#!/bin/bash
# filepath: process_pdf_batch.sh

# ============================================================================
# PDF 批量处理脚本
# 功能: 批量调用 ppstructurev3_single_client.py 处理多个 PDF 文件
# ============================================================================

set -e  # 遇到错误立即退出

# ============================================================================
# 默认配置
# ============================================================================
DEFAULT_SCRIPT="ppstructurev3_single_client.py"
DEFAULT_BASE_DIR="/Users/zhch158/workspace/data/流水分析"
DEFAULT_OUTPUT_SUBDIR="data_PPStructureV3_Results"
DEFAULT_API_URL="http://10.192.72.11:8111/layout-parsing"
DEFAULT_TIMEOUT=300

# ============================================================================
# 颜色定义
# ============================================================================
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m' # No Color

# ============================================================================
# 帮助信息
# ============================================================================
usage() {
    cat << EOF
${BLUE}=============================================================================
PDF 批量处理脚本
==============================================================================${NC}

${GREEN}用法:${NC}
    $0 [选项]

${GREEN}选项:${NC}
    -s, --script SCRIPT         Python 脚本路径 (默认: ${DEFAULT_SCRIPT})
    -d, --base-dir DIR          PDF 文件基础目录 (默认: ${DEFAULT_BASE_DIR})
    -o, --output-subdir SUBDIR  输出子目录名称 (默认: ${DEFAULT_OUTPUT_SUBDIR})
    -u, --api-url URL           API 地址 (默认: ${DEFAULT_API_URL})
    -t, --timeout SECONDS       超时时间(秒) (默认: ${DEFAULT_TIMEOUT})
    -f, --file-list FILE        PDF 文件列表文件路径
    -p, --pdf-list "PDF1,PDF2"  PDF 文件列表(逗号分隔)
    -h, --help                  显示此帮助信息

${GREEN}PDF 文件指定方式 (按优先级):${NC}
    1. 通过 -f 参数指定文件列表
    2. 通过 -p 参数直接指定 PDF 列表
    3. 处理基础目录下所有 .pdf 文件

${GREEN}文件列表格式 (每行一个):${NC}
    子目录名/文件名.pdf
    或
    完整路径/文件名.pdf

${GREEN}示例:${NC}
    # 1. 使用文件列表
    $0 -f pdf_list.txt

    # 2. 直接指定 PDF 列表
    $0 -p "A用户_单元格扫描流水.pdf,B用户_扫描流水.pdf"

    # 3. 处理指定目录下所有 PDF
    $0 -d "/path/to/pdfs"

    # 4. 完整参数示例
    $0 -s "./ppstructurev3_single_client.py" \\
       -d "/Users/zhch158/workspace/data/流水分析" \\
       -o "data_PPStructureV3_Results" \\
       -u "http://10.192.72.11:8111/layout-parsing" \\
       -t 600 \\
       -f "pdf_list.txt"

${YELLOW}文件列表示例 (pdf_list.txt):${NC}
    A用户_单元格扫描流水/A用户_单元格扫描流水.pdf
    A用户_单元格图片合成/A用户_单元格图片合成.pdf
    B用户_扫描流水/B用户_扫描流水.pdf
    对公_招商银行图/对公_招商银行图.pdf

EOF
    exit 0
}

# ============================================================================
# 参数解析
# ============================================================================
SCRIPT="${DEFAULT_SCRIPT}"
BASE_DIR="${DEFAULT_BASE_DIR}"
OUTPUT_SUBDIR="${DEFAULT_OUTPUT_SUBDIR}"
API_URL="${DEFAULT_API_URL}"
TIMEOUT="${DEFAULT_TIMEOUT}"
FILE_LIST=""
PDF_LIST=""

while [[ $# -gt 0 ]]; do
    case $1 in
        -s|--script)
            SCRIPT="$2"
            shift 2
            ;;
        -d|--base-dir)
            BASE_DIR="$2"
            shift 2
            ;;
        -o|--output-subdir)
            OUTPUT_SUBDIR="$2"
            shift 2
            ;;
        -u|--api-url)
            API_URL="$2"
            shift 2
            ;;
        -t|--timeout)
            TIMEOUT="$2"
            shift 2
            ;;
        -f|--file-list)
            FILE_LIST="$2"
            shift 2
            ;;
        -p|--pdf-list)
            PDF_LIST="$2"
            shift 2
            ;;
        -h|--help)
            usage
            ;;
        *)
            echo -e "${RED}错误: 未知参数 '$1'${NC}"
            echo "使用 -h 或 --help 查看帮助信息"
            exit 1
            ;;
    esac
done

# ============================================================================
# 验证参数
# ============================================================================
echo -e "${BLUE}==============================================================================${NC}"
echo -e "${BLUE}PDF 批量处理任务启动${NC}"
echo -e "${BLUE}==============================================================================${NC}"
echo ""

