'use strict';
const fs = require('fs');
const path = require('path');
module.exports = function(environment) {
  const isDevLike = ['development', 'staging', 'test'].indexOf(environment) > -1;
  const isProdLike = ['production', 'staging'].indexOf(environment) > -1;
  let ENV = {
    modulePrefix: 'consul-ui',
    environment,
    rootURL: '/ui/',
    locationType: 'auto',
    EmberENV: {
      FEATURES: {
        // Here you can enable experimental features on an ember canary build
        // e.g. EMBER_NATIVE_DECORATOR_SUPPORT: true
      },
      EXTEND_PROTOTYPES: {
        // Prevent Ember Data from overriding Date.parse.
        Date: false,
      },
    },

    APP: {
      // Here you can pass flags/options to your application instance
      // when it is created
    },
    resizeServiceDefaults: {
      injectionFactories: ['view', 'controller', 'component'],
    },
  };
  // TODO: These should probably go onto APP
  ENV = Object.assign({}, ENV, {
    // TODO: Let people alter this, as with anchor selection
    CONSUL_UI_DISABLE_REALTIME: false,
    CONSUL_UI_DISABLE_ANCHOR_SELECTION:
      typeof process.env.CONSUL_UI_DISABLE_ANCHOR_SELECTION !== 'undefined',
    CONSUL_GIT_SHA: (function() {
      if (process.env.CONSUL_GIT_SHA) {
        return process.env.CONSUL_GIT_SHA;
      }

      return require('child_process')
        .execSync('git rev-parse --short HEAD')
        .toString()
        .trim();
    })(),
    CONSUL_VERSION: (function() {
      if (process.env.CONSUL_VERSION) {
        return process.env.CONSUL_VERSION;
      }
      // see /scripts/dist.sh:8
      const version_go = `${path.dirname(path.dirname(__dirname))}/version/version.go`;
      const contents = fs.readFileSync(version_go).toString();
      return contents
        .split('\n')
        .find(function(item, i, arr) {
          return item.indexOf('Version =') !== -1;
        })
        .trim()
        .split('"')[1];
    })(),
    CONSUL_BINARY_TYPE: (function() {
      if (process.env.CONSUL_BINARY_TYPE) {
        return process.env.CONSUL_BINARY_TYPE;
      }
      return 'oss';
    })(),
    CONSUL_ACLS_ENABLED: false,
    CONSUL_NSPACES_ENABLED: false,
    CONSUL_HOME_URL: 'https://www.consul.io',
    CONSUL_DOCS_URL: 'https://www.consul.io/docs',
    CONSUL_DOCS_LEARN_URL: 'https://learn.hashicorp.com/consul',
    CONSUL_DOCS_API_URL: 'https://www.consul.io/api',
    CONSUL_COPYRIGHT_URL: 'https://www.hashicorp.com',
    CONSUL_COPYRIGHT_YEAR: '2019',
  });
  switch (true) {
    case isDevLike:
      ENV = Object.assign({}, ENV, {
        CONSUL_NSPACES_ENABLED: true,
        CONSUL_ACLS_ENABLED: true,
      });
      // ENV.APP.LOG_RESOLVER = true;
      // ENV.APP.LOG_ACTIVE_GENERATION = true;
      // ENV.APP.LOG_TRANSITIONS = true;
      // ENV.APP.LOG_TRANSITIONS_INTERNAL = true;
      // ENV.APP.LOG_VIEW_LOOKUPS = true;
      break;
    case isProdLike:
      break;
  }
  // TODO: Move this to use switch once the production forking
  // below has been uncommented (once ACLs and NSPACEs flags are passed through)
  if (environment === 'test') {
    // Testem prefers this...
    ENV.locationType = 'none';

    // keep test console output quieter
    ENV.APP.LOG_ACTIVE_GENERATION = false;
    ENV.APP.LOG_VIEW_LOOKUPS = false;

    ENV.APP.rootElement = '#ember-testing';
    ENV.APP.autoboot = false;
    ENV['@hashicorp/ember-cli-api-double'] = {
      'auto-import': false,
      enabled: true,
      endpoints: ['/node_modules/@hashicorp/consul-api-double/v1'],
    };
  }
  if (environment === 'staging') {
    ENV['@hashicorp/ember-cli-api-double'] = {
      enabled: true,
      endpoints: ['/node_modules/@hashicorp/consul-api-double/v1'],
    };
  }

  if (environment === 'production') {
    ENV = Object.assign(
      {},
      ENV,
      {
        CONSUL_ACLS_ENABLED: '{{.ACLsEnabled}}',
        CONSUL_NSPACES_ENABLED: '{{ if .NamespacesEnabled }}{{.NamespacesEnabled}}{{ else }}false{{ end }}'
      }
    );
    // here you can enable a production-specific feature
  }
  return ENV;
};