#!/usr/bin/env bash
# Triggered by the Payload afterChange webhook.
# Pulls the latest source and rebuilds the static site.

set -euo pipefail

REPO_DIR="${REPO_DIR:-/opt/softvowels}"
BRANCH="${BRANCH:-main}"
LOG_FILE="${LOG_FILE:-/var/log/softvowels-rebuild.log}"

cd "$REPO_DIR"

echo "[$(date -Is)] Rebuild start" >> "$LOG_FILE"

if ! git fetch --depth 1 origin "$BRANCH" >> "$LOG_FILE" 2>&1; then
  echo "[$(date -Is)] git fetch failed" >> "$LOG_FILE"
  exit 1
fi

LOCAL=$(git rev-parse HEAD)
REMOTE=$(git rev-parse "origin/$BRANCH")

if [ "$LOCAL" = "$REMOTE" ]; then
  echo "[$(date -Is)] No changes (HEAD=$LOCAL). Skip." >> "$LOG_FILE"
  exit 0
fi

git reset --hard "origin/$BRANCH" >> "$LOG_FILE" 2>&1
echo "[$(date -Is)] Updated to $REMOTE" >> "$LOG_FILE"

if command -v pnpm >/dev/null 2>&1; then
  PKG=pnpm
elif command -v npm >/dev/null 2>&1; then
  PKG="npm run --workspace=web"
else
  echo "[$(date -Is)] No package manager found" >> "$LOG_FILE"
  exit 2
fi

case "$PKG" in
  pnpm)
    pnpm install --frozen-lockfile >> "$LOG_FILE" 2>&1
    pnpm --filter web build >> "$LOG_FILE" 2>&1
    ;;
  *)
    (cd apps/web && npm ci --no-audit --no-fund >> "$LOG_FILE" 2>&1)
    (cd apps/web && npm run build >> "$LOG_FILE" 2>&1)
    ;;
esac

echo "[$(date -Is)] Rebuild done" >> "$LOG_FILE"