'use strict';

exports = module.exports = {
    start,

    DEFAULT_MEMORY_LIMIT: 256 * 1024 * 1024
};

var assert = require('assert'),
    async = require('async'),
    infra = require('./infra_version.js'),
    paths = require('./paths.js'),
    shell = require('./shell.js'),
    system = require('./system.js');

function start(existingInfra, serviceConfig, callback) {
    assert.strictEqual(typeof existingInfra, 'object');
    assert.strictEqual(typeof serviceConfig, 'object');
    assert.strictEqual(typeof callback, 'function');

    const tag = infra.images.graphite.tag;
    const memoryLimit = serviceConfig.memoryLimit || exports.DEFAULT_MEMORY_LIMIT;
    const memory = system.getMemoryAllocation(memoryLimit);

    const cmd = `docker run --restart=always -d --name="graphite" \
                --hostname graphite \
                --net cloudron \
                --net-alias graphite \
                --log-driver syslog \
                --log-opt syslog-address=udp://127.0.0.1:2514 \
                --log-opt syslog-format=rfc5424 \
                --log-opt tag=graphite \
                -m ${memory} \
                --memory-swap ${memoryLimit} \
                --dns 172.18.0.1 \
                --dns-search=. \
                -p 127.0.0.1:2003:2003 \
                -p 127.0.0.1:2004:2004 \
                -p 127.0.0.1:8417:8000 \
                -v "${paths.PLATFORM_DATA_DIR}/graphite:/var/lib/graphite" \
                --label isCloudronManaged=true \
                --read-only -v /tmp -v /run "${tag}"`;

    async.series([
        shell.exec.bind(null, 'stopGraphite', 'docker stop graphite || true'),
        shell.exec.bind(null, 'removeGraphite', 'docker rm -f graphite || true'),
        shell.exec.bind(null, 'startGraphite', cmd)
    ], callback);
}