#!/usr/bin/env sh
#
# Convenience runner for the Hermes PWA.
#
#   ./run.sh              # dev server  -> http://localhost:5173
#   ./run.sh dev          # same as above
#   ./run.sh build        # production build, deployed into the repo root
#   ./run.sh serve        # build if needed, then host + proxy /api/* (needs HERMES_TARGET)
#   ./run.sh preview      # build, then serve the build with vite preview
#   ./run.sh icons        # regenerate the PWA icon set
#   ./run.sh typecheck    # type-check without emitting
#
# Environment:
#   HERMES_TARGET       Hermes base URL for `serve`, e.g. https://hermes.example.com
#   PORT                Port for `serve` (default 8787)
#   HERMES_DEV_TARGET   Hermes base URL to proxy /api/* during `dev` (avoids CORS)
#
set -eu

cd "$(dirname "$0")/app"

MODE="${1:-dev}"

log() { printf '\033[1;34m>\033[0m %s\n' "$*"; }
die() { printf '\033[1;31mx\033[0m %s\n' "$*" >&2; exit 1; }

command -v node >/dev/null 2>&1 || die "Node.js is required (>=18). Install it and retry."
command -v npm  >/dev/null 2>&1 || die "npm is required. Install it and retry."

ensure_deps() {
  if [ ! -d node_modules ]; then
    log "Installing dependencies..."
    npm install --no-audit --no-fund
  fi
}

ensure_icons() {
  if [ ! -f public/icons/icon-512.png ]; then
    log "Generating PWA icons..."
    npm run icons
  fi
}

case "$MODE" in
  dev)
    ensure_deps
    ensure_icons
    if [ -n "${HERMES_DEV_TARGET:-}" ]; then
      log "Proxying /api/* to $HERMES_DEV_TARGET"
    fi
    log "Starting dev server..."
    exec npm run dev
    ;;
  build)
    ensure_deps
    ensure_icons
    log "Building and deploying to repo root..."
    exec npm run build
    ;;
  serve)
    [ -n "${HERMES_TARGET:-}" ] || die "Set HERMES_TARGET, e.g. HERMES_TARGET=https://hermes.example.com ./run.sh serve"
    ensure_deps
    ensure_icons
    if [ ! -d dist ]; then
      log "No build found - building first..."
      npm run build
    fi
    log "Serving on http://localhost:${PORT:-8787} (proxying /api/* to $HERMES_TARGET)"
    exec npm run serve
    ;;
  preview)
    ensure_deps
    ensure_icons
    npm run build
    exec npm run preview
    ;;
  icons)
    ensure_deps
    exec npm run icons
    ;;
  typecheck)
    ensure_deps
    exec npm run typecheck
    ;;
  *)
    die "Unknown mode '$MODE'. Use: dev | build | serve | preview | icons | typecheck"
    ;;
esac