setup

#!/usr/bin/env bash
# heygen-skills setup — first-time installation for Claude Code and OpenClaw users.
# Idempotent: safe to run multiple times.
set -euo pipefail

# ─── Colors (degrade gracefully) ─────────────────────────────
if [ -t 1 ] && command -v tput &>/dev/null && [ "$(tput colors 2>/dev/null || echo 0)" -ge 8 ]; then
  GREEN=$(tput setaf 2) YELLOW=$(tput setaf 3) RED=$(tput setaf 1) BOLD=$(tput bold) RESET=$(tput sgr0)
else
  GREEN="" YELLOW="" RED="" BOLD="" RESET=""
fi

ok()   { echo "${GREEN}✓${RESET} $1"; }
warn() { echo "${YELLOW}!${RESET} $1"; }
err()  { echo "${RED}✗${RESET} $1"; }

# ─── Locate repo root ────────────────────────────────────────
SKILL_DIR="$(cd "$(dirname "$0")" && pwd)"
if [ ! -f "$SKILL_DIR/SKILL.md" ]; then
  err "Cannot find SKILL.md — run this script from the heygen-skills repo root."
  exit 1
fi

# ─── Parse flags ────────────────────────────────────────────
HOST_OVERRIDE=""
while [ $# -gt 0 ]; do
  case "$1" in
    --host)
      shift
      if [ $# -eq 0 ]; then
        err "--host requires a value: claude or openclaw"
        exit 1
      fi
      case "$1" in
        claude|claude-code) HOST_OVERRIDE="claude-code" ;;
        openclaw)           HOST_OVERRIDE="openclaw" ;;
        *)
          err "Unknown host agent: $1 (expected: claude or openclaw)"
          exit 1
          ;;
      esac
      shift
      ;;
    --host=*)
      val="${1#--host=}"
      case "$val" in
        claude|claude-code) HOST_OVERRIDE="claude-code" ;;
        openclaw)           HOST_OVERRIDE="openclaw" ;;
        *)
          err "Unknown host agent: $val (expected: claude or openclaw)"
          exit 1
          ;;
      esac
      shift
      ;;
    *)
      warn "Unknown flag: $1"
      shift
      ;;
  esac
done

# ─── Detect host agent ───────────────────────────────────────
# Priority: 1) --host flag, 2) script path, 3) directory existence fallback
AGENT="unknown"
SKILLS_DIR=""

if [ -n "$HOST_OVERRIDE" ]; then
  # Explicit --host flag takes highest priority
  AGENT="$HOST_OVERRIDE"
elif [[ "$SKILL_DIR" == *"/.openclaw/workspace/skills/"* ]]; then
  AGENT="openclaw"
elif [[ "$SKILL_DIR" == *"/.claude/skills/"* ]]; then
  AGENT="claude-code"
elif [ -d "$HOME/.openclaw" ] && [ -d "$HOME/.claude" ]; then
  # Both installed — path was ambiguous, warn and ask for --host
  warn "Both Claude Code and OpenClaw detected. Cannot auto-detect host agent."
  warn "Re-run with: ./setup --host claude  OR  ./setup --host openclaw"
elif [ -d "$HOME/.claude" ]; then
  AGENT="claude-code"
elif [ -d "$HOME/.openclaw" ]; then
  AGENT="openclaw"
fi

# Set skills directory based on detected agent
case "$AGENT" in
  claude-code) SKILLS_DIR="$HOME/.claude/skills" ;;
  openclaw)    SKILLS_DIR="$HOME/.openclaw/workspace/skills" ;;
esac

echo ""
echo "${BOLD}HeyGen Skills Setup${RESET}"
echo "─────────────────────────────"
if [ "$AGENT" = "unknown" ]; then
  warn "Could not detect Claude Code or OpenClaw. See INSTALL.md for manual setup."
else
  ok "Detected host agent: ${BOLD}${AGENT}${RESET}"
fi

# ─── Create skill symlinks ───────────────────────────────────
SKILLS=(heygen-avatar heygen-video)

if [ -n "$SKILLS_DIR" ]; then
  INSTALL_DIR="$SKILLS_DIR/heygen-skills"
  mkdir -p "$INSTALL_DIR"
  for skill in "${SKILLS[@]}"; do
    src="$SKILL_DIR/$skill/SKILL.md"
    [ ! -f "$src" ] && { warn "Skipping $skill — SKILL.md not found"; continue; }
    mkdir -p "$INSTALL_DIR/$skill" "$SKILLS_DIR/$skill"
    ln -sf "$src" "$INSTALL_DIR/$skill/SKILL.md"
    ln -sf "$src" "$SKILLS_DIR/$skill/SKILL.md"
  done
  ln -sf "$SKILL_DIR/SKILL.md" "$INSTALL_DIR/SKILL.md"
  [ -d "$SKILL_DIR/references" ] && ln -sfn "$SKILL_DIR/references" "$INSTALL_DIR/references"
  ok "Skill symlinks created in ${SKILLS_DIR}"
  for skill in "${SKILLS[@]}"; do echo "    ${skill}/SKILL.md"; done
fi

# ─── Auth guidance ───────────────────────────────────────────
echo ""
echo "${BOLD}Auth:${RESET}"
echo "  The skills prefer HeyGen Remote MCP (OAuth, no API key needed)."
echo "  If MCP isn't connected, install and use the HeyGen CLI:"
echo "    ${BOLD}curl -fsSL https://static.heygen.ai/cli/install.sh | bash${RESET}"
echo "    ${BOLD}heygen auth login${RESET}    # or: export HEYGEN_API_KEY=<your-key>"
echo "    ${BOLD}heygen auth status${RESET}   # verify"

if command -v heygen &>/dev/null; then
  HEYGEN_VERSION="$(heygen --version 2>/dev/null | head -n1 || echo 'unknown')"
  ok "heygen CLI detected: ${HEYGEN_VERSION}"
  if heygen auth status &>/dev/null; then
    ok "heygen auth OK"
  else
    warn "heygen not authenticated — run: heygen auth login  (or export HEYGEN_API_KEY=<key>)"
  fi
else
  warn "heygen CLI not found on PATH (optional — only needed if MCP isn't connected)"
fi

# ─── Summary ─────────────────────────────────────────────────
echo ""
echo "${BOLD}Installed skills:${RESET}"
for skill in "${SKILLS[@]}"; do
  echo "  - $skill"
done

echo ""
echo "${BOLD}Next step:${RESET}"
echo "  Ask your agent: \"Create my HeyGen avatar\""
echo ""