const msRestNodeAuth = require("@azure/ms-rest-nodeauth");
const { CosmosDBManagementClient } = require("@azure/arm-cosmosdb");
const ms = require("ms");

const subscriptionId = process.env["AZURE_SUBSCRIPTION_ID"];
const resourceGroupName = "runners";

const thirtyMinutesAgo = new Date(Date.now() - 1000 * 60 * 30).getTime();

function friendlyTime(date) {
  try {
    return ms(date);
  } catch (error) {
    return "Unknown";
  }
}

async function main() {
  const credentials = await msRestNodeAuth.AzureCliCredentials.create();
  const client = new CosmosDBManagementClient(credentials, subscriptionId);
  const accounts = await client.databaseAccounts.list(resourceGroupName);
  for (const account of accounts) {
    if (account.kind === "MongoDB") {
      const mongoDatabases = await client.mongoDBResources.listMongoDBDatabases(resourceGroupName, account.name);
      for (const database of mongoDatabases) {
        // Unfortunately Mongo does not provide a timestamp in ARM. There is no way to tell how old the DB is other thn encoding it in the ID :(
        const timestamp = Number(database.name.split("-")[1]);
        if (timestamp && timestamp < thirtyMinutesAgo) {
          await client.mongoDBResources.deleteMongoDBDatabase(resourceGroupName, account.name, database.name);
          console.log(`DELETED: ${account.name} | ${database.name} | Age: ${friendlyTime(Date.now() - timestamp)}`);
        } else {
          console.log(`SKIPPED: ${account.name} | ${database.name} | Age: ${friendlyTime(Date.now() - timestamp)}`);
        }
      }
    } else if (account.capabilities.find((c) => c.name === "EnableCassandra")) {
      const cassandraDatabases = await client.cassandraResources.listCassandraKeyspaces(
        resourceGroupName,
        account.name,
      );
      for (const database of cassandraDatabases) {
        const timestamp = Number(database.resource._ts) * 1000;
        if (timestamp && timestamp < thirtyMinutesAgo) {
          await client.cassandraResources.deleteCassandraKeyspace(resourceGroupName, account.name, database.name);
          console.log(`DELETED: ${account.name} | ${database.name} | Age: ${friendlyTime(Date.now() - timestamp)}`);
        } else {
          console.log(`SKIPPED: ${account.name} | ${database.name} | Age: ${friendlyTime(Date.now() - timestamp)}`);
        }
      }
    } else if (account.capabilities.find((c) => c.name === "EnableTable")) {
      const tablesDatabase = await client.tableResources.listTables(resourceGroupName, account.name);
      for (const database of tablesDatabase) {
        const timestamp = Number(database.resource._ts) * 1000;
        if (timestamp && timestamp < thirtyMinutesAgo) {
          await client.tableResources.deleteTable(resourceGroupName, account.name, database.name);
          console.log(`DELETED: ${account.name} | ${database.name} | Age: ${friendlyTime(Date.now() - timestamp)}`);
        } else {
          console.log(`SKIPPED: ${account.name} | ${database.name} | Age: ${friendlyTime(Date.now() - timestamp)}`);
        }
      }
    } else if (account.capabilities.find((c) => c.name === "EnableGremlin")) {
      const graphDatabases = await client.gremlinResources.listGremlinDatabases(resourceGroupName, account.name);
      for (const database of graphDatabases) {
        const timestamp = Number(database.resource._ts) * 1000;
        if (timestamp && timestamp < thirtyMinutesAgo) {
          await client.gremlinResources.deleteGremlinDatabase(resourceGroupName, account.name, database.name);
          console.log(`DELETED: ${account.name} | ${database.name} | Age: ${friendlyTime(Date.now() - timestamp)}`);
        } else {
          console.log(`SKIPPED: ${account.name} | ${database.name} | Age: ${friendlyTime(Date.now() - timestamp)}`);
        }
      }
    } else if (account.kind === "GlobalDocumentDB") {
      const sqlDatabases = await client.sqlResources.listSqlDatabases(resourceGroupName, account.name);
      for (const database of sqlDatabases) {
        const timestamp = Number(database.resource._ts) * 1000;
        if (timestamp && timestamp < thirtyMinutesAgo) {
          await client.sqlResources.deleteSqlDatabase(resourceGroupName, account.name, database.name);
          console.log(`DELETED: ${account.name} | ${database.name} | Age: ${friendlyTime(Date.now() - timestamp)}`);
        } else {
          console.log(`SKIPPED: ${account.name} | ${database.name} | Age: ${friendlyTime(Date.now() - timestamp)}`);
        }
      }
    }
  }
}

main()
  .then(() => {
    console.log("Completed");
    process.exit(0);
  })
  .catch((err) => {
    console.log(err);
    console.log("Cleanup failed! Exiting with success. Cleanup should always fail safe.");
    process.exit(0);
  });