/*
 * Copyright (C) 2024 Jonni Liljamo <jonni@liljamo.com>
 *
 * This file is licensed under GPL-3.0-or-later, see NOTICE and LICENSE for
 * more information.
 */

package handlers

import (
	"fmt"
	"log/slog"
	"net/http"

	"git.src.quest/~liljamo/emerwen-web/internal/client"
	"git.src.quest/~liljamo/emerwen-web/internal/components"
	"git.src.quest/~liljamo/emerwen-web/internal/renderer"
	"github.com/gin-gonic/gin"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/status"
	"google.golang.org/protobuf/types/known/emptypb"
)

func handleClientError(c *gin.Context, err error) {
	if status, ok := status.FromError(err); ok {
		slog.Error("RPC error", slog.String("err", err.Error()))

		if status.Code() == codes.Unavailable {
			c.String(http.StatusInternalServerError, "RPC unavailable.")
			return
		}

		c.String(http.StatusInternalServerError, fmt.Sprintf("RPC error: %s", status.String()))
		return
	}

	slog.Error("Non-RPC error", slog.String("err", err.Error()))

	c.String(http.StatusInternalServerError, "Non-RPC error, see server logs.")
}

// PartialWorkers returns a gin handler for the partial workers route.
func PartialWorkers(client *client.Client) gin.HandlerFunc {
	return func(c *gin.Context) {
		response, err := client.Client.GetWorkers(client.Ctx, &emptypb.Empty{})
		if err != nil {
			handleClientError(c, err)
			return
		}

		r := renderer.New(BaseContext(c), http.StatusOK, components.PartialWorkers(response.Workers))
		c.Render(http.StatusOK, r)
	}
}