using System.Text.Json;
using Microsoft.AspNetCore.Mvc;
using WebClientTpos.Server.Infrastructure;

namespace WebClientTpos.Server.Controllers;

/// <summary>
/// EN: Shop management controller — proxies to MerchantService for shop CRUD, settings, stats, devices.
/// VI: Controller quản lý cửa hàng — proxy đến MerchantService cho CRUD shop, settings, stats, devices.
/// </summary>
[ApiController]
[Route("api/bff")]
public class ShopController : ControllerBase
{
    private readonly HttpClient _merchant;

    public ShopController(IHttpClientFactory httpClientFactory)
    {
        _merchant = httpClientFactory.CreateClient("MerchantService");
    }

    /// <summary>
    /// EN: Get all shops belonging to the current merchant.
    /// VI: Lấy tất cả cửa hàng thuộc merchant hiện tại.
    /// </summary>
    [HttpGet("shops")]
    public Task<IActionResult> GetShops() =>
        _merchant.GetAsync("/api/v1/shops").ProxyAsync();

    /// <summary>
    /// EN: Get shop by ID.
    /// VI: Lấy cửa hàng theo ID.
    /// </summary>
    [HttpGet("shops/{shopId:guid}")]
    public Task<IActionResult> GetShopById(Guid shopId) =>
        _merchant.GetAsync($"/api/v1/shops/{shopId}").ProxyAsync();

    /// <summary>
    /// EN: Update shop info.
    /// VI: Cập nhật thông tin cửa hàng.
    /// </summary>
    [HttpPut("shops/{shopId:guid}")]
    public Task<IActionResult> UpdateShop(Guid shopId, [FromBody] JsonElement body) =>
        _merchant.PutAsJsonAsync($"/api/v1/shops/{shopId}", body).ProxyAsync();

    /// <summary>
    /// EN: Get shop settings.
    /// VI: Lấy cài đặt cửa hàng.
    /// </summary>
    [HttpGet("shops/{shopId:guid}/settings")]
    public Task<IActionResult> GetShopSettings(Guid shopId) =>
        _merchant.GetAsync($"/api/v1/shops/{shopId}/settings").ProxyAsync();

    /// <summary>
    /// EN: Update shop settings.
    /// VI: Cập nhật cài đặt cửa hàng.
    /// </summary>
    [HttpPut("shops/{shopId:guid}/settings")]
    public Task<IActionResult> UpdateShopSettings(Guid shopId, [FromBody] JsonElement body) =>
        _merchant.PutAsJsonAsync($"/api/v1/shops/{shopId}/settings", body).ProxyAsync();

    /// <summary>
    /// EN: Get aggregated stats per shop.
    /// VI: Lấy thống kê tổng hợp theo shop.
    /// </summary>
    [HttpGet("shops/stats")]
    public Task<IActionResult> GetShopStats() =>
        _merchant.GetAsync("/api/v1/shops/stats").ProxyAsync();

    /// <summary>
    /// EN: Get device tokens registered for this merchant's staff.
    /// VI: Lấy danh sách device token đã đăng ký cho nhân viên của merchant.
    /// </summary>
    [HttpGet("devices")]
    public Task<IActionResult> GetDevices() =>
        _merchant.GetAsync("/api/v1/devices").ProxyAsync();
}