#!/usr/bin/env bash
set -euo pipefail

# 这个脚本用于删除已合并到 000001_init.sql 的旧迁移文件
# 使用场景：迁移文件合并后，清理旧的分散文件

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
MIGRATIONS_DIR="${ROOT_DIR}/backend/migrations"

RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[1;34m'
NC='\033[0m'

log() {
  printf "${BLUE}[clean]${NC} %s\n" "$*"
}

log_success() {
  printf "${GREEN}[clean]${NC} %s\n" "$*"
}

log_warn() {
  printf "${YELLOW}[clean]${NC} %s\n" "$*"
}

log_error() {
  printf "${RED}[clean]${NC} %s\n" "$*" >&2
}

# 要删除的旧迁移文件列表
OLD_MIGRATIONS=(
  "000002_payment_refund_schema.sql"
  "000003_add_indexes.sql"
  "000004_add_support_status.sql"
  "000005_add_announcements.sql"
  "000006_insert_sample_announcements.sql"
  "000007_add_announcement_permissions.sql"
  "000008_fix_announcement_charset.sql"
)

main() {
  cd "${MIGRATIONS_DIR}"

  log "检查旧迁移文件..."

  local found=0
  local file
  for file in "${OLD_MIGRATIONS[@]}"; do
    if [[ -f "${file}" ]]; then
      found=$((found + 1))
      log_warn "发现旧文件：${file}"
    fi
  done

  if [[ "${found}" == "0" ]]; then
    log_success "没有发现旧的迁移文件，无需清理"
    exit 0
  fi

  log ""
  log "即将删除 ${found} 个旧迁移文件"
  log "这些文件的内容已经合并到 000001_init.sql 中"
  log ""

  # 确认删除
  read -p "确认删除？(yes/no): " -r
  echo
  if [[ ! "${REPLY}" =~ ^[Yy][Ee][Ss]$ ]]; then
    log "取消删除"
    exit 0
  fi

  # 执行删除
  local deleted=0
  for file in "${OLD_MIGRATIONS[@]}"; do
    if [[ -f "${file}" ]]; then
      rm -f "${file}"
      log_success "已删除：${file}"
      deleted=$((deleted + 1))
    fi
  done

  log ""
  log_success "清理完成，已删除 ${deleted} 个文件"
  log ""
  log "注意事项："
  log "1. 如果是开发环境，建议执行：./scripts/dev.sh --clean-init"
  log "2. 如果是生产环境，建议执行：./scripts/deploy-prod.sh --clean-init"
  log "3. 这些命令会清理旧数据库并使用新的 000001_init.sql 初始化"
}

main "$@"