import { mkdtemp, readFile, rm } from "node:fs/promises";
import os from "node:os";
import path from "node:path";
import { describe, expect, it, vi } from "vitest";
import { __testing, startMatrixQaHarness, writeMatrixQaHarnessFiles } from "./harness.runtime.js";

describe("matrix harness runtime", () => {
  it("writes a pinned Tuwunel compose file and redacted manifest", async () => {
    const outputDir = await mkdtemp(path.join(os.tmpdir(), "matrix-qa-harness-"));

    try {
      const result = await writeMatrixQaHarnessFiles({
        outputDir,
        homeserverPort: 28008,
        registrationToken: "secret-token",
        serverName: "matrix-qa.test",
      });

      const compose = await readFile(result.composeFile, "utf8");
      const manifest = JSON.parse(await readFile(result.manifestPath, "utf8")) as {
        image: string;
        serverName: string;
        homeserverPort: number;
        composeFile: string;
      };

      expect(compose).toContain(`image: ${__testing.MATRIX_QA_DEFAULT_IMAGE}`);
      expect(compose).toContain('      - "127.0.0.1:28008:8008"');
      expect(compose).toContain('TUWUNEL_ALLOW_ENCRYPTION: "true"');
      expect(compose).toContain('TUWUNEL_ALLOW_REGISTRATION: "true"');
      expect(compose).toContain('TUWUNEL_REGISTRATION_TOKEN: "secret-token"');
      expect(compose).toContain('TUWUNEL_SERVER_NAME: "matrix-qa.test"');
      expect(manifest).toEqual({
        image: __testing.MATRIX_QA_DEFAULT_IMAGE,
        serverName: "matrix-qa.test",
        homeserverPort: 28008,
        composeFile: path.join(outputDir, "docker-compose.matrix-qa.yml"),
        dataDir: path.join(outputDir, "data"),
      });
      expect(result.registrationToken).toBe("secret-token");
    } finally {
      await rm(outputDir, { recursive: true, force: true });
    }
  });

  it("starts the harness, waits for versions, and exposes a stop command", async () => {
    const calls: string[] = [];
    const fetchCalls: string[] = [];
    const outputDir = await mkdtemp(path.join(os.tmpdir(), "matrix-qa-harness-"));

    try {
      const result = await startMatrixQaHarness(
        {
          outputDir,
          repoRoot: "/repo/openclaw",
          homeserverPort: 28008,
        },
        {
          async runCommand(command, args, cwd) {
            calls.push([command, ...args, `@${cwd}`].join(" "));
            if (args.join(" ").includes("ps --format json")) {
              return { stdout: '[{"State":"running"}]\n', stderr: "" };
            }
            return { stdout: "", stderr: "" };
          },
          fetchImpl: vi.fn(async (input: string) => {
            fetchCalls.push(input);
            return { ok: true };
          }),
          sleepImpl: vi.fn(async () => {}),
          resolveHostPortImpl: vi.fn(async (port: number) => port),
        },
      );

      expect(calls).toEqual([
        `docker compose -f ${outputDir}/docker-compose.matrix-qa.yml down --remove-orphans @/repo/openclaw`,
        `docker compose -f ${outputDir}/docker-compose.matrix-qa.yml up -d @/repo/openclaw`,
        `docker compose -f ${outputDir}/docker-compose.matrix-qa.yml ps --format json matrix-qa-homeserver @/repo/openclaw`,
      ]);
      expect(fetchCalls).toEqual([
        "http://127.0.0.1:28008/_matrix/client/versions",
        "http://127.0.0.1:28008/_matrix/client/versions",
      ]);
      expect(result.baseUrl).toBe("http://127.0.0.1:28008/");
      expect(result.stopCommand).toBe(
        `docker compose -f ${outputDir}/docker-compose.matrix-qa.yml down --remove-orphans`,
      );
      await result.restartService();
      expect(calls).toContain(
        `docker compose -f ${outputDir}/docker-compose.matrix-qa.yml restart matrix-qa-homeserver @/repo/openclaw`,
      );
    } finally {
      await rm(outputDir, { recursive: true, force: true });
    }
  });

  it("treats empty Docker health fields as a fallback to running state", async () => {
    const outputDir = await mkdtemp(path.join(os.tmpdir(), "matrix-qa-harness-"));

    try {
      const result = await startMatrixQaHarness(
        {
          outputDir,
          repoRoot: "/repo/openclaw",
          homeserverPort: 28008,
        },
        {
          async runCommand(_command, args) {
            if (args.join(" ").includes("ps --format json")) {
              return { stdout: '{"Health":"","State":"running"}\n', stderr: "" };
            }
            return { stdout: "", stderr: "" };
          },
          fetchImpl: vi.fn(async () => ({ ok: true })),
          sleepImpl: vi.fn(async () => {}),
          resolveHostPortImpl: vi.fn(async (port: number) => port),
        },
      );

      expect(result.baseUrl).toBe("http://127.0.0.1:28008/");
    } finally {
      await rm(outputDir, { recursive: true, force: true });
    }
  });

