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@@ -0,0 +1,295 @@
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import { NextRequest, NextResponse } from "next/server";
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import { auth } from "@clerk/nextjs/server";
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import Database from "better-sqlite3";
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import log from "@/lib/logger";
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const db = new Database("./data/fitai.db");
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interface WeeklyStats {
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week: string; // ISO week start date
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checkIns: number;
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goalsCompleted: number;
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avgProgress: number;
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}
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interface GoalStats {
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total: number;
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active: number;
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completed: number;
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avgProgress: number;
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byType: Record<string, number>;
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}
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interface AttendanceStats {
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totalCheckIns: number;
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currentStreak: number;
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longestStreak: number;
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thisWeek: number;
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thisMonth: number;
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recentCheckIns: Array<{
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id: string;
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checkInTime: string;
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checkOutTime: string | null;
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type: string;
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duration?: number; // in minutes
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}>;
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}
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interface DashboardStatistics {
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goals: GoalStats;
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attendance: AttendanceStats;
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weeklyTrend: WeeklyStats[];
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}
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// GET - Fetch dashboard statistics for authenticated user
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export async function GET(request: NextRequest) {
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try {
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const { userId } = await auth();
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if (!userId) {
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return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
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}
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log.debug("Fetching statistics for user", { userId });
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// Get goal statistics
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const goals = db
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.prepare(
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`SELECT
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goal_type as goalType,
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status,
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progress,
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target_value as targetValue,
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current_value as currentValue
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FROM fitness_goals
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WHERE user_id = ?`,
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)
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.all(userId) as Array<{
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goalType: string;
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status: string;
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progress: number;
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targetValue: number | null;
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currentValue: number | null;
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}>;
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const activeGoals = goals.filter((g) => g.status === "active");
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const completedGoals = goals.filter((g) => g.status === "completed");
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const goalsByType: Record<string, number> = {};
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goals.forEach((goal) => {
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goalsByType[goal.goalType] = (goalsByType[goal.goalType] || 0) + 1;
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});
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const avgProgress =
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activeGoals.length > 0
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? activeGoals.reduce((sum, g) => sum + (g.progress || 0), 0) /
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activeGoals.length
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: 0;
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const goalStats: GoalStats = {
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total: goals.length,
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active: activeGoals.length,
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completed: completedGoals.length,
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avgProgress: Math.round(avgProgress),
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byType: goalsByType,
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};
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// Get attendance statistics
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const attendanceRecords = db
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.prepare(
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`SELECT
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id,
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check_in_time as checkInTime,
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check_out_time as checkOutTime,
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type
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FROM attendance
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WHERE user_id = ?
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ORDER BY check_in_time DESC`,
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)
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.all(userId) as Array<{
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id: string;
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checkInTime: string;
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checkOutTime: string | null;
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type: string;
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}>;
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const totalCheckIns = attendanceRecords.length;
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// Get recent check-ins (last 10)
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const recentCheckIns = attendanceRecords.slice(0, 10).map((record) => {
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let duration: number | undefined;
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if (record.checkOutTime) {
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const checkIn = new Date(record.checkInTime).getTime();
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const checkOut = new Date(record.checkOutTime).getTime();
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duration = Math.round((checkOut - checkIn) / (1000 * 60)); // minutes
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}
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return {
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...record,
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duration,
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};
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});
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// Calculate this week's check-ins
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const now = new Date();
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const startOfWeek = new Date(now);
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startOfWeek.setDate(now.getDate() - now.getDay()); // Sunday
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startOfWeek.setHours(0, 0, 0, 0);
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const thisWeekCheckIns = attendanceRecords.filter(
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(r) => new Date(r.checkInTime) >= startOfWeek,
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).length;
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// Calculate this month's check-ins
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const startOfMonth = new Date(now.getFullYear(), now.getMonth(), 1);
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const thisMonthCheckIns = attendanceRecords.filter(
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(r) => new Date(r.checkInTime) >= startOfMonth,
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).length;
