import * as plugins from './plugins.js';
import * as paths from './paths.js';
import { logger } from './logging.js';

export interface IPublishModuleOptions {
  monoRepoDir: string;
  packageSubFolder: string;
  packageSubFolderFullPath?: string;
  publishModDirFullPath?: string;
  name?: string;
  version?: string;
  dependencies?: { [key: string]: string };
}

export class PublishModule {
  public options: IPublishModuleOptions;
  constructor(options: IPublishModuleOptions) {
    this.options = options;
  }

  public async init() {
    this.options.packageSubFolderFullPath = plugins.path.join(
      this.options.monoRepoDir,
      this.options.packageSubFolder
    );

    // check requirements
    if (!this.options.packageSubFolder.startsWith('ts')) {
      throw new Error('subFolder must start with "ts"');
    }
    const jsonData = plugins.smartfile.fs.toObjectSync(
      plugins.path.join(this.options.packageSubFolderFullPath, 'tspublish.json')
    );
    const monoRepoPackageJson = JSON.parse(
      plugins.smartfile.fs.toStringSync(plugins.path.join(this.options.monoRepoDir, 'package.json'))
    )
    this.options.dependencies = {
      ...this.options.dependencies,
      ...(() => {
        const resultDependencies = {};
        for (const dependency of jsonData.dependencies) {
          resultDependencies[dependency] = monoRepoPackageJson.dependencies[dependency];
        }
        return resultDependencies;
      })()
    };
    this.options.name = this.options.name || jsonData.name;
    this.options.version = monoRepoPackageJson.version;

    // now that we have a name and version, lets check if there is already a package under the same name and version.
    const smartnpmInstance = new plugins.smartnpm.NpmRegistry({}); // TODO: pass in options
    const packageInfo = await smartnpmInstance.getPackageInfo(this.options.name);
    if (packageInfo) {
      const availableVersions = packageInfo.allVersions.map((versionArg) => versionArg.version);
      logger.log('info', `available versions are: ${availableVersions.toString()}`);
      if (availableVersions.includes(this.options.version)) {
        throw new Error(
          `package ${this.options.name} already exists with version ${this.options.version}`
        );
      }
    }
  }

  public async getLatestVersionOfPackage(name: string) {
    const smartnpmInstance = new plugins.smartnpm.NpmRegistry({}); // TODO: pass in options
    const packageInfo = await smartnpmInstance.getPackageInfo(name);
    if (!packageInfo) {
      throw new Error(`package ${name} not found`);
    }
    return packageInfo.allVersions[0].version;
  }

  public async createPackageJson() {
    const packageJson = {
      name: this.options.name,
      version: this.options.version,
      description: '',
      exports: {
        '.': {
          import: './dist_${this.options.packageSubFolder}/index.js',
        },
      },
      scripts: {
        build: 'tsbuild tsfolders --allowimplicitany',
      },
      dependencies: this.options.dependencies,
      devDependencies: {
        '@git.zone/tsbuild': await this.getLatestVersionOfPackage('@git.zone/tsbuild'),
      },
    };
    return JSON.stringify(packageJson, null, 2);
  }

  public async createPublishModuleDir() {
    this.options.publishModDirFullPath = plugins.path.join(
      this.options.monoRepoDir,
      `dist_publish_${this.options.packageSubFolder}`
    );
    
    // package.json
    await plugins.smartfile.fs.ensureEmptyDir(this.options.publishModDirFullPath);
    const packageJson = await plugins.smartfile.SmartFile.fromString(
      plugins.path.join(this.options.publishModDirFullPath, 'package.json'),
      await this.createPackageJson(),
      'utf8'
    );

    // ts folder
    await plugins.smartfile.fs.copy(this.options.packageSubFolderFullPath, plugins.path.join(this.options.publishModDirFullPath, this.options.packageSubFolder)) 
  }

  public async build() {
    const smartshellInstance = new plugins.smartshell.Smartshell({
      executor: 'bash',
    })
    await smartshellInstance.exec(`cd ${this.options.publishModDirFullPath} && pnpm run build`);
  }

  public async publish() {
    const smartshellInstance = new plugins.smartshell.Smartshell({
      executor: 'bash',
    })
    await smartshellInstance.exec(`cd ${this.options.publishModDirFullPath} && pnpm publish`);
  }
}