From 4b0ca55eb79e963523eb6c8197825e9e8ae904e2 Mon Sep 17 00:00:00 2001
From: Wu Cheng-Han
Date: Mon, 4 May 2015 15:53:29 +0800
Subject: First commit, version 0.2.7

---
 public/js/history.js | 256 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 256 insertions(+)
 create mode 100644 public/js/history.js

(limited to 'public/js/history.js')

diff --git a/public/js/history.js b/public/js/history.js
new file mode 100644
index 00000000..c6deaa53
--- /dev/null
+++ b/public/js/history.js
@@ -0,0 +1,256 @@
+//common
+function checkIfAuth(yesCallback, noCallback) {
+    $.get('/me')
+        .done(function (data) {
+            if (data && data.status == 'ok') {
+                yesCallback(data);
+            } else {
+                noCallback();
+            }
+        })
+        .fail(function () {
+            noCallback();
+        });
+}
+
+function saveHistory(notehistory) {
+    checkIfAuth(
+        function () {
+            saveHistoryToServer(notehistory);
+        },
+        function () {
+            saveHistoryToCookie(notehistory);
+        }
+    );
+}
+
+function saveHistoryToCookie(notehistory) {
+    $.cookie('notehistory', JSON.stringify(notehistory), {
+        expires: 365
+    });
+}
+
+function saveHistoryToServer(notehistory) {
+    $.post('/history', {
+        history: JSON.stringify(notehistory)
+    });
+}
+
+function saveCookieHistoryToServer(callback) {
+    $.post('/history', {
+            history: $.cookie('notehistory')
+        })
+        .done(function (data) {
+            callback();
+        });
+}
+
+function clearDuplicatedHistory(notehistory) {
+    var newnotehistory = [];
+    for (var i = 0; i < notehistory.length; i++) {
+        var found = false;
+        for (var j = 0; j < newnotehistory.length; j++) {
+            if (notehistory[i].id == newnotehistory[j].id) {
+                found = true;
+                break;
+            }
+        }
+        if (!found)
+            newnotehistory.push(notehistory[i]);
+    }
+    return notehistory;
+}
+
+function addHistory(id, text, time, tags, notehistory) {
+    notehistory.push({
+        id: id,
+        text: text,
+        time: time,
+        tags: tags
+    });
+    return notehistory;
+}
+
+function removeHistory(id, notehistory) {
+    for (var i = 0; i < notehistory.length; i++) {
+        if (notehistory[i].id == id)
+            notehistory.splice(i, 1);
+    }
+    return notehistory;
+}
+
+//used for inner
+function writeHistory(view) {
+    checkIfAuth(
+        function () {
+            writeHistoryToServer(view);
+        },
+        function () {
+            writeHistoryToCookie(view);
+        }
+    );
+}
+
+function writeHistoryToServer(view) {
+    $.get('/history')
+        .done(function (data) {
+            try {
+                if (data.history) {
+                    var notehistory = data.history;
+                } else {
+                    var notehistory = [];
+                }
+            } catch (err) {
+                var notehistory = [];
+            }
+            var newnotehistory = generateHistory(view, notehistory);
+            saveHistoryToServer(newnotehistory);
+        })
+        .fail(function () {
+            writeHistoryToCookie(view);
+        });
+}
+
+function writeHistoryToCookie(view) {
+    try {
+        var notehistory = JSON.parse($.cookie('notehistory'));
+    } catch (err) {
+        var notehistory = [];
+    }
+
+    var newnotehistory = generateHistory(view, notehistory);
+    saveHistoryToCookie(newnotehistory);
+}
+
+function renderHistory(view) {
+    var title = renderFilename(view);
+
+    var tags = [];
+    var rawtags = [];
+    view.find('h6').each(function (key, value) {
+        if (/^tags/gmi.test($(value).text())) {
+            var codes = $(value).find("code");
+            for (var i = 0; i < codes.length; i++)
+                rawtags.push(codes[i]);
+        }
+    });
+    for (var i = 0; i < rawtags.length; i++) {
+        var found = false;
