var path = require('path');

var fs = require('fs');

var falafel = require('falafel');

var glob = require('glob');

var constants = require('../tasks/util/constants');

var srcGlob = path.join(constants.pathToSrc, '**/*.js');

var libGlob = path.join(constants.pathToLib, '**/*.js');

var testGlob = path.join(constants.pathToJasmineTests, '**/*.js');

var bundleTestGlob = path.join(constants.pathToJasmineBundleTests, '**/*.js');

// main

assertJasmineSuites();

assertHeaders();

assertFileNames();

// check for for focus and exclude jasmine blocks

function assertJasmineSuites() {

var BLACK_LIST = ['fdescribe', 'fit', 'xdescribe', 'xit'];

var logs = [];

glob(combineGlobs([testGlob, bundleTestGlob]), function(err, files) {

files.forEach(function(file) {

var code = fs.readFileSync(file, 'utf-8');

falafel(code, {locations: true}, function(node) {

if(node.type === 'Identifier' && BLACK_LIST.indexOf(node.name) !== -1) {

logs.push([

path.basename(file),

'[line ' + node.loc.start.line + '] :',

'contains either a *fdescribe*, *fit*,',

'*xdescribe* or *xit* block.'

].join(' '));

}

});

});

log(logs);

});

}

// check for header in src and lib files

function assertHeaders() {

var licenseSrc = constants.licenseSrc;

var licenseStr = licenseSrc.substring(2, licenseSrc.length - 2);

var logs = [];

glob(combineGlobs([srcGlob, libGlob]), function(err, files) {

files.forEach(function(file) {

var code = fs.readFileSync(file, 'utf-8');

// parse through code string while keeping track of comments

var comments = [];

falafel(code, {onComment: comments, locations: true}, function() {});

var header = comments[0];

if(!header || header.loc.start.line > 1) {

logs.push(file + ' : has no header information.');

return;

}

if(header.value !== licenseStr) {

logs.push(file + ' : has incorrect header information.');

}

});

log(logs);

});

}

// check that all file names are in lower case

function assertFileNames() {

var logs = [];

glob(combineGlobs([srcGlob, libGlob, testGlob, bundleTestGlob]), function(err, files) {

files.forEach(function(file) {

var base = path.basename(file);

if(base !== base.toLowerCase()) {

logs.push([

file, ' :',

'has a file name containing some',

'non-lower-case characters'

]);

}

});

log(logs);

});

}

function combineGlobs(arr) {

return '{' + arr.join(',') + '}';

}

function log(logs) {

if(logs.length) {

throw new Error('\n' + logs.join('\n') + '\n');

}

}