1: <?php
  2: /**
  3:  * Wei Framework
  4:  *
  5:  * @copyright   Copyright (c) 2008-2015 Twin Huang
  6:  * @license     http://opensource.org/licenses/mit-license.php MIT License
  7:  */
  8: 
  9: namespace Wei;
 10: 
 11: /**
 12:  * A translator wei
 13:  *
 14:  * @author      Twin Huang <twinhuang@qq.com>
 15:  */
 16: class T extends Base
 17: {
 18:     /**
 19:      * The current locale
 20:      *
 21:      * @var string
 22:      */
 23:     protected $locale = 'en';
 24: 
 25:     /**
 26:      * The default locale
 27:      *
 28:      * @var string
 29:      */
 30:     protected $defaultLocale = 'en';
 31: 
 32:     /**
 33:      * The translator messages
 34:      *
 35:      * @var array
 36:      */
 37:     protected $data = array();
 38: 
 39:     /**
 40:      * The loaded translation files
 41:      *
 42:      * @var array
 43:      */
 44:     protected $files = array();
 45: 
 46:     /**
 47:      * Translate a message
 48:      *
 49:      * @param string $message
 50:      * @param array $parameters
 51:      * @return string
 52:      */
 53:     public function __invoke($message, array $parameters = array())
 54:     {
 55:         if (isset($this->data[$message])) {
 56:             $message = $this->data[$message];
 57:         }
 58:         return $parameters ? strtr($message, $parameters) : $message;
 59:     }
 60: 
 61:     /**
 62:      * Translates a message
 63:      *
 64:      * @param string $message
 65:      * @param array $parameters
 66:      * @return string
 67:      */
 68:     public function trans($message, array $parameters = array())
 69:     {
 70:         return $this($message, $parameters);
 71:     }
 72: 
 73:     /**
 74:      * Sets the current locale
 75:      *
 76:      * @param string $locale
 77:      * @return $this
 78:      */
 79:     public function setLocale($locale)
 80:     {
 81:         $this->locale = $locale;
 82:         return $this;
 83:     }
 84: 
 85:     /**
 86:      * Returns the default locale
 87:      *
 88:      * @return string
 89:      */
 90:     public function getLocale()
 91:     {
 92:         return $this->locale;
 93:     }
 94: 
 95:     /**
 96:      * Set the fallback locale
 97:      *
 98:      * @param string $locale
 99:      * @return $this
100:      */
101:     public function setDefaultLocale($locale)
102:     {
103:         $this->defaultLocale = $locale;
104:         return $this;
105:     }
106: 
107:     /**
108:      * Returns the fallback locale
109:      *
110:      * @return string
111:      */
112:     public function getDefaultLocale()
113:     {
114:         return $this->defaultLocale;
115:     }
116: 
117:     /**
118:      * Loads translator messages from file
119:      *
120:      * @param string $pattern The file path, which can contains %s that would be convert the current locale or fallback locale
121:      * @return $this
122:      * @throws \InvalidArgumentException When file not found or not readable
123:      */
124:     public function loadFromFile($pattern)
125:     {
126:         if (isset($this->files[$pattern])) {
127:             return $this;
128:         }
129: 
130:         $file = sprintf($pattern, $this->locale);
131:         if (!is_file($file)) {
132:             $defaultFile = sprintf($pattern, $this->defaultLocale);
133:             if (!is_file($defaultFile)) {
134:                 throw new \InvalidArgumentException(sprintf('File "%s" and "%s" not found or not readable', $file, $defaultFile));
135:             } else {
136:                 $file = $defaultFile;
137:             }
138:         }
139: 
140:         $this->files[$pattern] = true;
141: 
142:         return $this->loadFromArray(require $file);
143:     }
144: 
145:     /**
146:      * Loads translator messages from array
147:      *
148:      * @param array $messages
149:      * @return $this
150:      */
151:     public function loadFromArray(array $messages)
152:     {
153:         $this->data = $messages + $this->data;
154:         return $this;
155:     }
156: 
157:     /**
158:      * Loads translator messages from closure
159:      *
160:      * @param \Closure $fn
161:      * @return $this
162:      */
163:     public function load(\Closure $fn)
164:     {
165:         return $this->loadFromArray($fn());
166:     }
167: }
168: