install.sh

#!/bin/bash
set -euo pipefail

# install.sh — Install code-diary hook for Claude Code
# Creates a "Code" Reminders list and registers a global PostToolUse hook
# that logs git commits and PRs as completed Reminders.

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
HOOK_SRC="${SCRIPT_DIR}/code-diary.sh"
HOOK_DIR="${HOME}/.claude/hooks"
HOOK_DEST="${HOOK_DIR}/code-diary.sh"
SETTINGS="${HOME}/.claude/settings.json"

echo "=== Code Diary Hook Installer ==="
echo ""

# --- Check dependencies ---
MISSING=()
if ! command -v reminders &>/dev/null; then
    MISSING+=("reminders-cli (brew install keith/formulae/reminders-cli)")
fi
if ! command -v jq &>/dev/null; then
    MISSING+=("jq (brew install jq)")
fi
if ! command -v git &>/dev/null; then
    MISSING+=("git")
fi

if [ ${#MISSING[@]} -gt 0 ]; then
    echo "Missing dependencies:"
    for dep in "${MISSING[@]}"; do
        echo "  - $dep"
    done
    echo ""
    read -p "Install missing dependencies via Homebrew? [y/N] " -n 1 -r
    echo ""
    if [[ $REPLY =~ ^[Yy]$ ]]; then
        command -v reminders &>/dev/null || brew install keith/formulae/reminders-cli
        command -v jq &>/dev/null || brew install jq
    else
        echo "Please install dependencies and re-run."
        exit 1
    fi
fi

echo "[ok] Dependencies: reminders-cli, jq, git"

# --- Copy hook script ---
mkdir -p "$HOOK_DIR"
cp "$HOOK_SRC" "$HOOK_DEST"
chmod +x "$HOOK_DEST"
echo "[ok] Hook script installed to ${HOOK_DEST}"

# --- Ensure "Code" list exists in Reminders ---
reminders new-list "Code" 2>/dev/null || true
echo "[ok] Reminders 'Code' list ready"

# --- Register hook in settings.json ---
if [ ! -f "$SETTINGS" ]; then
    # Create minimal settings.json
    echo '{}' > "$SETTINGS"
fi

# Check if code-diary hook is already registered
if jq -e '.hooks.PostToolUse[]? | select(.hooks[]?.command | test("code-diary"))' "$SETTINGS" &>/dev/null; then
    echo "[ok] Hook already registered in settings.json (skipped)"
else
    # Add the hook entry using jq
    HOOK_ENTRY='{
        "matcher": "Bash",
        "hooks": [
            {
                "type": "command",
                "command": "'"${HOOK_DEST}"'",
                "timeout": 5
            }
        ]
    }'

    # Ensure hooks.PostToolUse array exists, then append
    UPDATED=$(jq --argjson entry "$HOOK_ENTRY" '
        .hooks //= {} |
        .hooks.PostToolUse //= [] |
        .hooks.PostToolUse += [$entry]
    ' "$SETTINGS")

    echo "$UPDATED" > "$SETTINGS"
    echo "[ok] Hook registered in ${SETTINGS}"
fi

echo ""
echo "=== Installation complete ==="
echo ""
echo "The hook will create a completed Reminder in the 'Code' list"
echo "whenever Claude Code runs: git commit, gh pr create, or gh pr merge."
echo ""
echo "To uninstall: ./uninstall.sh"
echo "To test:      echo '{\"tool_name\":\"Bash\",\"tool_input\":{\"command\":\"git commit -m test\"},\"tool_response\":\"[main abc1234] test message\\n 1 file changed\",\"cwd\":\"/tmp/test\"}' | ${HOOK_DEST}"