import { dirname, fromFileUrl, join, resolve } from '@std/path';

import { Onebox } from '../../../onebox/ts/classes/onebox.ts';
import type { IAppVersionConfig } from '../../../onebox/ts/classes/appstore-types.ts';

const scenarioName = 'onebox-cloudly-appstore-worker';
const smokeId = `cloudly-appstore-${Date.now().toString(36)}`;
const testingDir = resolve(dirname(fromFileUrl(import.meta.url)), '../..');
const buildDir = join(testingDir, '.nogit', scenarioName, smokeId);
const serviceName = `cloudly-${Date.now().toString(36)}`;
const dockerServiceName = `onebox-${serviceName}`;
const routeDomain = `${serviceName}.test`;

const delayFor = async (millisecondsArg: number) => {
  await new Promise((resolveArg) => setTimeout(resolveArg, millisecondsArg));
};

const run = async (commandArg: string, argsArg: string[]) => {
  const command = new Deno.Command(commandArg, {
    args: argsArg,
    stdout: 'piped',
    stderr: 'piped',
  });
  const output = await command.output();
  const stdout = new TextDecoder().decode(output.stdout).trim();
  const stderr = new TextDecoder().decode(output.stderr).trim();
  if (stdout) {
    console.log(stdout);
  }
  if (stderr) {
    console.log(stderr);
  }
  if (!output.success) {
    throw new Error(`${commandArg} ${argsArg.join(' ')} exited with ${output.code}`);
  }
  return { stdout, stderr };
};

const waitFor = async (
  checkFunctionArg: () => boolean | Promise<boolean>,
  messageArg: string,
  timeoutMsArg = 180000,
) => {
  const startTime = Date.now();
  while (Date.now() - startTime < timeoutMsArg) {
    if (await checkFunctionArg()) {
      return;
    }
    await delayFor(1000);
  }
  throw new Error(`Timed out waiting for ${messageArg}`);
};

const dockerServiceExists = async (serviceNameArg: string) => {
  const command = new Deno.Command('docker', {
    args: ['service', 'inspect', serviceNameArg],
    stdout: 'null',
    stderr: 'null',
  });
  return (await command.output()).success;
};

const removeDockerService = async (serviceNameArg: string) => {
  if (await dockerServiceExists(serviceNameArg)) {
    await run('docker', ['service', 'rm', serviceNameArg]).catch(() => null);
    await delayFor(2000);
  }
};

const dockerContainerRunning = async (containerNameArg: string) => {
  const command = new Deno.Command('docker', {
    args: ['container', 'inspect', containerNameArg, '--format', '{{.State.Running}}'],
    stdout: 'piped',
    stderr: 'null',
  });
  const output = await command.output();
  if (!output.success) {
    return false;
  }
  return new TextDecoder().decode(output.stdout).trim() === 'true';
};

const assertNoPreexistingScenarioServices = async () => {
  for (const serviceNameArg of [dockerServiceName, 'onebox-smartproxy']) {
    if (await dockerServiceExists(serviceNameArg)) {
      throw new Error(`${serviceNameArg} already exists; refusing to overwrite a running service`);
    }
  }
  for (const containerNameArg of ['onebox-mongodb', 'onebox-minio']) {
    if (await dockerContainerRunning(containerNameArg)) {
      throw new Error(`${containerNameArg} is already running; refusing to overwrite a platform container`);
    }
  }
};

const waitForDockerServiceRunning = async (serviceNameArg: string) => {
  try {
    await waitFor(async () => {
      const command = new Deno.Command('docker', {
        args: ['service', 'ps', serviceNameArg, '--format', '{{.CurrentState}}'],
        stdout: 'piped',
        stderr: 'null',
      });
      const output = await command.output();
      if (!output.success) {
        return false;
      }
      return new TextDecoder().decode(output.stdout).includes('Running');
    }, `${serviceNameArg} running task`);
  } catch (error) {
    await run('docker', ['service', 'ps', '--no-trunc', serviceNameArg]).catch(() => null);
    await run('docker', ['service', 'logs', '--raw', '--tail', '120', serviceNameArg]).catch(() => null);
    throw error;
  }
};

const waitForDockerContainerRunning = async (containerNameArg: string) => {
  await waitFor(async () => dockerContainerRunning(containerNameArg), `${containerNameArg} running container`);
};

const ensureDockerReady = async () => {
  await run('docker', ['version']);
  const { stdout } = await run('docker', ['info', '--format', '{{.Swarm.LocalNodeState}}']);
  if (stdout.trim() !== 'active') {
    throw new Error('Docker Swarm must be active. In Vagrant this is handled by scripts/provision-vm.sh.');
  }
};

const getTemplateEnvVars = (
  configArg: IAppVersionConfig,
  overridesArg: Record<string, string>,
) => {
  const envVars: Record<string, string> = {};
  const missingRequiredEnvVars: string[] = [];

  for (const envVar of configArg.envVars || []) {
    const value = overridesArg[envVar.key] ?? envVar.value ?? '';
    if (envVar.required && !value) {
      missingRequiredEnvVars.push(envVar.key);
    }
    envVars[envVar.key] = value;
  }

  for (const [key, value] of Object.entries(overridesArg)) {
    envVars[key] = value;
  }

  if (missingRequiredEnvVars.length > 0) {
    throw new Error(`Missing required template env vars: ${missingRequiredEnvVars.join(', ')}`);
  }

