import { loadTasks } from "../loader";
import { createDatabase, dumpDatabase } from "../database/serializer";
import { loadDatabase } from "../database/deserializer";
import { remind } from "../backend";
import { Config, ProfileConfig } from "../types/config";

export const test = handleProfile(async config => {
  const tasks = await loadTasks(config.sources, config.query, config.exclude);
  const db = createDatabase(tasks);

  for (const time of Object.keys(db)) {
    console.log(time);
    
    for (const task of db[time]) {
      console.log(task.toString());      
    }

    console.log();
  }
});

export const scan = handleProfile(async config => {
  const tasks = await loadTasks(config.sources, config.query, config.exclude);  
  dumpDatabase(config.databaseFile, tasks);
});

export const notify = handleProfile(async config => {
  const db = loadDatabase(config.databaseFile);
  remind(config, db);
});

function handleProfile(handler: (profile: ProfileConfig) => Promise<void>) {
  return async (config: Config, profile?: string) => {
    if (profile !== undefined) {
      const cfg = config.profiles[profile];

      if (cfg === undefined) {
        throw new Error(`Undefined profile: ${profile}`);      
      }

      return handler(cfg);
    }

    return await Promise.all(Object.values(config.profiles).map(handler));
  };
}