const assert = require('assert');
const util = require('./../util/util.js');
const API = require('./../../api.js');
const detect = require('detect-port');
const Ganache = require('ganache-cli');

describe('api', () => {
  let opts;

  beforeEach(() => opts = {silent: true})

  it('getInstrumentationData', function(){
    const api = new API(opts);
    const canonicalPath = 'statements/single.sol'
    const source = util.getCode(canonicalPath);

    api.instrument([{
      source: source,
      canonicalPath: canonicalPath
    }]);

    const data = api.getInstrumentationData();

    const hash = Object.keys(data)[0];
    assert(data[hash].hits === 0);
  });

  it('setInstrumentationData', function(){
    let api = new API(opts);

    const canonicalPath = 'statements/single.sol'
    const source = util.getCode(canonicalPath);

    api.instrument([{
      source: source,
      canonicalPath: canonicalPath
    }]);

    const cloneA = api.getInstrumentationData();
    const hash = Object.keys(cloneA)[0];

    // Verify cloning
    cloneA[hash].hits = 5;
    const cloneB = api.getInstrumentationData();
    assert(cloneB[hash].hits === 0);

    // Verify setting
    api = new API(opts);
    api.instrument([{
      source: source,
      canonicalPath: canonicalPath
    }]);

    api.setInstrumentationData(cloneA);
    const cloneC = api.getInstrumentationData();
    assert(cloneC[hash].hits === 5);
  });

  it('ganache: autoLaunchServer === false', async function(){
    const api = new API(opts);
    const port = api.port;
    const server = await api.ganache(Ganache, false);

    assert(typeof port === 'number')
    assert(typeof server === 'object');
    assert(typeof server.listen === 'function');

    const freePort = await detect(port);

    assert(freePort === port);
  });

  it('config: autoLaunchServer: false', async function(){
    opts.autoLaunchServer = false;

    const api = new API(opts);
    const port = api.port;
    const server = await api.ganache(Ganache);

    assert(typeof port === 'number')
    assert(typeof server === 'object');
    assert(typeof server.listen === 'function');

    const freePort = await detect(port);

    assert(freePort === port);
  })

  it('api.utils', async function(){
    const api = new API(opts);
    assert(api.utils.assembleFiles !== undefined)
    assert(api.utils.checkContext !== undefined)
    assert(api.utils.finish !== undefined)
    assert(api.utils.getTempLocations !== undefined)
    assert(api.utils.setupTempFolders !== undefined)
    assert(api.utils.loadSource !== undefined)
    assert(api.utils.loadSolcoverJS !== undefined)
    assert(api.utils.save !== undefined)
  });
})