#!/usr/bin/env bash

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
cd "$SCRIPT_DIR"

COMPOSE_FILE="${COMPOSE_FILE:-docker-compose.yml}"
ENV_FILE="${ENV_FILE:-.env}"
PROJECT_NAME="${PROJECT_NAME:-ai-trading}"

if ! command -v docker >/dev/null 2>&1; then
  echo "[ERROR] docker 未安装，请先安装 Docker。"
  exit 1
fi

if ! docker compose version >/dev/null 2>&1; then
  echo "[ERROR] docker compose 不可用，请升级 Docker Desktop 或安装 compose 插件。"
  exit 1
fi

if [[ ! -f "$COMPOSE_FILE" ]]; then
  echo "[ERROR] 未找到 $COMPOSE_FILE"
  exit 1
fi

MODE="${1:-local}"
ACTION="${2:-up}"
QUERY="${3:-}"

compose_cmd=(
  docker compose
  -p "$PROJECT_NAME"
  -f "$COMPOSE_FILE"
)

if [[ -n "$ENV_FILE" ]]; then
  if [[ -f "$ENV_FILE" ]]; then
    compose_cmd+=(--env-file "$ENV_FILE")
  else
    echo "[WARN] 未找到 env 文件: ${ENV_FILE}, 已跳过 --env-file"
  fi
fi

show_help() {
  cat <<'EOF'
用法:
  ./start.sh [mode] [action]

mode:
  local   本地开发（默认）
  prod    生产部署

action:
  up       启动服务（默认）
  down     停止并删除容器/网络
  restart  重启服务
  quick    一键清理并启动（cleanup + up + web）
  logs     查看日志（Ctrl+C 退出）
  status   查看服务状态
  pull     拉取基础镜像
  build    构建镜像
  quote    股票速查（代码/名称）
  web      启动前端页面（信息+曲线+买卖点）
  cleanup  清理历史遗留容器/项目（推荐迁移后执行一次）

示例:
  ./start.sh local up
  ./start.sh local logs
  ./start.sh local quote 600519
  ./start.sh local quote 贵州茅台
  ./start.sh local web
  ./start.sh prod up
  ./start.sh prod restart

可选环境变量:
  COMPOSE_FILE   指定 compose 文件（默认 docker-compose.yml）
  ENV_FILE       指定环境变量文件（默认 .env）
  PROJECT_NAME   compose 项目名（默认 ai-trading）
EOF
}

run_local() {
  case "$ACTION" in
    up)
      "${compose_cmd[@]}" up --build -d redis go-service
      ;;
    down)
      "${compose_cmd[@]}" down
      ;;
    restart)
      "${compose_cmd[@]}" down
      "${compose_cmd[@]}" up --build -d
      ;;
    quick)
      "${compose_cmd[@]}" down --remove-orphans || true
      docker compose -p aitrading -f "$COMPOSE_FILE" down --remove-orphans 2>/dev/null || true
      stale_run_ids="$(docker ps -aq --filter "name=^ai-trading-python-app-run-")"
      if [[ -n "$stale_run_ids" ]]; then
        docker rm -f $stale_run_ids >/dev/null 2>&1 || true
      fi
      docker rm -f ai-trading-redis >/dev/null 2>&1 || true
      "${compose_cmd[@]}" up --build -d redis go-service web
      echo "[INFO] Quick 启动完成: http://localhost:8000"
      ;;
    logs)
      "${compose_cmd[@]}" logs -f --tail=200
      ;;
    status)
      "${compose_cmd[@]}" ps
      ;;
    pull)
      "${compose_cmd[@]}" pull || true
      ;;
    build)
      "${compose_cmd[@]}" build
      ;;
    quote)
      if [[ -z "$QUERY" ]]; then
        "${compose_cmd[@]}" run --rm --no-deps python-app python app/stock_lookup.py
      else
        "${compose_cmd[@]}" run --rm --no-deps python-app python app/stock_lookup.py "$QUERY"
      fi
      ;;
    web)
      "${compose_cmd[@]}" up --build -d web
      echo "[INFO] Web 已启动: http://localhost:8000"
      ;;
    cleanup)
      # 1) 优先清理当前 compose 项目里的孤儿资源
      "${compose_cmd[@]}" down --remove-orphans || true

