using NozCli.Core.Client;
using NozCli.Core.Config;
using NozCli.Core.Models;
using Spectre.Console;

namespace NozCli.Repl;

public static class ReplSession
{
    public static async Task RunAsync(LocalConfig config)
    {
        using var api = new NozApiClient(config);

        ServerCapabilities caps = default!;
        await AnsiConsole.Status().StartAsync("Connecting…", async _ =>
            caps = await api.GetConfigAsync());

        AnsiConsole.MarkupLine($"[bold green]noz[/] [dim]· {caps.Server}[/]");
        AnsiConsole.MarkupLine($"[dim]push={caps.AllowPush}  delete={caps.AllowDelete}  vault={caps.AllowVault}[/]\n");

        var ctx      = new ReplContext(api);
        var registry = new CommandRegistry();
        var input    = new ReplInput(registry);

        await AnsiConsole.Status().StartAsync("Loading notes…", async _ =>
            ctx.NoteCache = await api.GetNotesAsync());

        AnsiConsole.MarkupLine($"[dim]● {ctx.NoteCache.Count} notes cached[/]\n");
        input.SetContext(ctx);

        while (ctx.Running)
        {
            var prompt = $"[bold cyan]{ctx.CurrentPath}[/] [dim]»[/] ";
            var line   = input.Read(prompt);

            if (line is null) break; // Ctrl-C / Ctrl-D

            var parts = line.Trim().Split(' ', StringSplitOptions.RemoveEmptyEntries);
            if (parts.Length == 0) continue;

            var name = parts[0];
            var args = parts[1..];

            if (name is "exit" or "quit" or "q")
            {
                AnsiConsole.MarkupLine("[dim]Bye.[/]");
                break;
            }

            var cmd = registry.Find(name);
            if (cmd is null)
            {
                AnsiConsole.MarkupLine($"[red]Unknown command:[/] {name}  [dim](type 'help')[/]");
                continue;
            }

            try   { await cmd.ExecuteAsync(args, ctx); }
            catch (HttpRequestException ex) { AnsiConsole.MarkupLine($"[red]Server error:[/] {ex.Message}"); }
            catch (Exception ex)            { AnsiConsole.MarkupLine($"[red]Error:[/] {ex.Message}"); }
        }
    }
}