Save each new file in history.json

lib/logWriter.js

@@ -8,57 +8,6 @@
         mkdirp = require('mkdirp'),
         path   = require('path');
 
-    /**
-     * createDir
-     *
-     * Create a dir if it doesn't exist yet
-     *
-     * @param {String}   path     The dir
-     * @param {Function} callback
-     */
-    var createDir = function (path, callback) {
-        mkdirp(path, function (err) {
-            callback(err);
-        });
-    };
-
-    /**
-     * appendFile
-     *
-     * Append content to a file
-     *
-     * @param {String}   pathToFile  The file
-     * @param {String}   content
-     * @param {Function} callback
-     */
-    var appendFile = function (pathToFile, content, callback) {
-        createDir(path.dirname(pathToFile), function (err) {
-            if (err) {
-                callback(err);
-            } else {
-                fs.appendFile(pathToFile, content, callback);
-            }
-        });
-    };
-
-    /**
-     * writeFile
-     *
-     * Write content into a file (erase old one)
-     *
-     * @param {String}   pathToFile  The file
-     * @param {String}   content
-     * @param {Function} callback
-     */
-    var writeFile = function (pathToFile, content, callback) {
-        createDir(path.dirname(pathToFile), function (err) {
-            if (err) {
-                callback(err);
-            } else {
-                fs.writeFile(pathToFile, content, callback);
-            }
-        });
-    };
 
     /**
      * rootPaths
@@ -88,6 +37,141 @@
         } else {
             rootPaths.push(this.rootPath);
         }
+
+        //Init history
+
+        this.history = {
+            dates : {}
+        };
+
+        this.writeFile(
+            path.join(this.rootPath, 'history.json'),
+            this.history,
+            function (err) {
+                if (err) {
+                    throw err;
+                }
+            }
+        );
+    };
+
+    /**
+     * LogWriter.prototype.createDir
+     *
+     * Create a dir if it doesn't exist yet
+     *
+     * @param {String}   path     The dir
+     * @param {Function} callback
+     */
+    LogWriter.prototype.createDir = function (path, callback) {
+        mkdirp(path, function (err) {
+            callback(err);
+        });
+    };
+
+    /**
+     * LogWriter.prototype.appendFile
+     *
+     * Append content to a file
+     *
+     * @param {String}   pathToFile  The file
+     * @param {String}   content
+     * @param {Function} callback
+     */
+    LogWriter.prototype.appendFile = function (pathToFile, content, callback) {
+        
+        var self = this;
+        
+        self.createDir(path.dirname(pathToFile), function (err) {
+
+            if (err) {
+                callback(err);
+            } else {
+                
+                var newFile = fs.existsSync(pathToFile);
+
+                fs.appendFile(pathToFile, content, function (err) {
+                    
+                    if (err) {
+                        throw err;
+                    } else if (newFile) {
+                        self.newFileHistory(pathToFile);
+                        callback();
+                    }
+                
+                });
+            }
+        });
+    };
+
+    /**
+     * LogWriter.prototype.writeFile
+     *
+     * Write content into a file (erase old one)
+     *
+     * @param {String}   pathToFile  The file
+     * @param {String}   content
+     * @param {Function} callback
+     */
+    LogWriter.prototype.writeFile = function (pathToFile, content, callback) {
+
+        if (typeof content !== 'string') {
+            content = JSON.stringify(content);
+        }
+
+        this.createDir(path.dirname(pathToFile), function (err) {
+            if (err) {
+                callback(err);
+            } else {
+                fs.writeFile(pathToFile, content, callback);
+            }
+        });
+    };
+
+    /**
+     * LogWriter.prototype.newFileHistory
+     *
+     * Save the new file path in history according to the date
+     *
+     * @param {String}  pathToFile  
+     */
+    LogWriter.prototype.newFileHistory = function (pathToFile) {
+
+        var historyPath = path.join(this.rootPath, 'history.json'),
+            self        = this;
+
+        fs.readFile(
+            historyPath, 
+            function (err, data) {
+                if (err) {
+                    throw err;
+                } else {
+
+                    try {
+                        var today   = moment().startOf('day').valueOf().toString();
+
+                        //Save the path under today key
+                        
+                        if (!self.history.dates[today]) {
+                            self.history.dates[today] = [];
+                        }
+                        
+                        self.history.dates[today].push(pathToFile);
+
+                        self.writeFile(historyPath, self.history, function (err) {
+                            if (err) {
+                                throw err;
+                            }
+                        });
+
+                    } catch (e) {
+                        throw e;
+                    } 
+
+                }
+            }
+        );
+
     };
 
     /**
@@ -189,7 +273,7 @@
 
         var json = JSON.stringify(log);
 
-        appendFile(this.path(opt), json + '\n', function (err) {
+        this.appendFile(this.path(opt), json + '\n', function (err) {
             if (err) {
                 throw err;
             }
@@ -207,7 +291,7 @@
 
         var filePath = path.join(this.rootPath, logger.name + '.json');
 
-        writeFile(filePath, JSON.stringify(logger), function (err) {
+        this.writeFile(filePath, JSON.stringify(logger), function (err) {
             if (err) {
                 throw err;
             }