#!/usr/bin/env bash

set -euo pipefail

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
ENV_FILE="${ENV_FILE:-$ROOT_DIR/.env}"
BUILD_FLAG="--build"
FOLLOW_LOGS=0

if [[ -f "$ENV_FILE" ]]; then
    set -a
    # shellcheck disable=SC1090
    source "$ENV_FILE"
    set +a
fi

usage() {
    cat <<EOF
Usage: $(basename "$0") [--no-build] [--logs]

Starts the AzerothCore docker stack for this repository.

Options:
  --no-build  Start containers without rebuilding images
  --logs      Follow auth/world logs after startup
  -h, --help  Show this help
EOF
}

log() {
    printf '[start-server] %s\n' "$*"
}

require_docker() {
    if ! command -v docker >/dev/null 2>&1; then
        printf 'docker is not installed or not in PATH\n' >&2
        exit 1
    fi

    if ! docker compose version >/dev/null 2>&1; then
        printf 'docker compose plugin is not available\n' >&2
        printf 'On Ubuntu install: docker-compose-plugin\n' >&2
        exit 1
    fi

    if ! docker info >/dev/null 2>&1; then
        printf 'docker daemon is not reachable\n' >&2
        printf 'On Ubuntu run: sudo systemctl enable --now docker\n' >&2
        printf 'If docker is running but you are a non-root user, add your user to the docker group:\n' >&2
        printf '  sudo usermod -aG docker $USER && newgrp docker\n' >&2
        exit 1
    fi
}

while (($#)); do
    case "$1" in
        --no-build)
            BUILD_FLAG=""
            ;;
        --logs)
            FOLLOW_LOGS=1
            ;;
        -h|--help)
            usage
            exit 0
            ;;
        *)
            printf 'Unknown option: %s\n\n' "$1" >&2
            usage >&2
            exit 1
            ;;
    esac
    shift
done

cd "$ROOT_DIR"

require_docker

log "applying module configuration"
bash "$ROOT_DIR/setup-modules.sh"

log "starting docker services"
if [[ -n "$BUILD_FLAG" ]]; then
    docker compose up -d --build
else
    docker compose up -d
fi

log "synchronizing realmlist"
bash "$ROOT_DIR/sync-realmlist.sh"

log "current service status"
docker compose ps

printf '\n'
printf 'Realm:   %s:%s\n' "${ACORE_REALMLIST_PUBLIC_ADDRESS:-127.0.0.1}" "${ACORE_REALMLIST_PORT:-${DOCKER_WORLD_EXTERNAL_PORT:-8085}}"
printf 'World:   127.0.0.1:%s\n' "${DOCKER_WORLD_EXTERNAL_PORT:-8085}"
printf 'Auth:    127.0.0.1:%s\n' "${DOCKER_AUTH_EXTERNAL_PORT:-3724}"
printf 'SOAP:    127.0.0.1:%s\n' "${DOCKER_SOAP_EXTERNAL_PORT:-7878}"
printf 'Account: ./create-account.sh admin your_password\n'
printf 'RealmDB: ./sync-realmlist.sh\n'
printf 'Logs:    docker compose logs -f ac-worldserver ac-authserver\n'

if (( FOLLOW_LOGS )); then
    docker compose logs -f ac-worldserver ac-authserver
fi