#!/usr/bin/env bash
# homeai-visual/setup.sh — P7: VTube Studio Expression Bridge
#
# Sets up:
#   - Python venv with websockets
#   - vtube-bridge daemon (HTTP ↔ WebSocket bridge)
#   - vtube-ctl CLI (symlinked to PATH)
#   - launchd service
#
# Prerequisites:
#   - P4 (homeai-agent) — OpenClaw running
#   - P5 (homeai-character) — aria.json with live2d_expressions set
#   - VTube Studio installed (Mac App Store) with WebSocket API enabled

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
REPO_DIR="$(cd "${SCRIPT_DIR}/.." && pwd)"
source "${REPO_DIR}/scripts/common.sh"

VENV_DIR="$HOME/homeai-visual-env"
PLIST_SRC="${SCRIPT_DIR}/launchd/com.homeai.vtube-bridge.plist"
PLIST_DST="$HOME/Library/LaunchAgents/com.homeai.vtube-bridge.plist"
VTUBE_CTL_SRC="$HOME/.openclaw/skills/vtube-studio/scripts/vtube-ctl"

log_section "P7: VTube Studio Expression Bridge"

# ─── Python venv ──────────────────────────────────────────────────────────────

if [[ ! -d "$VENV_DIR" ]]; then
    log_info "Creating Python venv at $VENV_DIR..."
    python3 -m venv "$VENV_DIR"
fi

log_info "Installing dependencies..."
"$VENV_DIR/bin/pip" install --upgrade pip -q
"$VENV_DIR/bin/pip" install websockets -q
log_ok "Python venv ready ($(${VENV_DIR}/bin/python3 --version))"

# ─── vtube-ctl symlink ───────────────────────────────────────────────────────

if [[ -f "$VTUBE_CTL_SRC" ]]; then
    chmod +x "$VTUBE_CTL_SRC"
    ln -sf "$VTUBE_CTL_SRC" /opt/homebrew/bin/vtube-ctl
    log_ok "vtube-ctl symlinked to /opt/homebrew/bin/vtube-ctl"
else
    log_warn "vtube-ctl not found at $VTUBE_CTL_SRC — skipping symlink"
fi

# ─── launchd service ─────────────────────────────────────────────────────────

if [[ -f "$PLIST_SRC" ]]; then
    # Unload if already loaded
    launchctl bootout "gui/$(id -u)/com.homeai.vtube-bridge" 2>/dev/null || true

    cp "$PLIST_SRC" "$PLIST_DST"
    launchctl bootstrap "gui/$(id -u)" "$PLIST_DST"
    log_ok "launchd service loaded: com.homeai.vtube-bridge"
else
    log_warn "Plist not found at $PLIST_SRC — skipping launchd setup"
fi

# ─── Status ──────────────────────────────────────────────────────────────────

echo ""
log_info "VTube Bridge setup complete."
log_info ""
log_info "Next steps:"
log_info "  1. Install VTube Studio from Mac App Store"
log_info "  2. Enable WebSocket API: Settings > WebSocket API > port 8001"
log_info "  3. Load a Live2D model"
log_info "  4. Create expression hotkeys (idle, listening, thinking, speaking, happy, sad, surprised, error)"
log_info "  5. Run: vtube-ctl auth  (click Allow in VTube Studio)"
log_info "  6. Run: python3 ${SCRIPT_DIR}/scripts/test-expressions.py --all"
log_info "  7. Update aria.json with real hotkey UUIDs"
log_info ""
log_info "Logs: /tmp/homeai-vtube-bridge.log"
log_info "Bridge: http://localhost:8002/status"