#!/bin/bash
set -e

# CONTRACT: docs/BUDGETS.md
# DO NOT CHANGE THESE VALUES WITHOUT UPDATING THE CONTRACT FIRST.
MAX_BUILD_SECONDS=120

REPO_ROOT=$(git rev-parse --show-toplevel)
WEB_DIR="$REPO_ROOT/apps/web"

echo "📍 Frontend Build Performance Check"
echo "📜 Contract: docs/BUDGETS.md"
echo "⏱️  Budget: ${MAX_BUILD_SECONDS}s"

cd "$WEB_DIR"

START_TIME=$(date +%s)

# Run build independently of the other build test to measure PURE time
# In a real CI, we might skip if artifact exists, but here we enforce speed of build
npm run build > /dev/null 2>&1

END_TIME=$(date +%s)
DURATION=$((END_TIME - START_TIME))

echo "📊 Build took: ${DURATION}s"

if [ "$DURATION" -gt "$MAX_BUILD_SECONDS" ]; then
    echo "❌ FATAL: Build deemed TOO SLOW for a vital component."
    echo "   Limit: ${MAX_BUILD_SECONDS}s"
    echo "   Actual: ${DURATION}s"
    echo "   See docs/FRUGALITY.md for policy."
    exit 1
fi

echo "✅ Build speed within limits."