using System.Text.Json;
using ClawdDotNet.Core.Storage;
using ClawdDotNet.Core.Tasks;
using ClawdDotNet.Core.Tools;
using ClawdDotNet.Tools.Taskboard;
using ClawdDotNet.Tools.Tests.FileRW;
using Microsoft.Extensions.Logging.Abstractions;
using Shouldly;

namespace ClawdDotNet.Tools.Tests.Taskboard;

/// <summary>#697: A task an agent hands out carries where it came from — stamped, not claimed.</summary>
public sealed class TaskOriginTests : IDisposable
{
    private readonly string _directory = Path.Combine(Path.GetTempPath(), "clawd-tests", Guid.NewGuid().ToString("N"));
    private readonly SqliteTaskRepository _repo;
    private readonly TaskboardTool _tool = new();

    public TaskOriginTests()
    {
        _repo = new SqliteTaskRepository(new SqliteStorage(Path.Combine(_directory, "state.db")));
    }

    public void Dispose()
    {
        SqliteStorage.ReleasePooledConnections(_directory);
        try { Directory.Delete(_directory, recursive: true); }
        catch { /* cleanup is secondary */ }
    }

    private Task<ToolResult> Run(object input, string? runId = "run-lead", string? runTaskId = "t-1")
        => _tool.ExecuteAsync(JsonSerializer.SerializeToElement(input), new AgentToolContext(
            "lead", "inst", new Dictionary<string, object?>(), new NullStateStore(), NullLogger.Instance,
            CancellationToken.None, SharedWorkspacePath: Path.Combine(_directory, "SharedWorkspace"), Tasks: _repo)
        {
            RunId = runId,
            RunTaskId = runTaskId
        }, CancellationToken.None);

    private static string IdOf(ToolResult result) => result.Content.Split(' ', 4)[2];

    [Fact]
    public async Task A_task_handed_out_in_a_run_names_that_run_and_its_task()
    {
        var created = await Run(new { action = "task_create", title = "Write the listing", assignee = "@ads" });

        var task = (await _repo.GetAsync(IdOf(created), default))!;
        task.OriginRunId.ShouldBe("run-lead");
        task.OriginTaskId.ShouldBe("t-1");
        (await Run(new { action = "task_list" })).Content.ShouldContain("Arose from: lead, while working on t-1, run run-lead");
    }

    [Fact]
    public async Task The_agent_cannot_claim_an_origin()
    {
        var created = await Run(new { action = "task_create", title = "Write the listing", origin_run = "run-forged", origin_task = "t-99" });

        var task = (await _repo.GetAsync(IdOf(created), default))!;
        task.OriginRunId.ShouldBe("run-lead");
        task.OriginTaskId.ShouldBe("t-1");
    }

    [Fact]
    public async Task A_comment_names_the_run_it_was_written_in()
    {
        var id = IdOf(await Run(new { action = "task_create", title = "Write the listing", assignee = "@lead" }));

        await Run(new { action = "task_comment", id, text = "Price checked." });

        (await _repo.GetAsync(id, default))!.Body.ShouldContain("run run-lead");
    }
    [Fact]
    public async Task The_body_is_not_replaced_so_the_trail_back_stays()
    {
        var id = IdOf(await Run(new { action = "task_create", title = "Write the listing", body = "Use the spring photos." }));
        await Run(new { action = "task_comment", id, text = "Photos are in the unit workspace." });

        var result = await Run(new { action = "task_update", id, body = "Something else entirely." });

        result.Success.ShouldBeFalse();
        result.ErrorMessage!.ShouldContain("task_comment");
        var body = (await _repo.GetAsync(id, default))!.Body;
        body.ShouldContain("Use the spring photos.");
        body.ShouldContain("Photos are in the unit workspace.");
    }

    [Fact]
    public async Task Only_the_creator_moves_the_acceptance_criteria()
    {
        var id = IdOf(await Run(new { action = "task_create", title = "Write the listing", assignee = "@ads", acceptance = "Three bullet points." }));

        (await Run(new { action = "task_update", id, acceptance = "Four bullet points." })).Success.ShouldBeTrue("the lead created it");

        var byAssignee = await _tool.ExecuteAsync(
            JsonSerializer.SerializeToElement(new { action = "task_update", id, acceptance = "Any text will do." }),
            new AgentToolContext("ads", "inst", new Dictionary<string, object?>(), new NullStateStore(), NullLogger.Instance,
                CancellationToken.None, SharedWorkspacePath: Path.Combine(_directory, "SharedWorkspace"), Tasks: _repo),
            CancellationToken.None);

        byAssignee.Success.ShouldBeFalse();
        (await _repo.GetAsync(id, default))!.Acceptance.ShouldBe("Four bullet points.");
    }
}