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// Calculate current streak (consecutive days with check-ins)
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let currentStreak = 0;
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let longestStreak = 0;
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let tempStreak = 0;
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let lastDate: Date | null = null;
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const sortedRecords = [...attendanceRecords].sort(
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(a, b) =>
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new Date(b.checkInTime).getTime() - new Date(a.checkInTime).getTime(),
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);
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const uniqueDays = new Set<string>();
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sortedRecords.forEach((record) => {
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const date = new Date(record.checkInTime);
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const dateStr = date.toISOString().split("T")[0];
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uniqueDays.add(dateStr);
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});
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const sortedDays = Array.from(uniqueDays).sort().reverse();
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for (let i = 0; i < sortedDays.length; i++) {
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const currentDate = new Date(sortedDays[i]);
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if (lastDate === null) {
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tempStreak = 1;
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currentStreak = 1;
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} else {
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const dayDiff = Math.floor(
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(lastDate.getTime() - currentDate.getTime()) / (1000 * 60 * 60 * 24),
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);
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if (dayDiff === 1) {
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tempStreak++;
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if (i === 0 || currentStreak > 0) {
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currentStreak = tempStreak;
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}
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} else {
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if (currentStreak === 0) {
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currentStreak = 0;
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}
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tempStreak = 1;
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}
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}
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longestStreak = Math.max(longestStreak, tempStreak);
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lastDate = currentDate;
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}
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// Check if streak is still active (last check-in was today or yesterday)
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if (sortedDays.length > 0) {
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const lastCheckIn = new Date(sortedDays[0]);
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const today = new Date();
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today.setHours(0, 0, 0, 0);
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const yesterday = new Date(today);
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yesterday.setDate(yesterday.getDate() - 1);
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lastCheckIn.setHours(0, 0, 0, 0);
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if (
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lastCheckIn.getTime() !== today.getTime() &&
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lastCheckIn.getTime() !== yesterday.getTime()
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) {
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currentStreak = 0;
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}
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}
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const attendanceStats: AttendanceStats = {
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totalCheckIns,
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currentStreak,
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longestStreak,
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thisWeek: thisWeekCheckIns,
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thisMonth: thisMonthCheckIns,
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recentCheckIns,
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};
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// Calculate weekly trend (last 8 weeks)
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const weeklyTrend: WeeklyStats[] = [];
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for (let i = 7; i >= 0; i--) {
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const weekStart = new Date(now);
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weekStart.setDate(now.getDate() - now.getDay() - i * 7);
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weekStart.setHours(0, 0, 0, 0);
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const weekEnd = new Date(weekStart);
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weekEnd.setDate(weekStart.getDate() + 7);
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const weekCheckIns = attendanceRecords.filter((r) => {
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const checkInDate = new Date(r.checkInTime);
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return checkInDate >= weekStart && checkInDate < weekEnd;
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}).length;
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const weekGoalsCompleted = db
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.prepare(
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`SELECT COUNT(*) as count
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FROM fitness_goals
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WHERE user_id = ?
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AND status = 'completed'
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AND completed_date >= ?
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AND completed_date < ?`,
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)
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.get(userId, weekStart.toISOString(), weekEnd.toISOString()) as {
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count: number;
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};
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const weekActiveGoals = db
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.prepare(
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`SELECT progress
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FROM fitness_goals
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WHERE user_id = ?
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AND status = 'active'
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AND created_at < ?`,
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)
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.all(userId, weekEnd.toISOString()) as Array<{ progress: number }>;
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const weekAvgProgress =
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weekActiveGoals.length > 0
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? weekActiveGoals.reduce((sum, g) => sum + (g.progress || 0), 0) /
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weekActiveGoals.length
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: 0;
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weeklyTrend.push({
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week: weekStart.toISOString().split("T")[0],
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checkIns: weekCheckIns,
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goalsCompleted: weekGoalsCompleted.count,
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avgProgress: Math.round(weekAvgProgress),
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});
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}
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const statistics: DashboardStatistics = {
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goals: goalStats,
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attendance: attendanceStats,
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weeklyTrend,
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};
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log.debug("Statistics calculated successfully", {
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userId,
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totalGoals: goalStats.total,
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totalCheckIns,
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});
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return NextResponse.json({ statistics });
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} catch (error) {
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log.error("Failed to fetch statistics", error);
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return NextResponse.json(
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{ error: "Failed to fetch statistics" },
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{ status: 500 },
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);
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}
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}
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