install.sh

#!/usr/bin/env bash
# claude-sync — one-shot installer.
# Idempotent: safe to re-run; backs up your existing settings.json each time.

set -e

# ───────── Where things go ─────────
CLAUDE_DIR="$HOME/.claude"
SKILL_DIR="$CLAUDE_DIR/skills/prompt-quality-coaching"
SCRIPTS_DIR="$CLAUDE_DIR/scripts"
STATE_FILE="$CLAUDE_DIR/sync_state.json"
RES_FILE="$CLAUDE_DIR/sync_resources.json"
WRAPPER="$CLAUDE_DIR/statusline_with_sync.sh"
SETTINGS="$CLAUDE_DIR/settings.json"

# ───────── Pre-checks ─────────
if ! command -v jq >/dev/null 2>&1; then
  echo "❌ jq is required. Install it (macOS: brew install jq; Debian: apt install jq) and re-run."
  exit 1
fi

if [ ! -d "$CLAUDE_DIR" ]; then
  echo "ℹ Creating $CLAUDE_DIR"
  mkdir -p "$CLAUDE_DIR"
fi

mkdir -p "$SKILL_DIR" "$SCRIPTS_DIR"

# ───────── Resolve source dir (this script's location) ─────────
SRC="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

# ───────── Copy skill ─────────
cp "$SRC/skills/prompt-quality-coaching/SKILL.md" "$SKILL_DIR/SKILL.md"
echo "✓ Skill installed: $SKILL_DIR/SKILL.md"

# ───────── Copy scripts ─────────
cp "$SRC/scripts/update_sync.sh" "$SCRIPTS_DIR/"
cp "$SRC/scripts/sync_report.sh" "$SCRIPTS_DIR/"
chmod +x "$SCRIPTS_DIR/update_sync.sh" "$SCRIPTS_DIR/sync_report.sh"
echo "✓ Scripts installed in $SCRIPTS_DIR"

# ───────── Copy resources catalog (don't overwrite if user customized it) ─────────
if [ -f "$RES_FILE" ]; then
  echo "ℹ $RES_FILE already exists — keeping yours. Diff against the new template:"
  diff -q "$RES_FILE" "$SRC/sync_resources.json" || true
else
  cp "$SRC/sync_resources.json" "$RES_FILE"
  echo "✓ Resources catalog seeded at $RES_FILE"
fi

# ───────── Init state if missing ─────────
if [ ! -f "$STATE_FILE" ]; then
  cp "$SRC/sync_state.json.example" "$STATE_FILE"
  echo "✓ Fresh sync_state.json initialized at 100%"
else
  CURRENT=$(jq -r '.score' "$STATE_FILE" 2>/dev/null || echo "?")
  echo "ℹ Existing sync_state.json kept (current score: ${CURRENT}%)"
fi

# ───────── Install statusline wrapper ─────────
cp "$SRC/statusline_with_sync.sh" "$WRAPPER"
chmod +x "$WRAPPER"
echo "✓ Statusline wrapper installed at $WRAPPER"

# ───────── Wire up settings.json (optional) ─────────
if [ -f "$SETTINGS" ]; then
  BACKUP="$SETTINGS.bak.$(date +%Y%m%d-%H%M%S)"
  cp "$SETTINGS" "$BACKUP"
  echo "ℹ Backed up settings.json → $BACKUP"

  CURRENT_CMD=$(jq -r '.statusLine.command // ""' "$SETTINGS")
  if [ "$CURRENT_CMD" = "bash $WRAPPER" ]; then
    echo "✓ statusLine already pointing to the wrapper"
  else
    echo ""
    echo "═══════════════════════════════════════════════════════════════"
    echo "Your current statusLine command is:"
    echo "  $CURRENT_CMD"
    echo ""
    echo "The wrapper expects to RUN your existing statusline first, then"
    echo "append the Sync badge. Edit ~/.claude/statusline_with_sync.sh and"
    echo "replace the line that calls your statusline with your real one,"
    echo "OR just leave the default and the wrapper will skip the prefix."
    echo ""
    echo "To activate Sync in your statusline, set:"
    echo "  jq '.statusLine.command = \"bash $WRAPPER\"' $SETTINGS > /tmp/x \\"
    echo "    && mv /tmp/x $SETTINGS"
    echo "═══════════════════════════════════════════════════════════════"
  fi
else
  echo "ℹ No settings.json found. To enable the Sync badge in your statusline:"
  echo "  echo '{\"statusLine\":{\"type\":\"command\",\"command\":\"bash $WRAPPER\"}}' > $SETTINGS"
fi

echo ""
echo "🎉 claude-sync installed."
echo ""
echo "Try it:"
echo "  ~/.claude/scripts/sync_report.sh"
echo "  ~/.claude/scripts/update_sync.sh clean \"first install\""
echo ""
echo "Skill is now discoverable by Claude. Trigger phrases:"
echo "  • \"What is my sync?\"   → current score"
echo "  • \"Give me recommendations\"  → study suggestions"
echo "  • \"How did this session go?\" → session summary"