#!/usr/bin/env bash
# Rebuild acore_world from data/sql/base/db_world only (AzerothCore "shortcut"):
# the shipped base `updates` table already records archived migrations as applied,
# so worldserver only needs to run pending files under data/sql/updates/db_world
# (and your custom/pending paths if used).
#
# Usage:
#   export MYSQL_PWD='...'
#   ./scripts/world-db-from-base.sh -h 10.0.13.252 -u acore -D acore_world
#
# Requires: mysql client. Optional: pass --force to skip confirmation.

set -euo pipefail

usage() {
  echo "Usage: $0 -h HOST -u USER -D DATABASE [--port PORT] [--force]" >&2
  echo "  Or set: MYSQL_HOST MYSQL_USER MYSQL_DATABASE [MYSQL_PWD in env]" >&2
  exit 1
}

HOST="${MYSQL_HOST:-}"
USER="${MYSQL_USER:-}"
DBNAME="${MYSQL_DATABASE:-}"
PORT="${MYSQL_PORT:-3306}"
FORCE=0

while [[ $# -gt 0 ]]; do
  case "$1" in
    -h) HOST="$2"; shift 2 ;;
    -u) USER="$2"; shift 2 ;;
    -D) DBNAME="$2"; shift 2 ;;
    --port) PORT="$2"; shift 2 ;;
    --force) FORCE=1; shift ;;
    *) usage ;;
  esac
done

: "${HOST:?set -h or MYSQL_HOST}"
: "${USER:?set -u or MYSQL_USER}"
: "${DBNAME:?set -D or MYSQL_DATABASE}"

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
BASE_DIR="$REPO_ROOT/data/sql/base/db_world"

if [[ ! -d "$BASE_DIR" ]]; then
  echo "Base directory not found: $BASE_DIR" >&2
  exit 1
fi

if [[ "$FORCE" -ne 1 ]]; then
  read -r -p "DESTROY database '$DBNAME' on $HOST and rebuild from base? [yes/no]: " ans
  [[ "$ans" == "yes" ]] || { echo "Aborted."; exit 1; }
fi

MYSQL=(mysql -h "$HOST" -P "$PORT" -u "$USER" --protocol=tcp)
"${MYSQL[@]}" -e "DROP DATABASE IF EXISTS \`$DBNAME\`; CREATE DATABASE \`$DBNAME\` CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;"

mapfile -t SQL_FILES < <(find "$BASE_DIR" -maxdepth 1 -name '*.sql' -printf '%f\n' | sort)

for f in "${SQL_FILES[@]}"; do
  echo ">> $f"
  "${MYSQL[@]}" "$DBNAME" <"$BASE_DIR/$f"
done

echo ">> Done. Start worldserver once; it should report World DB up-to-date or only apply updates/db_world."