Remove legacy code

huhu · May 25, 2024 · d787033 · d787033
1 parent 98c6f74
commit d787033
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diff --git a/extension/manage/js/index.js b/extension/manage/js/index.js
@@ -286,8 +286,6 @@ async function renderYearList() {
 }
 
 (async () => {
-    await tryMigrateLegacyStatisticsToTimeline();
-
     const now = moment().valueOf();
     const yearAgo = moment().startOf('day').subtract(1, 'year').valueOf();
     await renderCharts(now, yearAgo);

diff --git a/extension/statistics.js b/extension/statistics.js
@@ -172,83 +172,4 @@ class Statistics {
             return search.replace(/-/gi, "_");
         }
     }
-}
-
-/**
- * Migrate the legacy statistics storage format to timeline format.
- */
-async function tryMigrateLegacyStatisticsToTimeline() {
-    const statistics = await storage.getItem("statistics");
-    if (!statistics) return;
-    // Those calendar, crates, hours, type data are legacy.
-    const { timeline = [], calendarData, cratesData, hoursData, typeData } = statistics;
-    // If no legacy data, we needn't migrate.
-    if (!calendarData) return;
-
-    const migratedData = [];
-
-    // Get the minimum timestamp in the timeline data，default is the timestamp of the current date
-    const minTime = timeline.reduce((pre, [time]) => {
-        return Math.min(pre, time)
-    }, timeline[0] ? timeline[0][0] : moment().valueOf());
-
-    for (let [date, value] of Object.entries(calendarData)) {
-        const time = moment(date).valueOf();
-        if (time < minTime) {
-            for (let i = 1; i <= value; i++) {
-                migratedData.push([time, null, null]);
-            }
-        }
-    }
-
-    /**
-     * Generate an array based on keys of the object and the size of each key's value.
-     * 
-     * For example, unfoldObjectKeysIntoArray({"a": 3, "b": 2}) will get
-     * this: ["a", "a", "a", "b", "b"]
-     */
-    function unfoldObjectKeysIntoArray(obj) {
-        const arr = [];
-        for (let [item, value] of Object.entries(obj)) {
-            if (value) {
-                for (let i = 1; i <= value; i++) {
-                    arr.push(item);
-                }
-            }
-        }
-        return arr;
-    }
-
-    const typeArr = unfoldObjectKeysIntoArray(typeData);
-    const hoursArr = unfoldObjectKeysIntoArray(hoursData);
-    const cratesArr = unfoldObjectKeysIntoArray(cratesData);
-
-    migratedData.forEach((item) => {
-        if (hoursArr.length) {
-            const hourIndex = Math.floor(Math.random() * hoursArr.length)
-            item[0] = moment(item[0]).set('hour', hoursArr[hourIndex]).valueOf();
-            hoursArr.splice(hourIndex, 1);
-        }
-
-        if (typeArr.length) {
-            const typeIndex = Math.floor(Math.random() * typeArr.length);
-            const typeObj = STATS_PATTERNS.find(item => item.name === typeArr[typeIndex]);
-            if (typeObj) {
-                item[1] = typeObj.type
-                typeArr.splice(typeIndex, 1);
-            }
-        }
-
-        if (cratesArr.length) {
-            const cratesIndex = Math.floor(Math.random() * cratesArr.length);
-            item[2] = cratesArr[cratesIndex];
-            cratesArr.splice(cratesIndex, 1);
-        }
-    })
-
-    statistics.timeline = statistics.timeline || [];
-    // Prepend migrated data into timeline.
-    statistics.timeline.unshift(...migratedData);
-
-    await Statistics.prototype.save.apply(statistics)
 }