using System.Text;
using System.Text.Json;
using DotNet.Testcontainers.Builders;
using DotNet.Testcontainers.Containers;
using DotNet.Testcontainers.Images;
using MycroForge.CLI.Tests.Extensions;
using MycroForge.Core;

namespace MycroForge.CLI.Tests;

public class InitCommandTests
{
    private IFutureDockerImage Image = null!;
    private IContainer Container = null!;

    private async Task CreateImage()
    {
        Image = new ImageFromDockerfileBuilder()
            .WithDockerfileDirectory(CommonDirectoryPath.GetSolutionDirectory(), string.Empty)
            .WithDockerfile("Dockerfile")
            .WithCleanUp(true)
            .Build();

        await Image.CreateAsync();
    }

    private async Task CreateContainer()
    {
        Container = new ContainerBuilder()
            .WithImage(Image)
            .WithCleanUp(true)
            .Build();

        await Container.StartAsync();
    }

    [OneTimeSetUp]
    public async Task SetupOnce()
    {
        await CreateImage();

        await CreateContainer();

        await Container.ExecAsync(["m4g", "init", "todo"]);
    }

    [Test]
    public async Task Creates_m4g_json()
    {
        var bytes = await Container.ReadFileFromRootAsync("m4g.json");
        using var stream = new MemoryStream(bytes);
        var config = await JsonSerializer.DeserializeAsync<ProjectConfig>(stream, DefaultJsonSerializerOptions.Default);

        Assert.That(config, Is.Not.Null);

        Assert.Multiple(() =>
        {
            Assert.That(config!.Api, Is.Not.Null);
            Assert.That(config.Api.Port, Is.EqualTo(8000));
            Assert.That(config.Db, Is.Not.Null);
            Assert.That(config.Db.DbhPort, Is.EqualTo(5050));
            Assert.That(config.Db.DbuPort, Is.EqualTo(5051));
        });
    }

    [Test]
    public async Task Creates_main_py()
    {
        var bytes = await Container.ReadFileFromRootAsync("main.py");
        var text = Encoding.UTF8.GetString(bytes);
        var lines = text.Split('\n');

        // TestContext.WriteLine(text);

        Assert.Multiple(() =>
        {
            Assert.That(text, Is.Not.Empty);
            Assert.That(lines, Does.Contain("from fastapi import FastAPI"));
            Assert.That(lines, Does.Contain("from api.routers import hello"));
            Assert.That(lines, Does.Contain("app = FastAPI()"));
            Assert.That(lines, Does.Contain("app.include_router(prefix=\"/hello\", router=hello.router)"));
        });
    }

    [Test]
    public async Task Creates_gitignore()
    {
        var bytes = await Container.ReadFileFromRootAsync(".gitignore");
        var text = Encoding.UTF8.GetString(bytes);
        var lines = text.Split('\n');

        // TestContext.WriteLine(text);

        Assert.Multiple(() =>
        {
            Assert.That(text, Is.Not.Empty);
            Assert.That(lines, Does.Contain(".venv"));
            Assert.That(lines, Does.Contain("__pycache__/"));
        });
    }

    [Test]
    public async Task Creates_alembic_ini()
    {
        var bytes = await Container.ReadFileFromRootAsync("alembic.ini");
        var text = Encoding.UTF8.GetString(bytes);
        var lines = text.Split('\n');

        // TestContext.WriteLine(text);

        Assert.Multiple(() =>
        {
            Assert.That(text, Is.Not.Empty);
            Assert.That(lines, Does.Contain("[alembic]"));
            Assert.That(lines, Does.Contain("sqlalchemy.url = driver://user:pass@localhost/dbname"));
        });
    }

    [Test]
    public async Task Creates_db_docker_compose_yml()
    {
        var bytes = await Container.ReadFileFromRootAsync("db.docker-compose.yml");
        var text = Encoding.UTF8.GetString(bytes);
        var lines = text.Split('\n');

        // TestContext.WriteLine(text);

