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path: root/MatrixUtils.RoomUpgradeCLI/Commands/ExecuteCommand.cs
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using System.Text.Json;
using System.Text.Json.Nodes;
using LibMatrix.Helpers;
using LibMatrix.Homeservers;

namespace MatrixUtils.RoomUpgradeCLI.Commands;

public class ExecuteCommand(ILogger<ExecuteCommand> logger, IHost host, RuntimeContext ctx, AuthenticatedHomeserverGeneric hs) : IHostedService {
    public async Task StartAsync(CancellationToken cancellationToken) {
        if (ctx.Args.Length <= 1) {
            await PrintHelp();
            return;
        }
        var filename = ctx.Args[1];
        if (filename.StartsWith("--")) {
            Console.WriteLine("Filename cannot start with --, please provide a valid filename.");
            await PrintHelp();
        }

        if (Directory.Exists(filename)) {
            await ExecuteDirectory(filename);
        }
        else if (File.Exists(filename)) {
            await ExecuteFile(filename);
        }
        else {
            Console.WriteLine($"File or directory {filename} does not exist.");
            await PrintHelp();
        }

        await host.StopAsync(cancellationToken);
    }

    public async Task ExecuteFile(string filename) {
        var rbj = await JsonSerializer.DeserializeAsync<JsonObject>(File.OpenRead(filename));
        var rb = rbj.ContainsKey(nameof(RoomUpgradeBuilder.OldRoomId))
            ? rbj.Deserialize<RoomUpgradeBuilder>()
            : rbj.Deserialize<RoomBuilder>();
        Console.WriteLine($"Executing room builder file of type {rb.GetType().Name}...");
        await rb!.Create(hs);
    }
    
    public async Task ExecuteDirectory(string dirName) {
        if (!Directory.Exists(dirName)) {
            Console.WriteLine($"Directory {dirName} does not exist.");
            return;
        }
        var files = Directory.GetFiles(dirName, "*.json");
        foreach (var file in files) {
            Console.WriteLine($"Executing file: {file}");
            await ExecuteFile(file);
        }
    }

    public async Task StopAsync(CancellationToken cancellationToken) { }

    private async Task PrintHelp() {
        Console.WriteLine("Usage: execute [filename]");
        Console.WriteLine("Options:");
        Console.WriteLine("  --help     Show this help message");
        await host.StopAsync();
    }
}