#!/bin/bash
# Example: worktree_created hook
#
# This hook runs after a new worktree is created and before the agent launches.
# Use it to set up the worktree environment (install deps, copy configs, etc.)
# Stdout/stderr is streamed into the new pane's setup UI while this hook runs.
# dmux waits for this hook without a fixed timeout.

set -e  # Exit on error

status() {
  if [ "${DMUX_PROGRESS:-0}" = "1" ]; then
    echo "${DMUX_STATUS_PREFIX:-DMUX_STATUS:} $*"
  else
    echo "[Hook] $*"
  fi
}

status "Setting up worktree: $DMUX_SLUG"

cd "$DMUX_WORKTREE_PATH"

# Install dependencies before the agent launches.
if [ -f "pnpm-lock.yaml" ]; then
  status "Installing dependencies with pnpm"
  pnpm install --prefer-offline
elif [ -f "package-lock.json" ]; then
  status "Installing dependencies with npm"
  npm install
elif [ -f "yarn.lock" ]; then
  status "Installing dependencies with yarn"
  yarn install
fi

# Copy environment file if it exists
if [ -f "$DMUX_ROOT/.env.local" ]; then
  status "Copying .env.local"
  cp "$DMUX_ROOT/.env.local" "$DMUX_WORKTREE_PATH/.env.local"
fi

# Keep existing git author identity.
# Do not set git user.name/user.email in this hook.

# Create a log entry
echo "[$(date)] Created worktree: $DMUX_SLUG | Agent: $DMUX_AGENT | Prompt: $DMUX_PROMPT" \
  >> "$DMUX_ROOT/.dmux/worktree_history.log"

status "Worktree setup complete"