        Assert.Multiple(() =>
        {
            Assert.That(text, Is.Not.Empty);
            Assert.That(lines, Does.Contain(" todo_mariadb:"));
            Assert.That(lines, Does.Contain("  container_name: 'todo_mariadb'"));
            Assert.That(lines, Does.Contain("   - '${DBH_PORT}:3306'"));
            Assert.That(lines, Does.Contain("   MYSQL_DATABASE: 'todo'"));
            Assert.That(lines, Does.Contain("   - 'todo_mariadb:/var/lib/mysql'"));
            Assert.That(lines, Does.Contain(" todo_phpmyadmin:"));
            Assert.That(lines, Does.Contain("  container_name: todo_phpmyadmin"));
            Assert.That(lines, Does.Contain("   PMA_HOST: todo_mariadb"));
            Assert.That(lines, Does.Contain("   - todo_mariadb"));
            Assert.That(lines, Does.Contain(" todo_mariadb:"));
        });
    }

    [Test]
    public async Task Creates_api__router_hello_py()
    {
        var bytes = await Container.ReadFileFromRootAsync("api/routers/hello.py");
        var text = Encoding.UTF8.GetString(bytes);
        var lines = text.Split('\n');

        // TestContext.WriteLine(text);

        Assert.Multiple(() =>
        {
            Assert.That(text, Is.Not.Empty);
            Assert.That(lines, Does.Contain("from fastapi import APIRouter"));
            Assert.That(lines, Does.Contain("from fastapi.responses import JSONResponse"));
            Assert.That(lines, Does.Contain("from fastapi.encoders import jsonable_encoder"));
            Assert.That(lines, Does.Contain("router = APIRouter()"));
            Assert.That(lines, Does.Contain("@router.get(\"/{name}\")"));
            Assert.That(lines, Does.Contain("async def hello(name: str):"));
            Assert.That(lines, Does.Contain("\treturn JSONResponse(status_code=200, content=jsonable_encoder({'greeting': f\"Hello, {name}!\"}))"));
        });
    }

    [Test]
    public async Task Creates_db__engine__async_session_py()
    {
        var bytes = await Container.ReadFileFromRootAsync("db/engine/async_session.py");
        var text = Encoding.UTF8.GetString(bytes);
        var lines = text.Split('\n');

        // TestContext.WriteLine(text);

        Assert.Multiple(() =>
        {
            Assert.That(text, Is.Not.Empty);
            Assert.That(lines, Does.Contain("from sqlalchemy.ext.asyncio import create_async_engine, AsyncEngine, AsyncSession"));
            Assert.That(lines, Does.Contain("from db.settings import DbSettings"));
            Assert.That(lines, Does.Contain("async_engine: AsyncEngine = create_async_engine(DbSettings.get_connectionstring())"));
            Assert.That(lines, Does.Contain("def async_session() -> AsyncSession:"));
            Assert.That(lines, Does.Contain("\treturn AsyncSession(async_engine, expire_on_commit=False)"));
        });
    }

    [Test]
    public async Task Creates_db__entities__entity_base_py()
    {
        var bytes = await Container.ReadFileFromRootAsync("db/entities/entity_base.py");
        var text = Encoding.UTF8.GetString(bytes);
        var lines = text.Split('\n');

        // TestContext.WriteLine(text);

        Assert.Multiple(() =>
        {
            Assert.That(text, Is.Not.Empty);
            Assert.That(lines, Does.Contain("from sqlalchemy.orm import DeclarativeBase"));
            Assert.That(lines, Does.Contain("class EntityBase(DeclarativeBase):"));
            Assert.That(lines, Does.Contain("\tpass"));
        });
    }

    [Test]
    public async Task Creates_db__settings_py()
    {
        var bytes = await Container.ReadFileFromRootAsync("db/settings.py");
        var text = Encoding.UTF8.GetString(bytes);
        var lines = text.Split('\n');

        // TestContext.WriteLine(text);

        Assert.Multiple(() =>
        {
            Assert.That(text, Is.Not.Empty);
            Assert.That(lines, Does.Contain("class DbSettings:"));
            Assert.That(lines, Does.Contain("\tdef get_connectionstring() -> str:"));
            Assert.That(lines, Does.Contain("\t\tconnectionstring = \"mysql+asyncmy://root:password@localhost:5050/todo\""));
            Assert.That(lines, Does.Contain("\t\treturn connectionstring"));
        });
    }
}