using System.Text.Json;

namespace ZB.MOM.WW.ScadaBridge.CentralUI.PlaywrightTests;

/// <summary>Verifies worker publication and termination in the deployed Linux runtime image.</summary>
[Collection("Playwright")]
public class SandboxWorkerDeploymentTests(PlaywrightFixture fixture)
{
    /// <summary>Verifies that the worker runs scripts, bounds their output and recovers after a noncooperative script.</summary>
    /// <returns>A task that represents the asynchronous operation.</returns>
    [Fact]
    public async Task Medium_WorkerRunsBoundsOutputAndRecoversAfterNoncooperativeScript()
    {
        var page = await fixture.NewAuthenticatedPageAsync();
        try
        {
            async Task<JsonElement> Run(string code) => await page.EvaluateAsync<JsonElement>("""
                async code => {
                    const response = await fetch('/api/script-analysis/run', {
                        method: 'POST', headers: { 'Content-Type': 'application/json' },
                        body: JSON.stringify({ code, timeoutSeconds: 10 })
                    });
                    if (!response.ok) throw new Error(`Test Run HTTP ${response.status}`);
                    return await response.json();
                }
                """, code);
            var first = await Run("return 42;");
            Assert.True(first.GetProperty("success").GetBoolean(), first.ToString());
            Assert.Equal("42", first.GetProperty("returnValueJson").GetString());
            var bounded = await Run("Console.Write(new string('x', 100000)); return new string('y', 100000);");
            Assert.True(bounded.GetProperty("consoleOutput").GetString()!.Length <= 32768 + "\n… (truncated)".Length);
            Assert.Contains("truncated", bounded.GetProperty("consoleOutput").GetString());
            Assert.True(bounded.GetRawText().Length < 100000);
            var timeout = await Run("while (true) { }");
            Assert.False(timeout.GetProperty("success").GetBoolean());
            Assert.Equal(4, timeout.GetProperty("errorKind").GetInt32());
            var recovered = await Run("return 43;");
            Assert.True(recovered.GetProperty("success").GetBoolean(), recovered.ToString());
            Assert.Equal("43", recovered.GetProperty("returnValueJson").GetString());
        }
        finally { await page.CloseAsync(); }
    }
}