  it("falls back to the container IP when the host port is unreachable", async () => {
    const calls: string[] = [];
    const outputDir = await mkdtemp(path.join(os.tmpdir(), "matrix-qa-harness-"));

    try {
      const result = await startMatrixQaHarness(
        {
          outputDir,
          repoRoot: "/repo/openclaw",
          homeserverPort: 28008,
        },
        {
          async runCommand(command, args, cwd) {
            calls.push([command, ...args, `@${cwd}`].join(" "));
            const rendered = args.join(" ");
            if (rendered.includes("ps --format json")) {
              return { stdout: '{"State":"running"}\n', stderr: "" };
            }
            if (rendered.includes("ps -q")) {
              return { stdout: "container-123\n", stderr: "" };
            }
            if (rendered.includes("inspect --format")) {
              return { stdout: "172.18.0.10\n", stderr: "" };
            }
            return { stdout: "", stderr: "" };
          },
          fetchImpl: vi.fn(async (input: string) => ({
            ok: input.startsWith("http://172.18.0.10:8008/"),
          })),
          sleepImpl: vi.fn(async () => {}),
          resolveHostPortImpl: vi.fn(async (port: number) => port),
        },
      );

      expect(result.baseUrl).toBe("http://172.18.0.10:8008/");
      expect(calls).toContain(
        `docker compose -f ${outputDir}/docker-compose.matrix-qa.yml ps -q matrix-qa-homeserver @/repo/openclaw`,
      );
      expect(calls).toContain(
        "docker inspect --format {{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}} container-123 @/repo/openclaw",
      );
    } finally {
      await rm(outputDir, { recursive: true, force: true });
    }
  });

  it("keeps the host URL when the container IP is also unreachable", async () => {
    const fetchCalls: string[] = [];
    const outputDir = await mkdtemp(path.join(os.tmpdir(), "matrix-qa-harness-"));

    try {
      const result = await startMatrixQaHarness(
        {
          outputDir,
          repoRoot: "/repo/openclaw",
          homeserverPort: 28008,
        },
        {
          async runCommand(_command, args) {
            const rendered = args.join(" ");
            if (rendered.includes("ps --format json")) {
              return { stdout: '{"State":"running"}\n', stderr: "" };
            }
            if (rendered.includes("ps -q")) {
              return { stdout: "container-123\n", stderr: "" };
            }
            if (rendered.includes("inspect --format")) {
              return { stdout: "172.18.0.10\n", stderr: "" };
            }
            return { stdout: "", stderr: "" };
          },
          fetchImpl: vi.fn(async (input: string) => {
            fetchCalls.push(input);
            return {
              ok:
                input === "http://127.0.0.1:28008/_matrix/client/versions" &&
                fetchCalls.filter((url) => url === input).length > 1,
            };
          }),
          sleepImpl: vi.fn(async () => {}),
          resolveHostPortImpl: vi.fn(async (port: number) => port),
        },
      );

      expect(result.baseUrl).toBe("http://127.0.0.1:28008/");
      expect(fetchCalls).toEqual([
        "http://127.0.0.1:28008/_matrix/client/versions",
        "http://127.0.0.1:28008/_matrix/client/versions",
        "http://127.0.0.1:28008/_matrix/client/versions",
      ]);
    } finally {
      await rm(outputDir, { recursive: true, force: true });
    }
  });

  it("keeps probing the container URL until it becomes reachable", async () => {
    const fetchCalls: string[] = [];
    const outputDir = await mkdtemp(path.join(os.tmpdir(), "matrix-qa-harness-"));

    try {
      const result = await startMatrixQaHarness(
        {
          outputDir,
          repoRoot: "/repo/openclaw",
          homeserverPort: 28008,
        },
        {
          async runCommand(_command, args) {
            const rendered = args.join(" ");
            if (rendered.includes("ps --format json")) {
              return { stdout: '{"State":"running"}\n', stderr: "" };
            }
            if (rendered.includes("ps -q")) {
              return { stdout: "container-123\n", stderr: "" };
            }
            if (rendered.includes("inspect --format")) {
              return { stdout: "172.18.0.10\n", stderr: "" };
            }
            return { stdout: "", stderr: "" };
          },
          fetchImpl: vi.fn(async (input: string) => {
            fetchCalls.push(input);
            return {
              ok:
                input === "http://172.18.0.10:8008/_matrix/client/versions" &&
                fetchCalls.filter((url) => url === input).length > 1,
            };
          }),
          sleepImpl: vi.fn(async () => {}),
          resolveHostPortImpl: vi.fn(async (port: number) => port),
        },
      );

      expect(result.baseUrl).toBe("http://172.18.0.10:8008/");
      expect(fetchCalls).toEqual([
        "http://127.0.0.1:28008/_matrix/client/versions",
        "http://127.0.0.1:28008/_matrix/client/versions",
        "http://172.18.0.10:8008/_matrix/client/versions",
        "http://127.0.0.1:28008/_matrix/client/versions",
        "http://172.18.0.10:8008/_matrix/client/versions",
        "http://172.18.0.10:8008/_matrix/client/versions",
      ]);
    } finally {
      await rm(outputDir, { recursive: true, force: true });
    }
  });
});