using System.Buffers.Text;
using System.Security.Cryptography;
using ArcaneLibs.Extensions;
using LibMatrix;
using LibMatrix.EventTypes.Spec;
using LibMatrix.Helpers;
using LibMatrix.Services;
using LibMatrix.Utilities.Bot.Interfaces;
using ModerationBot.AccountData;
using ModerationBot.StateEventTypes;

namespace ModerationBot.Commands;

public class JoinRoomCommand(IServiceProvider services, HomeserverProviderService hsProvider, HomeserverResolverService hsResolver, PolicyEngine engine) : ICommand {
    public string Name { get; } = "join";
    public string Description { get; } = "Join arbitrary rooms";

    public async Task<bool> CanInvoke(CommandContext ctx) {
        //check if user is admin in control room
        var botData = await ctx.Homeserver.GetAccountDataAsync<BotData>("gay.rory.moderation_bot_data");
        var controlRoom = ctx.Homeserver.GetRoom(botData.ControlRoom);
        var isAdmin = (await controlRoom.GetPowerLevelsAsync())!.UserHasPermission(ctx.MessageEvent.Sender, "m.room.ban");
        if (!isAdmin) {
            // await ctx.Reply("You do not have permission to use this command!");
            await ctx.Homeserver.GetRoom(botData.LogRoom!).SendMessageEventAsync(
                new RoomMessageEventContent(body: $"User {ctx.MessageEvent.Sender} tried to use command {Name} but does not have permission!", messageType: "m.text"));
        }

        return isAdmin;
    }

    public async Task Invoke(CommandContext ctx) {
        
        var botData = await ctx.Homeserver.GetAccountDataAsync<BotData>("gay.rory.moderation_bot_data");
        var policyRoom = ctx.Homeserver.GetRoom(botData.DefaultPolicyRoom ?? botData.ControlRoom);
        var logRoom = ctx.Homeserver.GetRoom(botData.LogRoom ?? botData.ControlRoom);

        await logRoom.SendMessageEventAsync(MessageFormatter.FormatSuccess($"Joining room {ctx.Args[0]} with reason: {string.Join(' ', ctx.Args[1..])}"));
        var roomId = ctx.Args[0];
        var servers = new List<string>() {ctx.Homeserver.ServerName};
        if (roomId.StartsWith('[')) {
            
        }

        if (roomId.StartsWith('#')) {
            var res = await ctx.Homeserver.ResolveRoomAliasAsync(roomId);
            roomId = res.RoomId;
            servers.AddRange(servers);
        }

        await ctx.Homeserver.JoinRoomAsync(roomId, servers, string.Join(' ', ctx.Args[1..]));
        await logRoom.SendMessageEventAsync(MessageFormatter.FormatSuccess($"Resolved room {ctx.Args[0]} to {roomId} with servers: {string.Join(", ", servers)}"));
    }
}