response.OK(c, out)
}