package handler

import (
	"errors"
	"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/admin"
	"github.com/yuxingu/digital-psychology/apps/api/pkg/response"
)

func (h *AdminHandler) registerFunnelDefinitions(authed *gin.RouterGroup) {
	g := authed.Group("/analytics")
	g.GET("/funnel-definitions", middleware.RequireAdminPermission(h.Svc, admin.PermGrowthRead), h.ListFunnelDefinitions)
	g.GET("/funnel-definitions/:id", middleware.RequireAdminPermission(h.Svc, admin.PermGrowthRead), h.GetFunnelDefinition)
}

func (h *AdminHandler) ListFunnelDefinitions(c *gin.Context) {
	items, err := h.Svc.ListFunnelDefinitions(c.Request.Context())
	if err != nil {
		response.Fail(c, http.StatusInternalServerError, 50050, "list funnel-definition failed")
		return
	}
	response.OK(c, gin.H{"items": items})
}

func (h *AdminHandler) GetFunnelDefinition(c *gin.Context) {
	id, err := uuid.Parse(c.Param("id"))
	if err != nil {
		response.Fail(c, http.StatusBadRequest, 40002, "invalid id")
		return
	}
	row, err := h.Svc.GetFunnelDefinition(c.Request.Context(), id)
	if errors.Is(err, admin.ErrFunnelDefinitionNotFound) {
		response.Fail(c, http.StatusNotFound, 40420, "funnel-definition not found")
		return
	}
	if err != nil {
		response.Fail(c, http.StatusInternalServerError, 50051, "get funnel-definition failed")
		return
	}
	response.OK(c, row)
}