full working application and initial commit

convex/analytics.ts

@@ -0,0 +1,82 @@
+import { query } from './_generated/server.js';
+import { requireOwner } from './lib.js';
+
+function dayKey(date: Date) {
+	return date.toISOString().slice(0, 10);
+}
+
+function daysAgo(days: number) {
+	const date = new Date();
+	date.setHours(0, 0, 0, 0);
+	date.setDate(date.getDate() - days);
+	return dayKey(date);
+}
+
+export const summary = query({
+	args: {},
+	handler: async (ctx) => {
+		const owner = await requireOwner(ctx);
+		const entries = await ctx.db
+			.query('entries')
+			.withIndex('by_owner_and_entryDate', (q) => q.eq('owner', owner))
+			.order('desc')
+			.take(250);
+		const activeEntries = entries.filter((entry) => !entry.archived);
+		const last30Start = daysAgo(29);
+		const last7Start = daysAgo(6);
+		const last30 = activeEntries.filter((entry) => entry.entryDate >= last30Start);
+		const last7 = activeEntries.filter((entry) => entry.entryDate >= last7Start);
+		const moodCounts: Record<string, number> = {};
+		const dailyCounts = new Map<string, number>();
+		const tagCounts: Record<string, number> = {};
+
+		for (const entry of last30) {
+			moodCounts[entry.mood] = (moodCounts[entry.mood] ?? 0) + 1;
+			dailyCounts.set(entry.entryDate, (dailyCounts.get(entry.entryDate) ?? 0) + 1);
+
+			for (const tagName of entry.tagNames) {
+				tagCounts[tagName] = (tagCounts[tagName] ?? 0) + 1;
+			}
+		}
+
+		let currentStreak = 0;
+		for (let offset = 0; offset < 365; offset += 1) {
+			const key = daysAgo(offset);
+			if (!activeEntries.some((entry) => entry.entryDate === key)) break;
+			currentStreak += 1;
+		}
+
+		const dailySeries = Array.from({ length: 30 }, (_, index) => {
+			const date = daysAgo(29 - index);
+			return { date, count: dailyCounts.get(date) ?? 0 };
+		});
+
+		return {
+			totalEntries: activeEntries.length,
+			entriesThisWeek: last7.length,
+			entriesThisMonth: last30.length,
+			currentStreak,
+			averageWords:
+				activeEntries.length === 0
+					? 0
+					: Math.round(
+							activeEntries.reduce(
+								(sum, entry) => sum + entry.plainText.split(/\s+/).filter(Boolean).length,
+								0
+							) / activeEntries.length
+						),
+			moodCounts,
+			dailySeries,
+			topTags: Object.entries(tagCounts)
+				.sort((a, b) => b[1] - a[1])
+				.slice(0, 8)
+				.map(([name, count]) => ({ name, count })),
+			insight:
+				last7.length >= 5
+					? 'You have a strong writing rhythm this week.'
+					: last7.length >= 2
+						? 'A few reflections this week are already building momentum.'
+						: 'A short entry today is enough to restart the thread.'
+		};
+	}
+});