using System.Net;
using System.Text.Json.Nodes;

namespace MoShiro.Backend.Tests;

/// <summary>一行安装：Agent 和 Probe 共用同一份脚本，角色、网关、镜像由一次性代码决定，节点名字默认取主机名。</summary>
[Collection("probe-e2e")]
public sealed class InstallTests
{
    private readonly BackendFixture _backend;

    public InstallTests(BackendFixture backend)
    {
        _backend = backend;
    }

    private async Task<JsonNode> CreateAsync(string role)
    {
        using HttpResponseMessage response = await _backend.Admin.PostAsync("/api/admin/join-tokens", BackendFixture.Json(new JsonObject { ["role"] = role }));
        return JsonNode.Parse(await response.Content.ReadAsStringAsync())!;
    }

    [Theory]
    [InlineData("agent")]
    [InlineData("probe")]
    public async Task Commands_AreOneLiners_WithoutAPlaceholder_AndTheScriptIsFilledInForTheRole(string role)
    {
        JsonNode created = await CreateAsync(role);
        string code = created["plaintext"]!.GetValue<string>();
        JsonNode commands = created["install_commands"]!;
        string linux = commands["linux"]!.GetValue<string>();
        string macos = commands["macos"]!.GetValue<string>();
        string windows = commands["windows"]!.GetValue<string>();
        Assert.StartsWith("curl -fsSL '", linux, StringComparison.Ordinal);
        Assert.EndsWith("/install?code=" + code + "' | bash", linux, StringComparison.Ordinal);
        Assert.EndsWith("/install?code=" + code + "' | zsh", macos, StringComparison.Ordinal);
        Assert.StartsWith("irm '", windows, StringComparison.Ordinal);
        Assert.EndsWith("/install.ps1?code=" + code + "' | iex", windows, StringComparison.Ordinal);
        Assert.DoesNotContain("<", linux + macos + windows, StringComparison.Ordinal); // 没有要用户自己替换的占位符

        // 脚本不需要登录（拿代码就是授权），不带缓存
        using HttpResponseMessage sh = await _backend.Anonymous.GetAsync("/install?code=" + code);
        string script = await sh.Content.ReadAsStringAsync();
        Assert.Equal(HttpStatusCode.OK, sh.StatusCode);
        Assert.Equal("no-store", sh.Headers.CacheControl?.ToString());
        Assert.Contains($"ROLE='{role}'", script, StringComparison.Ordinal);
        Assert.Contains($"CODE='{code}'", script, StringComparison.Ordinal);
        Assert.Contains($"/moshiro-{role}:latest'", script, StringComparison.Ordinal);
        Assert.Contains("SERVER='http", script, StringComparison.Ordinal);
        Assert.DoesNotContain("@@", script, StringComparison.Ordinal);

        using HttpResponseMessage ps = await _backend.Anonymous.GetAsync("/install.ps1?code=" + code);
        string powershell = await ps.Content.ReadAsStringAsync();
        Assert.Equal(HttpStatusCode.OK, ps.StatusCode);
        Assert.Contains($"$role = '{role}'", powershell, StringComparison.Ordinal);
        Assert.DoesNotContain("@@", powershell, StringComparison.Ordinal);
    }

    [Fact]
    public async Task Codes_RecordWhoCreatedThem()
    {
        JsonNode created = await CreateAsync("agent");
        Assert.StartsWith("key:", created["token"]!["created_by"]!.GetValue<string>(), StringComparison.Ordinal); // Admin 客户端是 API key
    }

    [Fact]
    public async Task Script_IsNotServedForUnknownRevokedOrUsedUpCodes()
    {
        foreach (string path in new[] { "/install", "/install?code=", "/install?code=jt_nope", "/install.ps1?code=jt_nope", "/install.sh?code=jt_nope" })
        {
            using HttpResponseMessage response = await _backend.Anonymous.GetAsync(path);
            Assert.Equal(HttpStatusCode.NotFound, response.StatusCode);
        }

        JsonNode revoked = await CreateAsync("agent");
        using HttpResponseMessage delete = await _backend.Admin.DeleteAsync("/api/admin/join-tokens/" + revoked["token"]!["id"]!.GetValue<string>());
        Assert.True(delete.IsSuccessStatusCode);
        using HttpResponseMessage gone = await _backend.Anonymous.GetAsync("/install?code=" + revoked["plaintext"]!.GetValue<string>());
        Assert.Equal(HttpStatusCode.NotFound, gone.StatusCode);

        // 用完了（一次性令牌已经注册过一个节点）
        JsonNode used = await CreateAsync("probe");
        string code = used["plaintext"]!.GetValue<string>();
        using HttpResponseMessage before = await _backend.Anonymous.GetAsync("/install?code=" + code);
        Assert.Equal(HttpStatusCode.OK, before.StatusCode);
        await using (await MoShiro.TestSupport.AgentSimulator.EnrollAsync(_backend.Anonymous, code, _backend.UniqueName("used"))) { }
        using HttpResponseMessage after = await _backend.Anonymous.GetAsync("/install?code=" + code);
        Assert.Equal(HttpStatusCode.NotFound, after.StatusCode);
    }
}