'use strict';

require('../../support/test-helper');

const assert = require('../../support/assert');
const TestClient = require('../../support/test-client');

const ONE_YEAR_IN_SECONDS = 60 * 60 * 24 * 365;
const FIVE_MINUTES_IN_SECONDS = 60 * 5;

const defaultLayers = [{
    type: 'cartodb',
    options: {
        sql: TestClient.SQL.ONE_POINT,
        cartocss: TestClient.CARTOCSS.POINTS,
        cartocss_version: '2.3.0'
    }
}];
const defaultDatavies = {};
const defaultAnalyses = [];

function createMapConfig ({
    layers = defaultLayers,
    dataviews = defaultDatavies,
    analyses = defaultAnalyses
} = {}) {
    return {
        version: '1.8.0',
        layers: layers,
        dataviews: dataviews || {},
        analyses: analyses || []
    };
}

describe('cache-control header', function () {
    describe('max-age directive', function () {
        it('tile from a table which is included in cdb_tablemetada', function (done) {
            const ttl = ONE_YEAR_IN_SECONDS;
            const mapConfig = createMapConfig({
                layers: [{
                    type: 'cartodb',
                    options: {
                        sql: 'select * from test_table',
                        cartocss: TestClient.CARTOCSS.POINTS,
                        cartocss_version: '2.3.0'
                    }
                }]
            });

            const testClient = new TestClient(mapConfig);

            testClient.getTile(0, 0, 0, {}, function (err, res) {
                if (err) {
                    return done(err);
                }

                assert.equal(res.headers['cache-control'], `public,max-age=${ttl}`);
                testClient.drain(done);
            });
        });

        it('tile from a table which is NOT included in cdb_tablemetada', function (done) {
            const ttl = global.environment.varnish.fallbackTtl || FIVE_MINUTES_IN_SECONDS;
            const mapConfig = createMapConfig({
                layers: [{
                    type: 'cartodb',
                    options: {
                        sql: 'select * from test_table_2',
                        cartocss: TestClient.CARTOCSS.POINTS,
                        cartocss_version: '2.3.0'
                    }
                }]
            });

            const testClient = new TestClient(mapConfig);

            testClient.getTile(0, 0, 0, {}, function (err, res) {
                if (err) {
                    return done(err);
                }

                const cacheControl = res.headers['cache-control'];
                const [ type, maxAge ] = cacheControl.split(',');
                const [ key, value ] = maxAge.split('=');

                assert.ok(Number(value) <= ttl);

                testClient.drain(done);
            });
        });

        it('tile from joined tables which one of them is NOT included in cdb_tablemetada', function (done) {
            const ttl = global.environment.varnish.fallbackTtl || FIVE_MINUTES_IN_SECONDS;
            const mapConfig = createMapConfig({
                layers: [{
                    type: 'cartodb',
                    options: {
                        sql: `
                            select
                                t.cartodb_id,
                                t.the_geom,
                                t.the_geom_webmercator
                            from
                                test_table t,
                                test_table_2 t2
                            where
                                t.cartodb_id = t2.cartodb_id
                        `,
                        cartocss: TestClient.CARTOCSS.POINTS,
                        cartocss_version: '2.3.0'
                    }
                }]
            });

            const testClient = new TestClient(mapConfig);

            testClient.getTile(0, 0, 0, {}, function (err, res) {
                if (err) {
                    return done(err);
                }

                const cacheControl = res.headers['cache-control'];
                const [ type, maxAge ] = cacheControl.split(',');
                const [ key, value ] = maxAge.split('=');

                assert.ok(Number(value) <= ttl);

                testClient.drain(done);
            });
        });

        it('tile from a dynamic query which doesn\'t use a table' , function (done) {
            const ttl = ONE_YEAR_IN_SECONDS;
            const mapConfig = createMapConfig();

            const testClient = new TestClient(mapConfig);

            testClient.getTile(0, 0, 0, {}, function (err, res) {
                if (err) {
                    return done(err);
                }

                assert.equal(res.headers['cache-control'], `public,max-age=${ttl}`);
                testClient.drain(done);
            });
        });

        it('tile from a cached analysis table which is not included in cdb_tablemetada', function (done) {
            const ttl = ONE_YEAR_IN_SECONDS;
            const mapConfig = createMapConfig({
                layers: [{
                    type: 'cartodb',
                    options: {
                        source: {
                            id: 'HEAD'
                        },
                        cartocss: TestClient.CARTOCSS.POINTS,
                        cartocss_version: '2.3.0'
                    }
                }],
                analyses: [{
                    id: 'HEAD',
                    type: 'buffer',
                    params: {
                        source: {
                            id: 'source_1',
                            type: 'source',
                            params: {
                                query: 'select * from test_table'
                            }
                        },
                        radius: 60000
                    }
                }]
            });

            const testClient = new TestClient(mapConfig, 1234);

            testClient.getTile(0, 0, 0, {}, function (err, res) {
                if (err) {
                    return done(err);
                }

                assert.equal(res.headers['cache-control'], `public,max-age=${ttl}`);
                testClient.drain(done);
            });
        });
    });
});