#!/bin/bash

if [ "$(id -u)" != "0" ]; then
    echo -e "\033[31mThis script requires superuser rights.\033[0m"
    exit 0
fi

if [ -z "$1" ] || [ -z "$2" ] || [ -z "$3" ]; then
  echo "Please provide SERVER_HOST SERVER_ORIGIN_PASSWORD GITEA_API_ADD_SSH_KEY as arguments"
  exit 1
fi

SERVER_HOST=$1
SERVER_ORIGIN_PASSWORD=$2
GITEA_API_ADD_SSH_KEY=$3

REMOTE_USER="root"
SECRETS_PATH=/data/secrets/$SERVER_HOST/$SERVER_HOST.env

trap 'echo -e "\033[31minstall.sh: Something went wrong\033[0m"; exit 1' ERR
set -e

export DEBIAN_FRONTEND=noninteractive

source $SECRETS_PATH

echo "Keygen SSH keys for $SERVER_NAME..."
if [ -f ~/.ssh/id_ed25519 ]; then
  echo "SSH key already exists: ~/.ssh/id_ed25519"
else
  ssh-keygen -t ed25519 -C "$SERVER_NAME" -f ~/.ssh/id_ed25519 -N ""
fi

echo "Install sshpass..."
apt-get update
apt-get install -y sshpass

echo "Install public SSH key from HOST to ORIGIN..."
sshpass -p $SERVER_ORIGIN_PASSWORD ssh-copy-id -i ~/.ssh/id_ed25519.pub -o StrictHostKeyChecking=no $REMOTE_USER@$SERVER_ORIGIN_DOMAIN


echo "Add public SSH key to gitea app..."
SSH_PUBLIC_KEY=$(cat ~/.ssh/id_ed25519.pub)

echo "Get SSH keys list from gitea API..."
keys=$(curl -X GET -H "Authorization: token $GITEA_API_ADD_SSH_KEY" "https://$GITEA_DOMAIN/api/v1/user/keys")

echo "Search SSH key in gitea..."
existing_key_id=$(echo $keys | jq -r ".[] | select(.title == \"$SERVER_NAME\") | .id")

echo "If already exist SSH key in gitea, remove it..."
if [ -n "$existing_key_id" ]; then
  curl -X DELETE -H "Authorization: token $GITEA_API_ADD_SSH_KEY" "https://$GITEA_DOMAIN/api/v1/user/keys/$existing_key_id"
  echo "SSH key removed"
fi

echo "Add new SSH public key in gitea..."
curl -X POST \
    "https://$GITEA_DOMAIN/api/v1/user/keys" \
    -H "Authorization: token $GITEA_API_ADD_SSH_KEY" \
    -H "Content-Type: application/json" \
    -d "{
      \"title\": \"$SERVER_NAME\",
      \"key\": \"$SSH_PUBLIC_KEY\"
    }"


echo "Install utils from gitea origin..."
cd /data
echo "Connect to git repository on host: $GIT_SSH_DOMAIN"
echo "On username: $GIT_USER"
git clone git@"$GIT_SSH_DOMAIN":"$GIT_USER"/utils.git
cd /data/utils


echo "Run init-server script..."
bash init-server.sh

echo "create global environment vars..."
bash global-env.sh SERVER_DOMAIN $SERVER_HOST
bash global-env.sh ADMIN_EMAIL $ADMINEMAIL
bash global-env.sh SRV_START_DIR $SERVER_NAME

echo "Install $SERVER_NAME from gitea origin..."
cd /data
echo "Connect to git repository on host: $GIT_SSH_DOMAIN"
echo "On username: $GIT_USER"
git clone git@"$GIT_SSH_DOMAIN":"$GIT_USER"/$SERVER_NAME.git
cd /data/$SERVER_NAME

echo "Run $SERVER_NAME install.sh..."
bash /data/$SERVER_NAME/install.sh $SERVER_HOST

trap - ERR
echo "Install complete. Please exit and login again on port $SSH_PORT with ssh key "