/*jshint esversion: 6 */
 const path = require('path');
 const fs = require('fs-extra');

 const PUBLIC = `public`;
 const pathOfPublic = path.join(__dirname, '..', PUBLIC);


 // validating version 4
 //  function validateV4() {

 //      const version = '2';
 //      const pathOfVersion = path.join(pathOfPublic, 'v' + version);
 //      const pathOfApps = path.join(pathOfVersion, 'apps');

 //      return fs.readdir(pathOfApps)
 //          .then(function (items) {

 //              const apps = items.filter(v => v.includes('.json'));

 //              for (var i = 0; i < apps.length; i++) {
 //                  const contentString = fs.readFileSync(path.join(pathOfApps, apps[i]));
 //                  const content = JSON.parse(contentString);
 //                  const captainVersion = (content.captainVersion + '');
 //                  const versionString = (version + '');
 //                  if (versionString !== captainVersion)
 //                      throw new Error(`unmatched versions   ${versionString}  ${captainVersion} for ${apps[i]}`);

 //                  apps[i] = apps[i].replace('.json', '');

 //                  if (!content.description){
 //                     throw new Error(`Cannot find description for ${apps[i]}`);
 //                  }

 //                  const logoFileName = apps[i] + '.png';

 //                  const logoFullPath = path.join(pathOfVersion, 'logos', logoFileName);

 //                  if (!fs.existsSync(logoFullPath) ||
 //                      !fs.statSync(logoFullPath).isFile()) {
 //                      let printablePath = logoFullPath;
 //                      printablePath = printablePath.substr(printablePath.indexOf(`/${PUBLIC}`));
 //                      throw new Error(`Cannot find logo for ${apps[i]} ${printablePath}`);
 //                  }

 //                  console.log(`Validated ${apps[i]}`);

 //              }

 //          });
 //  }

 // validating version 2
 function validateV2() {

     const version = '2';
     const pathOfVersion = path.join(pathOfPublic, 'v' + version);
     const pathOfApps = path.join(pathOfVersion, 'apps');

     return fs.readdir(pathOfApps)
         .then(function (items) {

             const apps = items.filter(v => v.includes('.json'));

             for (var i = 0; i < apps.length; i++) {
                 const contentString = fs.readFileSync(path.join(pathOfApps, apps[i]));
                 const content = JSON.parse(contentString);
                 const captainVersion = (content.captainVersion + '');
                 const versionString = (version + '');
                 if (versionString !== captainVersion)
                     throw new Error(`unmatched versions   ${versionString}  ${captainVersion} for ${apps[i]}`);

                 apps[i] = apps[i].replace('.json', '');

                 if (!content.description) {
                     throw new Error(`Cannot find description for ${apps[i]}`);
                 }

                 const logoFileName = apps[i] + '.png';

                 const logoFullPath = path.join(pathOfVersion, 'logos', logoFileName);

                 if (!fs.existsSync(logoFullPath) ||
                     !fs.statSync(logoFullPath).isFile()) {
                     let printablePath = logoFullPath;
                     printablePath = printablePath.substr(printablePath.indexOf(`/${PUBLIC}`));
                     throw new Error(`Cannot find logo for ${apps[i]} ${printablePath}`);
                 }

                 console.log(`Validated ${apps[i]}`);

             }

         });
 }

 Promise.resolve()
     .then(function () {
         return validateV2();
     })
     .catch(function (err) {
         console.error(err);
         process.exit(127);
     });