#!/bin/bash

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

if [ -z "$1" ]; then
  echo "Please provide SERVER_HOST as argument"
  exit 1
fi

REMOTE_USER="root"
SERVER_HOST=$1
SECRETS_PATH=/data/secrets/$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

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

apt-get update -y install -y sshpass

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


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

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

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

# If finded, 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"
fi

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\"
    }"


# 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

# Run init-server:
echo "Run init-server.sh..."
bash init-server.sh

# 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

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 "