import * as plugins from './tsdocker.plugins.js';
import * as paths from './tsdocker.paths.js';
import { logger } from './tsdocker.logging.js';
import { Dockerfile } from './classes.dockerfile.js';
import { DockerRegistry } from './classes.dockerregistry.js';
import { RegistryStorage } from './classes.registrystorage.js';
import type { ITsDockerConfig } from './interfaces/index.js';

const smartshellInstance = new plugins.smartshell.Smartshell({
  executor: 'bash',
});

/**
 * Main orchestrator class for Docker operations
 */
export class TsDockerManager {
  public registryStorage: RegistryStorage;
  public config: ITsDockerConfig;
  public projectInfo: any;
  private dockerfiles: Dockerfile[] = [];

  constructor(config: ITsDockerConfig) {
    this.config = config;
    this.registryStorage = new RegistryStorage();
  }

  /**
   * Prepares the manager by loading project info and registries
   */
  public async prepare(): Promise<void> {
    // Load project info
    try {
      const projectinfoInstance = new plugins.projectinfo.ProjectInfo(paths.cwd);
      this.projectInfo = {
        npm: {
          name: projectinfoInstance.npm.name,
          version: projectinfoInstance.npm.version,
        },
      };
    } catch (err) {
      logger.log('warn', 'Could not load project info');
      this.projectInfo = null;
    }

    // Load registries from environment
    this.registryStorage.loadFromEnv();

    // Add registries from config if specified
    if (this.config.registries) {
      for (const registryUrl of this.config.registries) {
        // Check if already loaded from env
        if (!this.registryStorage.getRegistryByUrl(registryUrl)) {
          // Try to load credentials for this registry from env
          const envVarName = registryUrl.replace(/\./g, '_').toUpperCase();
          const envString = process.env[`DOCKER_REGISTRY_${envVarName}`];
          if (envString) {
            try {
              const registry = DockerRegistry.fromEnvString(envString);
              this.registryStorage.addRegistry(registry);
            } catch (err) {
              logger.log('warn', `Could not load credentials for registry ${registryUrl}`);
            }
          }
        }
      }
    }

    logger.log('info', `Prepared TsDockerManager with ${this.registryStorage.getAllRegistries().length} registries`);
  }

  /**
   * Logs in to all configured registries
   */
  public async login(): Promise<void> {
    if (this.registryStorage.getAllRegistries().length === 0) {
      logger.log('warn', 'No registries configured');
      return;
    }
    await this.registryStorage.loginAll();
  }

  /**
   * Discovers and sorts Dockerfiles in the current directory
   */
  public async discoverDockerfiles(): Promise<Dockerfile[]> {
    this.dockerfiles = await Dockerfile.readDockerfiles(this);
    this.dockerfiles = await Dockerfile.sortDockerfiles(this.dockerfiles);
    this.dockerfiles = await Dockerfile.mapDockerfiles(this.dockerfiles);
    return this.dockerfiles;
  }

  /**
   * Builds all discovered Dockerfiles in dependency order
   */
  public async build(): Promise<Dockerfile[]> {
    if (this.dockerfiles.length === 0) {
      await this.discoverDockerfiles();
    }

    if (this.dockerfiles.length === 0) {
      logger.log('warn', 'No Dockerfiles found');
      return [];
    }

    // Check if buildx is needed
    if (this.config.platforms && this.config.platforms.length > 1) {
      await this.ensureBuildx();
    }

    logger.log('info', `Building ${this.dockerfiles.length} Dockerfiles...`);
    await Dockerfile.buildDockerfiles(this.dockerfiles);
    logger.log('success', 'All Dockerfiles built successfully');

    return this.dockerfiles;
  }

  /**
   * Ensures Docker buildx is set up for multi-architecture builds
   */
  private async ensureBuildx(): Promise<void> {
    logger.log('info', 'Setting up Docker buildx for multi-platform builds...');

    // Check if a buildx builder exists
    const inspectResult = await smartshellInstance.exec('docker buildx inspect tsdocker-builder 2>/dev/null');

    if (inspectResult.exitCode !== 0) {
      // Create a new buildx builder
      logger.log('info', 'Creating new buildx builder...');
      await smartshellInstance.exec('docker buildx create --name tsdocker-builder --use');
      await smartshellInstance.exec('docker buildx inspect --bootstrap');
    } else {
      // Use existing builder
      await smartshellInstance.exec('docker buildx use tsdocker-builder');
    }

    logger.log('ok', 'Docker buildx ready');
  }

  /**
   * Pushes all built images to specified registries
   */
  public async push(registryUrls?: string[]): Promise<void> {
    if (this.dockerfiles.length === 0) {
      await this.discoverDockerfiles();
    }

    if (this.dockerfiles.length === 0) {
      logger.log('warn', 'No Dockerfiles found to push');
      return;
    }

    // Determine which registries to push to
    let registriesToPush: DockerRegistry[] = [];

    if (registryUrls && registryUrls.length > 0) {
      // Push to specified registries
      for (const url of registryUrls) {
        const registry = this.registryStorage.getRegistryByUrl(url);
        if (registry) {
          registriesToPush.push(registry);
        } else {
          logger.log('warn', `Registry ${url} not found in storage`);
        }
      }
    } else {
      // Push to all configured registries
      registriesToPush = this.registryStorage.getAllRegistries();
    }

    if (registriesToPush.length === 0) {
      logger.log('warn', 'No registries available to push to');
      return;
    }

    // Push each Dockerfile to each registry
    for (const dockerfile of this.dockerfiles) {
      for (const registry of registriesToPush) {
        await dockerfile.push(registry);
      }
    }

    logger.log('success', 'All images pushed successfully');
  }

  /**
   * Pulls images from a specified registry
   */
  public async pull(registryUrl: string): Promise<void> {
    if (this.dockerfiles.length === 0) {
      await this.discoverDockerfiles();
    }

    const registry = this.registryStorage.getRegistryByUrl(registryUrl);
    if (!registry) {
      throw new Error(`Registry ${registryUrl} not found`);
    }

    for (const dockerfile of this.dockerfiles) {
      await dockerfile.pull(registry);
    }

    logger.log('success', 'All images pulled successfully');
  }

  /**
   * Runs tests for all Dockerfiles
   */
  public async test(): Promise<void> {
    if (this.dockerfiles.length === 0) {
      await this.discoverDockerfiles();
    }

    if (this.dockerfiles.length === 0) {
      logger.log('warn', 'No Dockerfiles found to test');
      return;
    }

    await Dockerfile.testDockerfiles(this.dockerfiles);
    logger.log('success', 'All tests completed');
  }

  /**
   * Lists all discovered Dockerfiles and their info
   */
  public async list(): Promise<Dockerfile[]> {
    if (this.dockerfiles.length === 0) {
      await this.discoverDockerfiles();
    }

    console.log('\nDiscovered Dockerfiles:');
    console.log('========================\n');

    for (let i = 0; i < this.dockerfiles.length; i++) {
      const df = this.dockerfiles[i];
      console.log(`${i + 1}. ${df.filePath}`);
      console.log(`   Tag: ${df.cleanTag}`);
      console.log(`   Base Image: ${df.baseImage}`);
      console.log(`   Version: ${df.version}`);
      if (df.localBaseImageDependent) {
        console.log(`   Depends on: ${df.localBaseDockerfile?.cleanTag}`);
      }
      console.log('');
    }

    return this.dockerfiles;
  }

  /**
   * Gets the cached Dockerfiles (after discovery)
   */
  public getDockerfiles(): Dockerfile[] {
    return this.dockerfiles;
  }
}