using System.Collections.Concurrent;
using Microsoft.Playwright;

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

/// <summary>Read-only deployed smoke for CSRF login, bounded lazy topology, and debugger navigation.</summary>
[Collection("Playwright")]
public class LowReviewSmokeTests(PlaywrightFixture fixture)
{
    [Fact]
    public async Task LowReview_CsrfLogin_LazyTopology_AndFlowDebuggerNavigation()
    {
        var page = await fixture.NewAuthenticatedPageAsync();
        var errors = new ConcurrentQueue<string>();
        page.PageError += (_, error) => errors.Enqueue(error);
        try
        {
            // Fixture fetch posts the real login form's antiforgery token with its cookie.
            Assert.DoesNotContain("/login", page.Url);
            await page.GotoAsync($"{PlaywrightFixture.BaseUrl}/deployment/topology");
            await Assertions.Expect(page.GetByRole(AriaRole.Heading, new() { Name = "Topology", Exact = true })).ToBeVisibleAsync();
            var live = page.Locator("#live-updates");
            if (await live.IsCheckedAsync()) await live.UncheckAsync();
            await Assertions.Expect(page.Locator("i.bi-box")).ToHaveCountAsync(0);
            await Assertions.Expect(page.GetByText("0 loaded instance(s)", new() { Exact = false })).ToBeVisibleAsync();

            var site = page.Locator("li[role='treeitem'][aria-level='1']").First;
            await Assertions.Expect(site).ToBeVisibleAsync();
            var toggle = site.Locator(":scope > .tv-row .tv-toggle").First;
            if (await toggle.GetAttributeAsync("aria-expanded") == "false") await toggle.ClickAsync();
            await site.GetByRole(AriaRole.Button, new() { Name = "Load instances", Exact = true }).First.ClickAsync();
            await Assertions.Expect(site.GetByText("Page 1", new() { Exact = true })).ToBeVisibleAsync();
            await Assertions.Expect(site.GetByRole(AriaRole.Button, new() { Name = "Previous", Exact = true })).ToBeDisabledAsync();
            await Assertions.Expect(site.GetByRole(AriaRole.Button, new() { Name = "Next", Exact = true })).ToBeVisibleAsync();
            Assert.InRange(await site.Locator("i.bi-box").CountAsync(), 0, 50);
            await Assertions.Expect(page.Locator("#blazor-error-ui")).ToBeHiddenAsync();
            await Assertions.Expect(page.Locator(".alert-danger")).ToHaveCountAsync(0);

            await PlaywrightFixture.ExpandAllNavSectionsAsync(page);
            await page.GetByRole(AriaRole.Link, new() { Name = "Flow Debugger", Exact = true }).ClickAsync();
            await PlaywrightFixture.WaitForPathAsync(page, "/deployment/flow-debugger");
            await Assertions.Expect(page.GetByRole(AriaRole.Heading, new() { Name = "Flow Debugger", Exact = true })).ToBeVisibleAsync();
            await Assertions.Expect(page.Locator("#blazor-error-ui")).ToBeHiddenAsync();
            Assert.Empty(errors);
        }
        finally { await page.Context.CloseAsync(); }
    }
}