#!/bin/bash
# --- Local development (macOS) ---
#
# Builds the UI bundle and static-serves it on http://localhost:8770/.
# Runs in a named tmux session so we can iterate (re-running this script
# rebuilds and restarts the server in-place, you keep your browser tab).
#
# What you'll see:
#   * The full V09 chrome (header tabs, settings rail, jog grid, DRO
#     skeleton, status strip).
#   * A "DISCONNECTED" overlay because there's no controller backend.
#   * The W axis row in jog/DRO is hidden (correct: it appears only when
#     the controller reports `aux_enabled = true`). To exercise the W
#     axis end-to-end, deploy to the Pi (`./deploy.sh hardware`).

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
cd "$SCRIPT_DIR"

echo "🛠  Building UI bundle..."
make build/http/index.html >/dev/null

PORT="${PORT:-8770}"
SESSION="onefin-local"

ensure_tmux_window() {
    local session="$1"
    local window="${2:-}"
    local target="${session}${window:+:$window}"
    if tmux has-session -t "$session" 2>/dev/null; then
        if tmux send-keys -t "$target" "" 2>/dev/null; then
            echo "🔁 Reusing tmux session '$session'..."
            tmux send-keys -t "$target" C-c
            sleep 1
            return
        fi
        echo "⚠️  Dead pane in '$session', recreating..."
        tmux kill-session -t "$session" 2>/dev/null
    fi
    echo "🆕 Creating tmux session '$session'..."
    tmux new-session -d -s "$session"
}

ensure_tmux_window "$SESSION"

# Free the port if a previous run is still listening.
if lsof -iTCP:"$PORT" -sTCP:LISTEN >/dev/null 2>&1; then
    echo "⚠️  Port $PORT is busy; killing previous server..."
    lsof -tiTCP:"$PORT" -sTCP:LISTEN | xargs -r kill 2>/dev/null || true
    sleep 1
fi

tmux send-keys -t "$SESSION" \
  "cd '$SCRIPT_DIR' && python3 -m http.server --directory build/http $PORT" \
  C-m

echo ""
echo "✅ Static UI server started on http://localhost:$PORT/"
echo ""
echo "   Routes to try:"
echo "     http://localhost:$PORT/#control"
echo "     http://localhost:$PORT/#program"
echo "     http://localhost:$PORT/#console"
echo "     http://localhost:$PORT/#settings        (Display & Units)"
echo "     http://localhost:$PORT/#admin-network   (WiFi / IP)"
echo "     http://localhost:$PORT/#motor:0         (Motor 0 settings)"
echo ""
echo "   tmux:        tmux attach -t $SESSION"
echo "   stop:        tmux kill-session -t $SESSION"
echo ""
echo "ℹ️  No controller is running, so the page shows DISCONNECTED and"
echo "   axis values stay empty. For live data + W axis, run:"
echo "     ./deploy.sh hardware     (fast: rsync build/http -> Pi)"
echo "     ./deploy.sh prod         (full firmware update)"