+        for (var j = 0; j < tags.length; j++) {
+            if (tags[j] == rawtags[i].innerHTML) {
+                found = true;
+                break;
+            }
+        }
+        if (!found)
+            tags.push(rawtags[i].innerHTML);
+    }
+    //console.debug(tags);
+    return {
+        id: location.pathname.split('/')[1],
+        text: title,
+        time: moment().format('MMMM Do YYYY, h:mm:ss a'),
+        tags: tags
+    };
+}
+
+function generateHistory(view, notehistory) {
+    var info = renderHistory(view);
+    notehistory = clearDuplicatedHistory(notehistory);
+    notehistory = removeHistory(info.id, notehistory);
+    notehistory = addHistory(info.id, info.text, info.time, info.tags, notehistory);
+    return notehistory;
+}
+
+//used for outer
+function getHistory(callback) {
+    checkIfAuth(
+        function () {
+            getServerHistory(callback);
+        },
+        function () {
+            getCookieHistory(callback);
+        }
+    );
+}
+
+function getServerHistory(callback) {
+    $.get('/history')
+        .done(function (data) {
+            if (data.history) {
+                callback(data.history);
+            }
+        })
+        .fail(function () {
+            getCookieHistory(callback);
+        });
+}
+
+function getCookieHistory(callback) {
+    callback(JSON.parse($.cookie('notehistory')));
+}
+
+function parseHistory(callback) {
+    checkIfAuth(
+        function () {
+            parseServerToHistory(callback);
+        },
+        function () {
+            parseCookieToHistory(callback);
+        }
+    );
+}
+
+function parseServerToHistory(callback) {
+    $.get('/history')
+        .done(function (data) {
+            if (data.history) {
+                //console.log(data.history);
+                parseToHistory(data.history, callback);
+            }
+        })
+        .fail(function () {
+            parseCookieToHistory(callback);
+        });
+}
+
+function parseCookieToHistory(callback) {
+    var notehistory = JSON.parse($.cookie('notehistory'));
+    parseToHistory(notehistory, callback);
+}
+
+function parseToHistory(notehistory, callback) {
+    if (notehistory && notehistory.length > 0) {
+        //console.log(notehistory);
+        for (var i = 0; i < notehistory.length; i++) {
+            notehistory[i].timestamp = moment(notehistory[i].time, 'MMMM Do YYYY, h:mm:ss a').unix();
+            notehistory[i].fromNow = moment(notehistory[i].time, 'MMMM Do YYYY, h:mm:ss a').fromNow();
+        }
+        $(notehistory).each(function (key, value) {
+            var close = "<div class='ui-history-close fa fa-close fa-fw'></div>";
+            var text = "<h4 class='text'>" + value.text + "</h2>";
+            var timestamp = "<i class='timestamp' style='display:none;'>" + value.timestamp + "</i>";
+            var fromNow = "<i class='fromNow'><i class='fa fa-clock-o'></i> " + value.fromNow + "</i>";
+            var time = "<i class='time'>" + value.time + "</i>";
+            var tags = "";
+            if (value.tags) {
+                var labels = [];
+                for (var j = 0; j < value.tags.length; j++)
+                    labels.push("<span class='label label-default'>" + value.tags[j] + "</span>");
+                tags = "<p class='tags'>" + labels.join(" ") + "</p>";
+            }
+            var li = "<li class='col-xs-12 col-sm-6 col-md-6 col-lg-6'><a href='" + "./" + value.id + "'><div class='item'>" + close + text + '<p>' + fromNow + '<br>' + timestamp + time + '</p>' + tags + "</div></a></li>"
+                //console.debug(li);
+            $("#history-list").append(li);
+        });
+    }
+
+    var options = {
+        valueNames: ['text', 'timestamp', 'fromNow', 'time', 'tags']
+    };
+    var historyList = new List('history', options);
+    historyList.sort('timestamp', {
+        order: "desc"
+    });
+    callback();
+}
\ No newline at end of file
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