package handlers

import (
	"net/http"
	"strconv"

	"github.com/gin-gonic/gin"
	"github.com/patbritton/sojorn-backend/internal/repository"
)

type NotificationHandler struct {
	repo *repository.NotificationRepository
}

func NewNotificationHandler(repo *repository.NotificationRepository) *NotificationHandler {
	return &NotificationHandler{repo: repo}
}

func (h *NotificationHandler) GetNotifications(c *gin.Context) {
	userIdStr, exists := c.Get("user_id")
	if !exists {
		c.JSON(http.StatusUnauthorized, gin.H{"error": "Unauthorized"})
		return
	}

	limit := 20
	offset := 0

	if l := c.Query("limit"); l != "" {
		if val, err := strconv.Atoi(l); err == nil {
			limit = val
		}
	}
	if o := c.Query("offset"); o != "" {
		if val, err := strconv.Atoi(o); err == nil {
			offset = val
		}
	}

	notifications, err := h.repo.GetNotifications(c.Request.Context(), userIdStr.(string), limit, offset)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to fetch notifications"})
		return
	}

	c.JSON(http.StatusOK, notifications)
}