#!/bin/bash

# GAT-LSTM TMP预测模型 API 服务状态查询脚本
# 使用方法: bash status.sh

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PID_FILE="$SCRIPT_DIR/api.pid"
LOG_DIR="$SCRIPT_DIR/logs"
LOG_FILE="$LOG_DIR/api.log"

echo "[服务状态] GAT-LSTM TMP预测模型 API 服务状态"
echo "=========================================="

# 检查PID文件是否存在
if [ ! -f "$PID_FILE" ]; then
    echo "状态: [未运行]"
    echo "PID文件不存在"
    exit 0
fi

# 读取PID
PID=$(cat "$PID_FILE")

# 检查进程是否存在
if ! ps -p $PID > /dev/null 2>&1; then
    echo "状态: [未运行]"
    echo "PID文件存在但进程不存在 (可能异常退出)"
    echo "建议: 运行 bash stop.sh 清理，然后 bash start.sh 重新启动"
    exit 0
fi

# 进程存在，显示详细信息
echo "状态: [运行中]"
echo "PID: $PID"
echo "工作目录: $SCRIPT_DIR"
echo ""

# 显示进程信息
echo "[进程信息]"
ps -p $PID -o pid,ppid,%cpu,%mem,etime,command

echo ""
echo "[文件状态]"
echo "  配置文件: $SCRIPT_DIR/config.yaml"
if [ -f "$SCRIPT_DIR/config.yaml" ]; then
    echo "            [存在]"
else
    echo "            [不存在]"
fi

echo "  日志文件: $LOG_FILE"
if [ -f "$LOG_FILE" ]; then
    LOG_SIZE=$(du -h "$LOG_FILE" | cut -f1)
    LOG_LINES=$(wc -l < "$LOG_FILE")
    echo "            [存在] (大小: $LOG_SIZE, 行数: $LOG_LINES)"
else
    echo "            [不存在]"
fi

echo ""
echo "[服务端点]"
echo "  API文档: http://localhost:7980/docs"
echo "  Swagger UI: http://localhost:7980/docs"
echo "  ReDoc: http://localhost:7980/redoc"
echo "  健康检查: http://localhost:7980/"
echo "  测试接口: http://localhost:7980/api/v1/process_model/test_double_membrance_from_file"

echo ""
echo "[管理命令]"
echo "  查看日志: tail -f $LOG_FILE"
echo "  最近10条日志: tail -n 10 $LOG_FILE"
echo "  停止服务: bash stop.sh"
echo "  重启服务: bash stop.sh && bash start.sh"

# 如果日志文件存在，显示最后几行
if [ -f "$LOG_FILE" ]; then
    echo ""
    echo "[最近5条日志]"
    echo "----------------------------------------"
    tail -n 5 "$LOG_FILE"
    echo "----------------------------------------"
fi

echo ""
echo "=========================================="