start.sh

#!/bin/sh
set -e

# 防止重复执行（增强锁机制）
LOCK_FILE=/tmp/pansou_start.lock
if [ -f "$LOCK_FILE" ]; then
    LOCK_PID=$(cat "$LOCK_FILE")
    if ps | grep -q "[${LOCK_PID}]"; then
        echo "错误: start.sh已在运行（锁文件 $LOCK_FILE，PID $LOCK_PID）"
        exit 1
    else
        echo "警告: 发现旧锁文件 $LOCK_FILE，已移除"
        rm -f "$LOCK_FILE"
    fi
fi
echo $$ > "$LOCK_FILE"
trap 'rm -f $LOCK_FILE' EXIT

# 默认值
export PANSOU_PORT=${PANSOU_PORT:-8888}
export PANSOU_HOST=${PANSOU_HOST:-127.0.0.1}
export DOMAIN=${DOMAIN:-localhost}

echo "正在启动PanSou服务，配置信息如下："
echo "- 后端地址: ${PANSOU_HOST}:${PANSOU_PORT}"
echo "- 域名: ${DOMAIN}"
echo "- 前端目录: /app/frontend/dist"

# 创建必要目录
mkdir -p /data/pansou_data /data/pansou_logs /tmp/nginx_logs /tmp/nginx-config /tmp/nginx-run \
         /tmp/nginx-tmp/client_temp /tmp/nginx-tmp/proxy_temp /tmp/nginx-tmp/fastcgi_temp \
         /tmp/nginx-tmp/uwsgi_temp /tmp/nginx-tmp/scgi_temp || {
    echo "错误: 无法创建必要目录"
    exit 1
}

# 日志轮转
LOG_FILE=/data/pansou_logs/pansou.log
MAX_SIZE=$((10 * 1024 * 1024)) # 10MB
if [ -f "$LOG_FILE" ]; then
    SIZE=$(stat -f %z "$LOG_FILE" 2>/dev/null || stat -c %s "$LOG_FILE")
    if [ "$SIZE" -gt "$MAX_SIZE" ]; then
        echo "日志文件大小 ($SIZE bytes) 超过限制 ($MAX_SIZE bytes)，执行轮转"
        mv "$LOG_FILE" "${LOG_FILE}.$(date +%F-%H%M%S)"
        find /data/pansou_logs -name "pansou.log.*" -mtime +7 -delete
    fi
fi

# 生成Nginx配置
cat > /tmp/nginx-config/nginx.conf << EOF
worker_processes auto;
error_log /dev/stderr error;
pid /tmp/nginx-run/nginx.pid;
events { worker_connections 1024; }
http {
    client_body_temp_path /tmp/nginx-tmp/client_temp;
    proxy_temp_path /tmp/nginx-tmp/proxy_temp;
    fastcgi_temp_path /tmp/nginx-tmp/fastcgi_temp;
    uwsgi_temp_path /tmp/nginx-tmp/uwsgi_temp;
    scgi_temp_path /tmp/nginx-tmp/scgi_temp;
    include /etc/nginx/mime.types;
    default_type application/octet-stream;
    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                    '$status $body_bytes_sent "$http_referer" '
                    '"$http_user_agent" "$http_x_forwarded_for"';
    access_log /dev/stdout main;
    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    client_max_body_size 20M;
    server {
        listen 7860;
        server_name ${DOMAIN};
        location = /api/health {
            proxy_pass http://${PANSOU_HOST}:${PANSOU_PORT}/api/health;
            proxy_set_header Host \$host;
            proxy_set_header X-Real-IP \$remote_addr;
            proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto \$scheme;
            proxy_connect_timeout 5s;
            proxy_read_timeout 10s;
            proxy_send_timeout 5s;
            proxy_buffering off;
        }
        location = /api/search {
            proxy_pass http://${PANSOU_HOST}:${PANSOU_PORT}/api/search;
            proxy_set_header Host \$host;
            proxy_set_header X-Real-IP \$remote_addr;
            proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto \$scheme;
            proxy_set_header Referer \$http_referer;
            proxy_connect_timeout 15s;
            proxy_read_timeout 60s;
            proxy_send_timeout 15s;
            proxy_buffering off;
        }
        location /api/ {
            proxy_pass http://${PANSOU_HOST}:${PANSOU_PORT}/api/;
            proxy_set_header Host \$host;
            proxy_set_header X-Real-IP \$remote_addr;
            proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto \$scheme;
            proxy_set_header Referer \$http_referer;
            proxy_buffering off;
        }
        location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
            root /app/frontend/dist;
            expires 30d;
            add_header Cache-Control "public, max-age=2592000";
            add_header X-Content-Type-Options nosniff;
        }
        location / {
            root /app/frontend/dist;
            index index.html;
            try_files \$uri \$uri/ /index.html;
            location ~* \.html$ {
                add_header Cache-Control "no-cache, no-store, must-revalidate";
                add_header Pragma "no-cache";
                add_header Expires "0";
            }
        }
    }
}
EOF
echo "Nginx配置已生成"

# 启动pansou并过滤空日志
cd /app
echo "启动pansou..."
/app/pansou 2>&1 | grep -v '\[\] "" *"" *"" *""' > "$LOG_FILE" &
PANSOU_PID=$!
echo "pansou进程ID: $PANSOU_PID"
if ps | grep -q "[${PANSOU_PID}]"; then
    echo "pansou进程正在运行"
else
    echo "错误: pansou进程未能启动"
    sleep 2
    if [ -f "$LOG_FILE" ]; then
        echo "pansou日志内容（前9行）："
        head -n 9 "$LOG_FILE"
    else
        echo "错误: 日志文件未生成"
    fi
    exit 1
fi

# 等待pansou日志初始化
sleep 5
if [ -f "$LOG_FILE" ]; then
    echo "日志文件已生成，内容如下（前9行）："
    head -n 9 "$LOG_FILE"
fi

# 等待pansou服务启动
echo "等待后端服务启动..."
for i in $(seq 1 30); do
    if curl -f http://${PANSOU_HOST}:${PANSOU_PORT}/api/health >/dev/null 2>&1; then
        echo "后端服务启动成功"
        break
    fi
    echo "等待后端服务... ($i/30)"
    sleep 1
done

# 检查后端服务
if ! curl -f http://${PANSOU_HOST}:${PANSOU_PORT}/api/health >/dev/null 2>&1; then
    echo "错误: 后端服务启动失败"
    if [ -f "$LOG_FILE" ]; then
        echo "pansou日志内容（前20行）："
        head -n 20 "$LOG_FILE"
    fi
    exit 1
fi

# 启动Nginx
echo "启动Nginx服务..."
nginx -t -c /tmp/nginx-config/nginx.conf || {
    echo "错误: Nginx配置测试失败"
    exit 1
}
nginx -c /tmp/nginx-config/nginx.conf -g "daemon off;" &

# 显示日志（过滤/health）
echo "所有服务已启动，开始实时显示日志..."
tail -f "$LOG_FILE" | grep -v '[GIN].*/api/health' &

# 等待后台进程
wait