"use strict";

var GitIgnore = require('./library');
var fs = require('fs');
var OS = require('os');

(function() {
  var types = process.argv.slice(2);

  if (!types || types.length === 0) {
    console.log("Usage: gitignore [PROJECT TYPE]");
    console.log("Example: gitignore rails");
    console.log("Available project types can be found by running `gitignore -types` or at https://github.com/github/gitignore");
    return;
  }

  if (/^((--?)?types|-t)$/i.test(types.join())) {
    console.log("Fetching available types...");
    GitIgnore.getTypes(function(err, types){
      if(err){
        if(err.statusCode){
          console.error("Could not access file from GitHub. Recieved status code "+err.statusCode);
        } else {
          console.error("An unexpected error occurred.");
          console.error(err);
        }
        return;
      }
      console.log(types.join(OS.EOL));
    });
  } else {
    types.forEach(function(type) {
      type = type.charAt(0).toUpperCase() + type.slice(1);
      var file = fs.createWriteStream(".gitignore", {'flags': 'a'});
      GitIgnore.writeFile({
        type: type,
        file: file
      }, function(err){
        if(err){
          if(err.statusCode){
            console.log("There is no gitignore for " + type);
            console.log("Available project types can be found by running `gitignore -types` or at https://github.com/github/gitignore");
            console.error("Recieved status code "+err.statusCode);
          } else {
            console.error("An unexpected error occurred.");
            console.error(err);
          }
          return;
        }
        console.log("Created .gitignore file for type "+type+" :)");
      });
    });
  }

}).call(this);