#!/bin/bash
# ===========================================
# 通过 SSH 在服务器上执行 SQL，设置指定用户的付费状态
# ===========================================

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
PROJECT_ROOT="$(dirname "$SCRIPT_DIR")"
ENV_FILE="$PROJECT_ROOT/.env"

get_ssh_host() {
    grep '^SSH_SERVER=' "$ENV_FILE" 2>/dev/null | head -1 | cut -d'=' -f2- | tr -d '"' | tr -d "'" | xargs
}

usage() {
    echo "用法: $0 <user_id> [--permanent|--expires YYYY-MM-DD|--cancel]"
    echo ""
    echo "  user_id          用户 ID（必填）"
    echo "  --monthly         设为月会员（30天）
  --permanent      设为永久会员（is_member=true, membership_expires_at=NULL）"
    echo "  --expires DATE   设为指定日期到期（格式: YYYY-MM-DD）"
    echo "  --cancel         取消付费状态（is_member=false, membership_expires_at=NULL）"
    echo ""
    echo "示例:"
    echo "  $0 1 --permanent   # 用户 1 永久会员"
    echo "  $0 1 --expires 2027-12-31  # 2027-12-31 到期"
    echo "  $0 1 --cancel     # 取消付费"
    exit 0
}

# ---------- 参数解析 ----------
USER_ID=""; ACTION=""; EXPIRES_DATE=""

while [[ $# -gt 0 ]]; do
    case "$1" in
        --permanent) ACTION="permanent" ;;
        --expires) ACTION="expires"; EXPIRES_DATE="$2"; shift ;;
        --monthly) ACTION="monthly" ;;
        --cancel) ACTION="cancel" ;;
        --dev) DB_NAME="milkydata_dev" ;;
        --help|-h) usage ;;
        *) USER_ID="$1" ;;
    esac
    shift
done

[ -z "$USER_ID" ] && usage
[ -z "$ACTION" ] && usage

# ---------- 连接信息 ----------
SSH_HOST=$(get_ssh_host)
[ -z "$SSH_HOST" ] && { echo "错误: 未配置 SSH_SERVER"; exit 1; }

DB_CONTAINER="1Panel-postgresql-FtMo"
DB_USER="milkydata"
: "${DB_NAME:=milkydata}"  # 默认生产库

# ---------- 构建 SQL ----------
case "$ACTION" in
    permanent)
        SQL="UPDATE users SET is_member = true, membership_expires_at = NULL WHERE id = ${USER_ID};"
        DESC="永久会员"
        ;;
    monthly)
        SQL="UPDATE users SET is_member = true, membership_expires_at = NOW() + INTERVAL '30 days' WHERE id = ${USER_ID};"
        DESC="月会员（30天）"
        ;;
    expires)
        SQL="UPDATE users SET is_member = true, membership_expires_at = '${EXPIRES_DATE}' WHERE id = ${USER_ID};"
        DESC="到期: ${EXPIRES_DATE}"
        ;;
    cancel)
        SQL="UPDATE users SET is_member = false, membership_expires_at = NULL WHERE id = ${USER_ID};"
        DESC="取消付费"
        ;;
esac

echo ""
echo "═══════════════════════════════════════"
echo "  操作:   用户 ${USER_ID} → ${DESC}"
echo "  数据库: ${DB_NAME}（${SSH_HOST}）"
echo "═══════════════════════════════════════"
echo ""
echo "当前状态："
CURRENT_SQL="SELECT id, name, is_member, membership_expires_at FROM users WHERE id = ${USER_ID};"
ssh "$SSH_HOST" "docker exec ${DB_CONTAINER} psql -U ${DB_USER} -d ${DB_NAME} -c \"${CURRENT_SQL}\""
echo ""
echo "将要执行："
echo "  ${SQL}"
echo ""
read -p "确认执行? [y/N] " -n 1 -r; echo
if [ "${REPLY:-N}" != "y" ] && [ "${REPLY:-N}" != "Y" ]; then echo "已取消"; exit 0; fi

echo ""
echo "执行中..."
ssh "$SSH_HOST" "docker exec ${DB_CONTAINER} psql -U ${DB_USER} -d ${DB_NAME} -c \"${SQL}\"" && echo "✅ 操作成功" || echo "❌ 操作失败"

echo ""
echo "验证结果："
VERIFY_SQL="SELECT id, name, phone, type, is_member, is_admin, membership_expires_at FROM users WHERE id = ${USER_ID};"
ssh "$SSH_HOST" "docker exec ${DB_CONTAINER} psql -U ${DB_USER} -d ${DB_NAME} -c \"${VERIFY_SQL}\""
echo ""