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[rbdr/blog] / lib / remote.js

const { readFile, writeFile } = require('fs/promises');
const { rmIfExists } = require('./utils');

const internals = {
  strings: {
    configurationNotFound: 'Remote configuration not set, consult help for more info.'
  },
  strategies: [
    require('./remotes/git')
  ]
};

module.exports = {
  async add(remoteConfig, remote) {

    await writeFile(remoteConfig, remote);
  },

  async remove(remoteConfig) {

    await rmIfExists(remoteConfig);
  },

  async syncUp(remoteConfig, blogDirectory) {

    await this._executeMethodOnStrategy(remoteConfig, 'syncUp', blogDirectory);
  },

  async syncDown(remoteConfig, blogDirectory) {

    await this._executeMethodOnStrategy(remoteConfig, 'syncDown', blogDirectory);
  },

  async _executeMethodOnStrategy(remoteConfig, method, blogDirectory) {

    const remote = await this._ensureConfiguration(remoteConfig);

    for (const strategy of internals.strategies) {
      if (strategy.canHandle(remote)) {
        await strategy[method](remote, blogDirectory);
      }
    }
  },

  async _ensureConfiguration(remoteConfig) {

    try {
      const configuration = await readFile(remoteConfig, { encoding: 'utf8' });
      return configuration;
    }
    catch {
      throw new Error(internals.strings.configurationNotFound);
    }
  }
}