using System.Text.Json;
using System.Text.Json.Serialization;

namespace WindowsGotify.Models;

public sealed class GotifyMessage
{
    [JsonPropertyName("id")]
    public long Id { get; set; }

    [JsonPropertyName("appid")]
    public long AppId { get; set; }

    [JsonPropertyName("message")]
    public string Message { get; set; } = "";

    [JsonPropertyName("title")]
    public string? Title { get; set; }

    [JsonPropertyName("priority")]
    public int Priority { get; set; }

    [JsonPropertyName("date")]
    public DateTimeOffset Date { get; set; }

    [JsonPropertyName("extras")]
    public Dictionary<string, JsonElement>? Extras { get; set; }

    [JsonIgnore]
    public string TitleDisplay =>
        string.IsNullOrWhiteSpace(Title) ? $"(App {AppId})" : Title!;

    [JsonIgnore]
    public string DateDisplay =>
        Date.ToLocalTime().ToString("yyyy-MM-dd HH:mm:ss");

    [JsonIgnore]
    public string PriorityDisplay => $"P{Priority}";

    /// <summary>
    /// 提取 Gotify extras 中的 client::notification.click.url(用于点击跳转)。
    /// </summary>
    [JsonIgnore]
    public string? ClickUrl
    {
        get
        {
            if (Extras is null) return null;
            try
            {
                if (!Extras.TryGetValue("client::notification", out var notif)) return null;
                if (notif.ValueKind != JsonValueKind.Object) return null;
                if (!notif.TryGetProperty("click", out var click)) return null;
                if (click.ValueKind != JsonValueKind.Object) return null;
                if (!click.TryGetProperty("url", out var url)) return null;
                if (url.ValueKind != JsonValueKind.String) return null;
                return url.GetString();
            }
            catch
            {
                return null;
            }
        }
    }
}

public sealed class GotifyMessagePage
{
    [JsonPropertyName("messages")]
    public List<GotifyMessage> Messages { get; set; } = new();

    [JsonPropertyName("paging")]
    public PagingInfo? Paging { get; set; }
}

public sealed class PagingInfo
{
    [JsonPropertyName("size")]
    public int Size { get; set; }

    [JsonPropertyName("limit")]
    public int Limit { get; set; }

    [JsonPropertyName("next")]
    public string? Next { get; set; }
}