package api

import (
	"context"
	"net/http"
	"strconv"
	"time"

	"github.com/TopherMayor/unified-media-manager/internal/service"
	"github.com/labstack/echo/v4"
)

func listTags(svc *service.TagService) echo.HandlerFunc {
	return func(c echo.Context) error {
		ctx, cancel := context.WithTimeout(c.Request().Context(), 10*time.Second)
		defer cancel()

		tags, err := svc.List(ctx)
		if err != nil {
			return c.JSON(http.StatusInternalServerError, map[string]string{"error": err.Error()})
		}
		if tags == nil {
			tags = []service.Tag{}
		}
		return c.JSON(http.StatusOK, tags)
	}
}

func createTag(svc *service.TagService) echo.HandlerFunc {
	return func(c echo.Context) error {
		ctx, cancel := context.WithTimeout(c.Request().Context(), 5*time.Second)
		defer cancel()

		var req service.CreateTagRequest
		if err := c.Bind(&req); err != nil {
			return c.JSON(http.StatusBadRequest, map[string]string{"error": err.Error()})
		}

		id, err := svc.Create(ctx, req)
		if err != nil {
			return c.JSON(http.StatusInternalServerError, map[string]string{"error": err.Error()})
		}

		return c.JSON(http.StatusCreated, map[string]int64{"id": id})
	}
}

func deleteTag(svc *service.TagService) echo.HandlerFunc {
	return func(c echo.Context) error {
		ctx, cancel := context.WithTimeout(c.Request().Context(), 5*time.Second)
		defer cancel()

		id, err := strconv.ParseInt(c.Param("id"), 10, 64)
		if err != nil {
			return c.JSON(http.StatusBadRequest, map[string]string{"error": "invalid id"})
		}

		if err := svc.Delete(ctx, id); err != nil {
			if err.Error() == "tag not found" {
				return c.JSON(http.StatusNotFound, map[string]string{"error": err.Error()})
			}
			return c.JSON(http.StatusInternalServerError, map[string]string{"error": err.Error()})
		}

		return c.JSON(http.StatusOK, map[string]string{"status": "deleted"})
	}
}