      # 2) 清理历史旧项目名（未显式 -p 时常见）
      docker compose -p aitrading -f "$COMPOSE_FILE" down --remove-orphans 2>/dev/null || true

      # 3) 清理遗留临时容器（例如 ai-trading-python-app-run-xxxxx）
      stale_run_ids="$(docker ps -aq --filter "name=^ai-trading-python-app-run-")"
      if [[ -n "$stale_run_ids" ]]; then
        docker rm -f $stale_run_ids >/dev/null 2>&1 || true
      fi

      # 4) 清理曾经手动起的固定 redis 容器
      docker rm -f ai-trading-redis >/dev/null 2>&1 || true
      echo "[INFO] 清理完成，建议执行: ./start.sh local up && ./start.sh local web"
      ;;
    *)
      echo "[ERROR] 不支持的 action: $ACTION"
      show_help
      exit 1
      ;;
  esac
}

run_prod() {
  case "$ACTION" in
    up)
      "${compose_cmd[@]}" pull || true
      "${compose_cmd[@]}" up -d --build --remove-orphans redis go-service
      ;;
    down)
      "${compose_cmd[@]}" down
      ;;
    restart)
      "${compose_cmd[@]}" up -d --build --force-recreate --remove-orphans
      ;;
    quick)
      "${compose_cmd[@]}" down --remove-orphans || true
      docker compose -p aitrading -f "$COMPOSE_FILE" down --remove-orphans 2>/dev/null || true
      stale_run_ids="$(docker ps -aq --filter "name=^ai-trading-python-app-run-")"
      if [[ -n "$stale_run_ids" ]]; then
        docker rm -f $stale_run_ids >/dev/null 2>&1 || true
      fi
      docker rm -f ai-trading-redis >/dev/null 2>&1 || true
      "${compose_cmd[@]}" pull || true
      "${compose_cmd[@]}" up -d --build --remove-orphans redis go-service web
      echo "[INFO] Quick 启动完成: http://localhost:8000"
      ;;
    logs)
      "${compose_cmd[@]}" logs -f --tail=300
      ;;
    status)
      "${compose_cmd[@]}" ps
      ;;
    pull)
      "${compose_cmd[@]}" pull || true
      ;;
    build)
      "${compose_cmd[@]}" build --pull
      ;;
    quote)
      if [[ -z "$QUERY" ]]; then
        "${compose_cmd[@]}" run --rm --no-deps python-app python app/stock_lookup.py
      else
        "${compose_cmd[@]}" run --rm --no-deps python-app python app/stock_lookup.py "$QUERY"
      fi
      ;;
    web)
      "${compose_cmd[@]}" up -d --build --remove-orphans web
      echo "[INFO] Web 已启动: http://localhost:8000"
      ;;
    cleanup)
      "${compose_cmd[@]}" down --remove-orphans || true
      docker compose -p aitrading -f "$COMPOSE_FILE" down --remove-orphans 2>/dev/null || true
      stale_run_ids="$(docker ps -aq --filter "name=^ai-trading-python-app-run-")"
      if [[ -n "$stale_run_ids" ]]; then
        docker rm -f $stale_run_ids >/dev/null 2>&1 || true
      fi
      docker rm -f ai-trading-redis >/dev/null 2>&1 || true
      echo "[INFO] 清理完成，建议执行: ./start.sh prod up && ./start.sh prod web"
      ;;
    *)
      echo "[ERROR] 不支持的 action: $ACTION"
      show_help
      exit 1
      ;;
  esac
}

if [[ "$MODE" == "-h" || "$MODE" == "--help" ]]; then
  show_help
  exit 0
fi

echo "[INFO] mode=$MODE action=$ACTION compose=$COMPOSE_FILE env=$ENV_FILE project=$PROJECT_NAME"

case "$MODE" in
  local)
    run_local
    ;;
  prod)
    run_prod
    ;;
  *)
    echo "[ERROR] 不支持的 mode: $MODE"
    show_help
    exit 1
    ;;
esac

echo "[INFO] 完成: mode=$MODE action=$ACTION"