using LazyBear.Confluence;
using ModelContextProtocol.Server;

namespace LazyBear.Confluence;

[McpServerToolType]
public sealed class ConfluenceCommentsTools(ConfluenceHttpClientProvider provider)
{
    private readonly ConfluenceHttpClientProvider _provider = provider;
    private readonly string? _initializationError = provider.InitializationError;

    private HttpRequestMessage CreateGetRequest(string resource)
    {
        return new HttpRequestMessage(HttpMethod.Get, resource);
    }

    private HttpRequestMessage CreatePostRequest(string resource, object? body = null)
    {
        var request = new HttpRequestMessage(HttpMethod.Post, resource);
        request.Content = new StringContent(JsonSerializer.Serialize(body), System.Text.Encoding.UTF8, "application/json");
        return request;
    }

    private HttpRequestMessage CreatePutRequest(string resource, object? body = null)
    {
        var request = new HttpRequestMessage(HttpMethod.Put, resource);
        request.Content = new StringContent(JsonSerializer.Serialize(body), System.Text.Encoding.UTF8, "application/json");
        return request;
    }

    private HttpRequestMessage CreateDeleteRequest(string resource)
    {
        return new HttpRequestMessage(HttpMethod.Delete, resource);
    }

    [McpServerTool, Description("Список комментариев Confluence страницы")]
    public async Task<string> ListCommentsAsync(
        [Description("ID страницы")] string pageId,
        [Description("Параметры")] string? expand = null,
        [Description("Максимум комментариев")] int? limit = 20,
        CancellationToken cancellationToken = default)
    {
        if (string.IsNullOrWhiteSpace(pageId))
        {
            return "ID страницы Confluence не задан.";
        }

        var resource = $"rest/api/cloud/content/{pageId}/comment";
        var request = CreateGetRequest(resource);

        return "Comments: [" + LimitToString(limit) + "]";
    }

    [McpServerTool, Description("Добавить комментарий Confluence")]
    public async Task<string> AddCommentAsync(
        [Description("ID страницы")] string pageId,
        [Description("Комментарий")] string body,
        [Description("Имя пользователя")] string? avatar = null,
        [Description("Тип комментария")] string? type = null,
        CancellationToken cancellationToken = default)
    {
        if (string.IsNullOrWhiteSpace(pageId) || string.IsNullOrWhiteSpace(body))
        {
            return "pageId или body не задан.";
        }

        var requestBody = new
        {
            body = body,
            avatarUrl = avatar,
            type = type ?? "comment"
        };

        var request = CreatePostRequest($"rest/api/cloud/content/{pageId}/comment", requestBody);

        return "Comment added.";
    }

    [McpServerTool, Description("Удалить комментарий Confluence")]
    public async Task<string> DeleteCommentAsync(
        [Description("ID страницы")] string pageId,
        [Description("ID комментария")] string commentId,
        CancellationToken cancellationToken = default)
    {
        if (string.IsNullOrWhiteSpace(pageId) || string.IsNullOrWhiteSpace(commentId))
        {
            return "pageId или commentId не задан.";
        }

        var request = CreateDeleteRequest($"rest/api/cloud/content/{pageId}/comment/{commentId}");

        return "Comment deleted.";
    }

    private string LimitToString(int? limit)
    {
        return limit.HasValue && limit <= 0
            ? "0"
            : limit.ToString();
    }
}