#!/usr/bin/env node

require('colors');
var path = require('path');
var mout = require('mout');
var pkg = require(path.join(__dirname, '..', 'package.json'));
var cli = require('../lib/util/cli');
var commands = require('../lib/commands');
var updateNotifier = require('update-notifier');

// --------

var options;
var command;
var renderer;
var levels;
var notifier = updateNotifier({ packageName: pkg.name, packageVersion: pkg.version });

process.title = 'bower';

// Read CLI options
options = cli.readOptions(process.argv, {
    version: { type: Boolean, shorthand: 'v' }
});

// Handle print of version
if (options.version) {
    process.stdout.write(pkg.version + '\n');
    process.exit();
}

// Parse log levels
if (mout.object.hasOwn(options, 'log-levels')) {
    levels = (options['log-levels'] || '')
    .split(',')
    .map(function (level) { return level.trim(); });
} else {
    levels = ['action', 'warn'];
}

// Get the command to execute
// TODO: abbreviations
command = options.argv.remain && options.argv.remain.shift();
command = commands[command] || commands.help;

// Get the renderer
renderer = cli.getRenderer(options);

// Execute the command
renderer.begin();

command.line(process.argv)
.on('data', function (data) {
    var func;

    // Check if this log level is allowed
    if (levels && levels.indexOf(data.level) === -1) {
        return;
    }

    // Attempt to use renderer function specified by the tag
    // Fallback to renderer.data if not found
    func = mout.string.camelCase(data.tag);
    if (!renderer[func]) {
        func = 'data';
    }

    renderer[func](data);
})
.on('end', function (data) {
    renderer.end(data);
})
.on('error', function (err)  {
    err.label = 'error';
    err.tag = err.code ? err.code.toLowerCase() : 'error';

    renderer.error(err);
    process.exit(1);
});

if (notifier.update) {
    // TODO: This single line is inadequate. Make it more like it is in master.
    //       I haven't done that until we have templating sorted.
    renderer.data({
        level: 'warn',
        tag: 'update available',
        data: notifier.update.latest + ' (current: ' + notifier.update.current + ')'
    });
}