install.sh

#!/usr/bin/env bash
# install.sh — install the Claude Code Toolkit into ~/.claude/.
# Idempotent: re-running upgrades in place. Backs up anything it overwrites.
# Usage: bash install.sh           # install / upgrade
#        bash install.sh --uninstall

set -euo pipefail

REPO_DIR="$(cd "$(dirname "$0")" && pwd)"
CLAUDE_DIR="${CLAUDE_DIR:-$HOME/.claude}"
SETTINGS="$CLAUDE_DIR/settings.json"
CLAUDEMD="$CLAUDE_DIR/CLAUDE.md"
TS="$(date +%Y%m%d-%H%M%S)"
BACKUP="$CLAUDE_DIR/.toolkit-backup-$TS"

command -v jq >/dev/null 2>&1 || { echo "Error: jq is required. Install with: brew install jq"; exit 1; }

mkdir -p "$CLAUDE_DIR/skills" "$CLAUDE_DIR/agents" "$CLAUDE_DIR/hooks"

backup() {
  local src="$1"
  [ -e "$src" ] || return 0
  mkdir -p "$BACKUP"
  cp -R "$src" "$BACKUP/"
}

uninstall() {
  echo "Uninstalling Claude Code Toolkit..."
  for s in my-ship-it my-tidy my-council; do
    rm -rf "$CLAUDE_DIR/skills/$s"
  done
  for a in my-code-reviewer my-refactor-surgeon my-test-writer; do
    rm -f "$CLAUDE_DIR/agents/$a.md"
  done
  for h in pre-edit-guard.sh post-edit-format.sh pre-bash-safety.sh stop-summary.sh; do
    rm -f "$CLAUDE_DIR/hooks/$h"
  done
  if [ -f "$SETTINGS" ]; then
    backup "$SETTINGS"
    tmp="$(mktemp)"
    jq 'del(.hooks)' "$SETTINGS" > "$tmp" && mv "$tmp" "$SETTINGS"
    echo "  removed hooks block from $SETTINGS"
  fi
  echo "Done. CLAUDE.md ruleset left intact — delete by hand if desired."
  exit 0
}

[ "${1:-}" = "--uninstall" ] && uninstall

echo "Installing Claude Code Toolkit into $CLAUDE_DIR ..."

# 1. Skills
for s in my-ship-it my-tidy my-council; do
  dst="$CLAUDE_DIR/skills/$s"
  [ -e "$dst" ] && backup "$dst" && rm -rf "$dst"
  cp -R "$REPO_DIR/skills/$s" "$dst"
  echo "  installed skill: $s"
done

# 2. Agents
for a in my-code-reviewer my-refactor-surgeon my-test-writer; do
  dst="$CLAUDE_DIR/agents/$a.md"
  [ -e "$dst" ] && backup "$dst"
  cp "$REPO_DIR/agents/$a.md" "$dst"
  echo "  installed agent: $a"
done

# 3. Hooks
for h in pre-edit-guard.sh post-edit-format.sh pre-bash-safety.sh stop-summary.sh; do
  dst="$CLAUDE_DIR/hooks/$h"
  [ -e "$dst" ] && backup "$dst"
  cp "$REPO_DIR/hooks/$h" "$dst"
  chmod +x "$dst"
  echo "  installed hook: $h"
done

# 4. Append CLAUDE.md ruleset (if not already present)
SNIPPET="$REPO_DIR/docs/CLAUDE-snippet.md"
if [ ! -f "$CLAUDEMD" ] || ! grep -q "^# Code quality defaults" "$CLAUDEMD" 2>/dev/null; then
  [ -f "$CLAUDEMD" ] && backup "$CLAUDEMD"
  printf '\n' >> "$CLAUDEMD"
  cat "$SNIPPET" >> "$CLAUDEMD"
  echo "  appended Code-Quality-Defaults to $CLAUDEMD"
else
  echo "  CLAUDE.md already has the ruleset — skipped"
fi

# 5. Register hooks in settings.json
[ -f "$SETTINGS" ] || echo '{}' > "$SETTINGS"
backup "$SETTINGS"

HOOKS_JSON=$(cat <<'JSON'
{
  "PreToolUse": [
    { "matcher": "Edit|Write|MultiEdit", "hooks": [{ "type": "command", "command": "bash ~/.claude/hooks/pre-edit-guard.sh" }] },
    { "matcher": "Bash",                  "hooks": [{ "type": "command", "command": "bash ~/.claude/hooks/pre-bash-safety.sh" }] }
  ],
  "PostToolUse": [
    { "matcher": "Edit|Write|MultiEdit", "hooks": [{ "type": "command", "command": "bash ~/.claude/hooks/post-edit-format.sh" }] }
  ],
  "Stop": [
    { "hooks": [{ "type": "command", "command": "bash ~/.claude/hooks/stop-summary.sh" }] }
  ]
}
JSON
)

# Resolve ~ in commands to the user's home so the harness can exec them.
HOOKS_JSON="$(printf '%s' "$HOOKS_JSON" | sed "s|~/.claude|$CLAUDE_DIR|g")"

tmp="$(mktemp)"
jq --argjson new "$HOOKS_JSON" '.hooks = $new' "$SETTINGS" > "$tmp" && mv "$tmp" "$SETTINGS"
echo "  registered hooks in $SETTINGS"

echo ""
echo "Done. Backups (if any) at: $BACKUP"
echo "Restart Claude Code, then try: /my-ship-it, /my-tidy, /my-council"