  return envVars;
};

const requestCloudlyBootstrapScript = async () => {
  const curlArgs = [
    '-sS',
    '--noproxy',
    '*',
    '--max-time',
    '10',
    '--resolve',
    `${routeDomain}:8080:127.0.0.1`,
    '-o',
    '-',
    '-w',
    '\n%{http_code}',
    `http://${routeDomain}:8080/curlfresh/setup.sh`,
  ];

  const command = new Deno.Command('curl', {
    args: curlArgs,
    stdout: 'piped',
    stderr: 'piped',
  });
  const output = await command.output();
  const stdout = new TextDecoder().decode(output.stdout).trim();
  const stderr = new TextDecoder().decode(output.stderr).trim();
  if (!output.success) {
    throw new Error(`curl failed: ${stderr || stdout}`);
  }
  const lines = stdout.split('\n');
  const statusCode = lines[lines.length - 1];
  const body = lines.slice(0, -1).join('\n');
  return { statusCode, body, stderr };
};

const waitForCloudlyWorkerBootstrapRoute = async () => {
  let lastResponse: Awaited<ReturnType<typeof requestCloudlyBootstrapScript>> | undefined;
  let lastError: Error | undefined;
  try {
    await waitFor(async () => {
      try {
        lastResponse = await requestCloudlyBootstrapScript();
        lastError = undefined;
        return (
          lastResponse.statusCode === '200' &&
          lastResponse.body.includes('pnpm install -g @serve.zone/spark') &&
          lastResponse.body.includes('spark installdaemon')
        );
      } catch (error) {
        lastError = error as Error;
        return false;
      }
    }, 'Cloudly worker bootstrap route through Onebox ingress');
  } catch (error) {
    console.log(`[${scenarioName}] Last bootstrap response: ${JSON.stringify(lastResponse)}`);
    if (lastError) {
      console.log(`[${scenarioName}] Last bootstrap error: ${lastError.message}`);
    }
    await run('docker', ['service', 'ps', 'onebox-smartproxy']).catch(() => null);
    await run('docker', ['service', 'logs', '--raw', '--tail', '120', 'onebox-smartproxy']).catch(() => null);
    await run('docker', ['service', 'ps', dockerServiceName]).catch(() => null);
    await run('docker', ['service', 'logs', '--raw', '--tail', '120', dockerServiceName]).catch(() => null);
    throw error;
  }
};

const main = async () => {
  let onebox: Onebox | undefined;
  let deployedService = false;

  try {
    await ensureDockerReady();
    await assertNoPreexistingScenarioServices();
    await Deno.mkdir(buildDir, { recursive: true });
    Deno.chdir(buildDir);
    Deno.env.set('ONEBOX_DEV', 'true');

    console.log(`[${scenarioName}] Starting Onebox from ${buildDir}`);
    onebox = new Onebox();
    await onebox.init();
    await waitForDockerServiceRunning('onebox-smartproxy');

    const appMeta = await onebox.appStore.getAppMeta('cloudly');
    const version = appMeta.latestVersion;
    const config = await onebox.appStore.getAppVersionConfig('cloudly', version);
    if (!config.platformRequirements?.mongodb || !config.platformRequirements?.s3) {
      throw new Error(`Cloudly template must require MongoDB and S3: ${JSON.stringify(config.platformRequirements)}`);
    }

    console.log(`[${scenarioName}] Installing Cloudly template ${version} as ${serviceName}`);
    const envVars = getTemplateEnvVars(config, {
      SERVEZONE_ADMINACCOUNT: 'testadmin:testpassword',
    });

    const service = await onebox.services.deployService({
      name: serviceName,
      image: config.image,
      port: config.port,
      domain: routeDomain,
      autoDNS: false,
      envVars,
      enableMongoDB: Boolean(config.platformRequirements.mongodb),
      enableS3: Boolean(config.platformRequirements.s3),
      enableClickHouse: Boolean(config.platformRequirements.clickhouse),
      enableRedis: Boolean(config.platformRequirements.redis),
      enableMariaDB: Boolean(config.platformRequirements.mariadb),
      appTemplateId: 'cloudly',
      appTemplateVersion: version,
    });
    deployedService = true;

    if (service.appTemplateId !== 'cloudly' || service.appTemplateVersion !== version) {
      throw new Error(`Cloudly template tracking missing on service: ${JSON.stringify(service)}`);
    }

    await waitForDockerContainerRunning('onebox-mongodb');
    await waitForDockerContainerRunning('onebox-minio');
    await waitForDockerServiceRunning(dockerServiceName);
    await waitForCloudlyWorkerBootstrapRoute();

    console.log(`[${scenarioName}] Scenario passed`);
  } finally {
    if (onebox) {
      if (deployedService) {
        await onebox.services.removeService(serviceName).catch((error) => {
          console.log(`[${scenarioName}] Service cleanup failed: ${(error as Error).message}`);
        });
      }
      await onebox.platformServices.stopPlatformService('mongodb').catch(() => null);
      await onebox.platformServices.stopPlatformService('minio').catch(() => null);
      await onebox.shutdown();
    }

    await removeDockerService(dockerServiceName);
    await removeDockerService('onebox-mongodb');
    await removeDockerService('onebox-minio');
    await removeDockerService('onebox-smartproxy');
  }
};

await main();