1. Store expiration timestamp of access token.

2. Implement basic command line handling mechinism.

src/config.js

@@ -19,7 +19,18 @@ var app_cfg = {
   'fb_auth_scope' : '',
 
   // Default configure file name
-  'default_config_file' : HOME() + '/.0xfb' 
+  'default_config_file' : HOME() + '/.0xfb',
+
+  // Available program options
+  // 'option name' : (true if it has a value)
+  // Ex: 
+  // If you expect user to type "-p 60"
+  // you should set 
+  //   '-p' : true
+  'program_options' : {
+    '--website' : true,  // Example
+    '--silence' : false
+  }
 
 };
 

src/fb_oauth_client.js

@@ -59,14 +59,25 @@ var getTokenWithUsersHelp = function(success_callback,
 exports.getAuthToken = function(success_callback,
                                 failure_callback) {
   var USER_CONFIG = require('./config.js').user_config();
-  if (USER_CONFIG.hasOwnProperty('fb_auth_token')) {
-    success_callback(USER_CONFIG['fb_auth_token'], 0);
+
+  if (USER_CONFIG.hasOwnProperty('fb_auth_token')
+      && USER_CONFIG['fb_auth_token_expire'] > Date.now()/1000) {
+    // Success callback
+    success_callback(USER_CONFIG['fb_auth_token'],
+                     USER_CONFIG['fb_auth_token_expire']);
   } else {
-    getTokenWithUsersHelp(function(access_token, expires_in) { // When success.
-      USER_CONFIG['fb_auth_token'] = access_token;
-      USER_CONFIG['fb_auth_token_expire'] = 
-        Date.now() / 1000 + expires_in;
-      success_callback(access_token, expires_in); // To caller's callback
-    }, failure_callback);
+    getTokenWithUsersHelp(
+      function(access_token, expires_in) { // When success.
+
+        // Record to user config.
+        USER_CONFIG['fb_auth_token'] = access_token;
+        USER_CONFIG['fb_auth_token_expire'] = 
+          parseInt(Date.now()/1000) + parseInt(expires_in);
+
+        // Success callback
+        success_callback(USER_CONFIG['fb_auth_token'],
+                         USER_CONFIG['fb_auth_token_expire']);
+      },
+      failure_callback);
   }
 };

src/index.js

@@ -1,8 +1,55 @@
+// Command format:
+// ./0xfb [Program option] <Command> [Command argument]
+
+
+var CONFIG = require('./config.js').app_config();
+
+// prog_command:
+// Map command to module that run the command.
+// Each module must has run() function. And the first argument of this
+// function would be program option, while the second one would be
+// command argument. Move to ./config.js ?
+var progCommand = {
+  // Update photo
+  'uploadphoto' : './upload_photo.js'
+};
+
+// It is a chance for program to make global setting before and command
+// is issued. Command will be executed right after this step.
+var handleSetting = function(progOpt, command, cmdArg) {
+  // So far it's empty XD.
+}
+
+// Parse command line, collect program option, command, command argrment.
+var initRun = function() {
+
+  var program_option = [];
+  var command = '';
+  var command_argument = [];
+
+  // [TODO Patrick] Here I assume there is no program options, so we just
+  // use that first argument as command
+
+  command = process.argv[2];
+  command_argument = process.argv.slice(3);
+
+  if (!progCommand.hasOwnProperty(command)) {
+    // Invalid command.
+    process.exit(1);
+  }
+
+  handleSetting(program_option, command, command_argument);
+
+  // Go
+  require(progCommand[command]).run(program_option, command_argument);
+}
+
+// *** Start with fetching access token ***
 var fbOauthClient = require('./fb_oauth_client.js');
+fbOauthClient.getAuthToken(function(access_token, expires) {
+  // Debug !!
+  console.log(" Access token: %s", access_token);
+  console.log(" Expire Time: %d, now: %d", expires, parseInt(Date.now()/1000));
 
-fbOauthClient.getAuthToken(function(access_token, expires_in) {
-  console.log("We got token:");
-  console.log("  access_token: %s", access_token);
-  console.log("  expires_in: %s", expires_in);
-  process.exit(0);
+  initRun();
 });

src/upload_photo.js

@@ -0,0 +1,5 @@
+exports.run = function(progOpt, cmdArgs) {
+  console.log(progOpt);
+  console.log(cmdArgs);
+  process.exit(0);
+}