#!/bin/bash

# This script is used to install gitea act_runner

. ./env.sh

set -e

ARCH=$(uname -m)
echo "Architecture $ARCH"
DOWNLOAD_VARIANT=""
ACT_RUNNER_VERSION="0.2.11"
RUNNER="$INSTALL_DIR/act_runner"

if [[ "$ARCH" == "amd64" ]]; then
  DOWNLOAD_VARIANT="amd64"
elif [[ "$ARCH" == "aarch64" ]]; then
  DOWNLOAD_VARIANT="arm64"
else
  echo "Unsupported architecture: $ARCH"
  exit 1
fi

DOWNLOAD_URL="https://dl.gitea.com/act_runner/$ACT_RUNNER_VERSION/act_runner-$ACT_RUNNER_VERSION-linux-$DOWNLOAD_VARIANT"

mkdir -p "$INSTALL_DIR"

wget -q "$DOWNLOAD_URL" -O "$RUNNER" || {
  echo "Failed to download act_runner from $DOWNLOAD_URL"
  exit 1
}
chmod +x "$INSTALL_DIR/act_runner"
echo "act_runner downloaded and made executable."

$RUNNER generate-config > "$INSTALL_DIR/config.yaml"

echo "act_runner config generated."
echo "act_runner config file created at $INSTALL_DIR/config.yaml"

echo "manually add additional labels to the config file - $INSTALL_DIR/config.yaml"
echo "add the following labels to the config file - $INSTALL_DIR/config.yaml"
for label in "${ADDITIONAL_LABLES[@]}"; do
  echo "  - $label"
done

echo "manually add docker socket to the config file - $INSTALL_DIR/config.yaml"
echo "add the following docker socket to the config file - $INSTALL_DIR/config.yaml"
echo "  - $CONTAINER_HOST"

# Create systemd service file
SERVICE_FILE="${SERVICE_NAME}.service"
cp "$SERVICE_FILE.template" "$SERVICE_FILE"

ESC_RUNNER=$(printf '%s' "$RUNNER" | sed 's:/:\\/:g')
ESC_INSTALL_DIR=$(printf '%s' "$INSTALL_DIR" | sed 's:/:\\/:g')

sed -i "s|^ExecStart=.*$|ExecStart=${ESC_RUNNER} daemon --config ${ESC_INSTALL_DIR}/config.yaml|" "$SERVICE_FILE"
sed -i "s|^WorkingDirectory=.*$|WorkingDirectory=${ESC_INSTALL_DIR}|" "$SERVICE_FILE"

mv "$SERVICE_FILE" "$USER_SYSTEMD/$SERVICE_FILE"
systemctl --user daemon-reload
systemctl --user enable "${SERVICE_NAME}.service"

echo "Gitea act_runner installed and systemd service created."
echo "Before starting the service, please edit the config file - $INSTALL_DIR/config.yaml"
echo "and register the runner with your Gitea instance."