#!/usr/bin/env bash
# =============================================================================
# setup_cron.sh — Register a weekly cron job that automatically:
#   1. Re-fetches documentation from all 5 company help centers
#   2. Ingests the fresh content into the ChromaDB vector store
#
# Usage:
#   chmod +x scripts/setup_cron.sh
#   ./scripts/setup_cron.sh
#
# To remove the cron job later:
#   crontab -l | grep -v "fetch_company_docs" | crontab -
# =============================================================================

set -euo pipefail

# ── Resolve absolute paths ────────────────────────────────────────────────────
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
APP_DIR="$(dirname "$SCRIPT_DIR")"
PYTHON="$APP_DIR/.venv/bin/python"
LOG_FILE="$APP_DIR/logs/cron_ingest.log"

if [ ! -f "$PYTHON" ]; then
    echo "ERROR: Python not found at $PYTHON"
    echo "Make sure the virtual environment is set up: cd $APP_DIR && python -m venv .venv && pip install -r requirements.txt"
    exit 1
fi

mkdir -p "$APP_DIR/logs"

# ── Build the cron command ────────────────────────────────────────────────────
# Runs every Sunday at 02:00 AM
CRON_SCHEDULE="0 2 * * 0"

INGEST_CMD="cd \"$APP_DIR\" && \
  \"$PYTHON\" scripts/fetch_company_docs.py >> \"$LOG_FILE\" 2>&1 && \
  \"$PYTHON\" main.py ingest \
    data/notion/notion_support_docs.txt \
    data/slack/slack_support_docs.txt \
    data/github/github_support_docs.txt \
    data/zoom/zoom_support_docs.txt \
    data/shopify/shopify_support_docs.txt \
    >> \"$LOG_FILE\" 2>&1"

CRON_LINE="$CRON_SCHEDULE $INGEST_CMD"

# ── Install (idempotent) ──────────────────────────────────────────────────────
echo "Installing weekly cron job…"
echo "Schedule : $CRON_SCHEDULE  (every Sunday at 02:00)"
echo "App dir  : $APP_DIR"
echo "Log file : $LOG_FILE"
echo ""

# Remove any existing entry for this script, then add the new one
( crontab -l 2>/dev/null | grep -v "fetch_company_docs"; echo "$CRON_LINE" ) | crontab -

echo "✓ Cron job installed successfully."
echo ""
echo "Verify with: crontab -l"
echo ""
echo "To run manually right now:"
echo "  cd \"$APP_DIR\" && \\"
echo "  \"$PYTHON\" scripts/fetch_company_docs.py && \\"
echo "  \"$PYTHON\" main.py ingest \\"
echo "    data/notion/notion_support_docs.txt \\"
echo "    data/slack/slack_support_docs.txt \\"
echo "    data/github/github_support_docs.txt \\"
echo "    data/zoom/zoom_support_docs.txt \\"
echo "    data/shopify/shopify_support_docs.txt"