package handler

import (
	"net/http"

	"github.com/gin-gonic/gin"

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

// HomeHandler serves GET /api/v1/home/* (DeviceAuth).
type HomeHandler struct {
	Svc *home.Service
}

// Register mounts home routes.
func (h *HomeHandler) Register(api *gin.RouterGroup) {
	g := api.Group("/home")
	g.GET("/tools", h.Tools)
	g.GET("/banners", h.Banners)
	g.GET("/feed-slots", h.FeedSlots)
	g.GET("/daily-tips", h.DailyTips)
}

func (h *HomeHandler) Tools(c *gin.Context) {
	items, err := h.Svc.ListPublic(c.Request.Context())
	if err != nil {
		response.Fail(c, http.StatusInternalServerError, 50030, "home tools failed")
		return
	}
	if items == nil {
		items = []repository.HomeTool{}
	}
	response.OK(c, gin.H{"items": items})
}

func (h *HomeHandler) Banners(c *gin.Context) {
	placement := c.DefaultQuery("placement", "home")
	items, err := h.Svc.ListPublicBanners(c.Request.Context(), placement)
	if err != nil {
		response.Fail(c, http.StatusInternalServerError, 50046, "home banners failed")
		return
	}
	response.OK(c, gin.H{"items": items})
}

func (h *HomeHandler) FeedSlots(c *gin.Context) {
	placement := c.DefaultQuery("placement", "home")
	items, err := h.Svc.ListPublicFeedSlots(c.Request.Context(), placement)
	if err != nil {
		response.Fail(c, http.StatusInternalServerError, 50049, "home feed slots failed")
		return
	}
	response.OK(c, gin.H{"items": items})
}

func (h *HomeHandler) DailyTips(c *gin.Context) {
	uid, _ := middleware.UserIDFromContext(c)
	tips, err := h.Svc.DailyTips(c.Request.Context(), uid)
	if err != nil {
		response.Fail(c, http.StatusInternalServerError, 50031, "daily tips failed")
		return
	}
	response.OK(c, tips)
}