using System.Net;
using System.Net.Http.Json;
using ItWorx.KnowledgeHub.Contracts.Admin;
using ItWorx.KnowledgeHub.Contracts.Auth;
using ItWorx.KnowledgeHub.Contracts.Runbooks;
using ItWorx.KnowledgeHub.IntegrationTests.Infrastructure;

namespace ItWorx.KnowledgeHub.IntegrationTests.Projects;

[Collection(PostgresTestGroup.Name)]
public sealed class RunbookTests(PostgresContainerFixture postgres) : OwnerSetupTestBase(postgres)
{
    private async Task<HttpClient> AuthenticatedClientAsync()
    {
        var client = Factory.CreateClient();
        await SetupHelper.LoginAsync(client, OwnerEmail, OwnerPassword);
        return client;
    }

    private static async Task<RunbookDetail> CreateRunbookAsync(HttpClient client, string title)
    {
        var response = await SetupHelper.PostWithCsrfAsync(
            client, "/api/v1/runbooks",
            new CreateRunbookRequest(null, title, "## Doel\n\nHerstel de dienst.", null, "High", true, 45));
        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
        var runbook = await response.Content.ReadFromJsonAsync<RunbookDetail>();
        Assert.NotNull(runbook);
        return runbook;
    }

    [Fact]
    public async Task Creating_a_runbook_creates_a_backing_Runbook_page_with_a_profile_and_is_stale_until_validated()
    {
        using var client = await AuthenticatedClientAsync();

        var runbook = await CreateRunbookAsync(client, "Databaseherstel");

        Assert.Equal("Draft", runbook.Status);
        Assert.Equal("High", runbook.RiskLevel);
        Assert.True(runbook.IsStale);
        Assert.Null(runbook.LastValidatedAt);

        var pageResponse = await client.GetAsync($"/api/v1/pages/{runbook.PageId}");
        var page = await pageResponse.Content.ReadFromJsonAsync<ItWorx.KnowledgeHub.Contracts.Knowledge.PageDetail>();
        Assert.Equal("Runbook", page!.DocumentType);
    }

    [Fact]
    public async Task Validating_a_runbook_against_its_current_revision_clears_staleness()
    {
        using var client = await AuthenticatedClientAsync();
        var runbook = await CreateRunbookAsync(client, "Te valideren procedure");

        var response = await SetupHelper.PostWithCsrfAndIfMatchAsync(
            client, $"/api/v1/runbooks/{runbook.Id}/validate", new { }, runbook.ETag);

        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
        var validated = await response.Content.ReadFromJsonAsync<RunbookDetail>();
        Assert.False(validated!.IsStale);
        Assert.NotNull(validated.LastValidatedAt);
    }

    [Fact]
    public async Task Editing_the_underlying_page_after_validation_makes_the_runbook_stale_again()
    {
        using var client = await AuthenticatedClientAsync();
        var runbook = await CreateRunbookAsync(client, "Procedure die verandert");

        var validateResponse = await SetupHelper.PostWithCsrfAndIfMatchAsync(
            client, $"/api/v1/runbooks/{runbook.Id}/validate", new { }, runbook.ETag);
        var validated = await validateResponse.Content.ReadFromJsonAsync<RunbookDetail>();
        Assert.False(validated!.IsStale);

        var pageResponse = await client.GetFromJsonAsync<ItWorx.KnowledgeHub.Contracts.Knowledge.PageDetail>($"/api/v1/pages/{runbook.PageId}");
        await SetupHelper.PutWithCsrfAsync(
            client,
            $"/api/v1/pages/{runbook.PageId}",
            new ItWorx.KnowledgeHub.Contracts.Knowledge.UpdatePageRequest(
                pageResponse!.Title, "## Doel\n\nBijgewerkte procedure.", "Runbook", "Active", "Procedure bijgewerkt."),
            pageResponse.ETag);

        var afterEdit = await client.GetFromJsonAsync<RunbookDetail>($"/api/v1/runbooks/{runbook.Id}");
        Assert.True(afterEdit!.IsStale);
    }

    [Fact]
    public async Task Updating_the_runbook_profile_changes_risk_level_and_status()
    {
        using var client = await AuthenticatedClientAsync();
        var runbook = await CreateRunbookAsync(client, "Aan te passen profiel");

        var response = await SetupHelper.PutWithCsrfAsync(
            client, $"/api/v1/runbooks/{runbook.Id}/profile",
            new UpdateRunbookProfileRequest(runbook.Owner, "Critical", "Active", true, 90, null),
            runbook.ETag);

        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
        var updated = await response.Content.ReadFromJsonAsync<RunbookDetail>();
        Assert.Equal("Critical", updated!.RiskLevel);
        Assert.Equal("Active", updated.Status);
    }

    [Fact]
    public async Task Runbooks_appear_in_the_workspace_runbook_list()
    {
        using var client = await AuthenticatedClientAsync();
        var runbook = await CreateRunbookAsync(client, "Vindbare procedure");

        var list = await client.GetFromJsonAsync<RunbookListResponse>("/api/v1/runbooks");

        Assert.NotNull(list);
        Assert.Contains(list.Items, item => item.Id == runbook.Id && item.Title == "Vindbare procedure");
    }

    // Reuses the exact reader-boundary pattern already established in
    // ProjectHubTests.A_reader_cannot_create_or_mutate_projects_but_can_read_them —
    // see DecisionTests' identical addition for the same V2-M5 rationale.
    [Fact]
    public async Task A_reader_can_read_runbooks_but_cannot_create_or_validate_them()
    {
        using var adminClient = await AuthenticatedClientAsync();
        var runbook = await CreateRunbookAsync(adminClient, "Alleen-lezenprocedure");

        const string readerEmail = "runbooklezer@itworx.test";
        const string readerPassword = "reader-strong-password";
        var createUserResponse = await SetupHelper.PostWithCsrfAsync(
            adminClient, "/api/v1/admin/users", new CreateUserRequest("Testlezer", readerEmail, readerPassword, "Reader"));
        Assert.Equal(HttpStatusCode.OK, createUserResponse.StatusCode);

        using var readerClient = Factory.CreateClient();
        await SetupHelper.LoginAsync(readerClient, readerEmail, readerPassword);

        var readResponse = await readerClient.GetAsync($"/api/v1/runbooks/{runbook.Id}");
        Assert.Equal(HttpStatusCode.OK, readResponse.StatusCode);

        var createResponse = await SetupHelper.PostWithCsrfAsync(
            readerClient, "/api/v1/runbooks",
            new CreateRunbookRequest(null, "Ongeautoriseerde procedure", "## Doel\n\nX.", null, "Low", false, null));
        Assert.Equal(HttpStatusCode.Forbidden, createResponse.StatusCode);

        var validateResponse = await SetupHelper.PostWithCsrfAndIfMatchAsync(
            readerClient, $"/api/v1/runbooks/{runbook.Id}/validate", new { }, runbook.ETag);
        Assert.Equal(HttpStatusCode.Forbidden, validateResponse.StatusCode);
    }
}