# 检查脚本是否存在
if [[ ! -f "${SCRIPT}" ]]; then
    echo -e "${RED}错误: Python 脚本不存在: ${SCRIPT}${NC}"
    exit 1
fi
echo -e "${GREEN}✓ Python 脚本:${NC} ${SCRIPT}"

# 检查基础目录是否存在
if [[ ! -d "${BASE_DIR}" ]]; then
    echo -e "${RED}错误: 基础目录不存在: ${BASE_DIR}${NC}"
    exit 1
fi
echo -e "${GREEN}✓ 基础目录:${NC} ${BASE_DIR}"
echo -e "${GREEN}✓ 输出子目录:${NC} ${OUTPUT_SUBDIR}"
echo -e "${GREEN}✓ API 地址:${NC} ${API_URL}"
echo -e "${GREEN}✓ 超时时间:${NC} ${TIMEOUT} 秒"
echo ""

# ============================================================================
# 构建 PDF 文件列表
# ============================================================================
declare -a PDF_FILES

# 方式1: 从文件列表读取
if [[ -n "${FILE_LIST}" ]]; then
    if [[ ! -f "${FILE_LIST}" ]]; then
        echo -e "${RED}错误: 文件列表不存在: ${FILE_LIST}${NC}"
        exit 1
    fi
    
    echo -e "${YELLOW}从文件列表读取: ${FILE_LIST}${NC}"
    while IFS= read -r line; do
        # 跳过空行和注释
        [[ -z "$line" || "$line" =~ ^# ]] && continue
        
        # 去除首尾空格
        line=$(echo "$line" | xargs)
        
        # 如果是相对路径,补充基础目录
        if [[ "$line" != /* ]]; then
            line="${BASE_DIR}/${line}"
        fi
        
        PDF_FILES+=("$line")
    done < "${FILE_LIST}"

# 方式2: 从逗号分隔的列表读取
elif [[ -n "${PDF_LIST}" ]]; then
    echo -e "${YELLOW}从参数列表读取 PDF 文件${NC}"
    IFS=',' read -ra PDFS <<< "$PDF_LIST"
    for pdf in "${PDFS[@]}"; do
        pdf=$(echo "$pdf" | xargs)  # 去除空格
        
        # 如果是相对路径,补充基础目录
        if [[ "$pdf" != /* ]]; then
            # 检查是否包含子目录
            if [[ "$pdf" == */* ]]; then
                pdf="${BASE_DIR}/${pdf}"
            else
                # 尝试在基础目录的子目录中查找
                pdf_name="${pdf%.pdf}"
                pdf="${BASE_DIR}/${pdf_name}/${pdf}"
            fi
        fi
        
        PDF_FILES+=("$pdf")
    done

# 方式3: 查找基础目录下所有 PDF
else
    echo -e "${YELLOW}在基础目录中查找所有 PDF 文件${NC}"
    
    # 使用 find 命令查找所有 .pdf 文件
    while IFS= read -r -d $'\0' file; do
        PDF_FILES+=("$file")
    done < <(find "${BASE_DIR}" -type f -name "*.pdf" -print0 | sort -z)
fi

# 检查是否找到 PDF 文件
if [[ ${#PDF_FILES[@]} -eq 0 ]]; then
    echo -e "${RED}错误: 未找到任何 PDF 文件${NC}"
    exit 1
fi

echo -e "${GREEN}找到 ${#PDF_FILES[@]} 个 PDF 文件:${NC}"
for i in "${!PDF_FILES[@]}"; do
    echo -e "  ${BLUE}[$((i+1))]${NC} ${PDF_FILES[$i]}"
done
echo ""

# ============================================================================
# 确认执行
# ============================================================================
read -p "$(echo -e ${YELLOW}"是否继续处理? [Y/n]: "${NC})" confirm
confirm=${confirm:-Y}
if [[ ! "$confirm" =~ ^[Yy]$ ]]; then
    echo -e "${YELLOW}已取消处理${NC}"
    exit 0
fi
echo ""

# ============================================================================
# 处理 PDF 文件
# ============================================================================
success_count=0
failed_count=0
skipped_count=0
declare -a failed_files

echo -e "${BLUE}==============================================================================${NC}"
echo -e "${BLUE}开始批量处理${NC}"
echo -e "${BLUE}==============================================================================${NC}"
echo ""

start_time=$(date +%s)

for i in "${!PDF_FILES[@]}"; do
    pdf_file="${PDF_FILES[$i]}"
    current=$((i+1))
    total=${#PDF_FILES[@]}
    
    echo -e "${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
    echo -e "${BLUE}[${current}/${total}] 处理: ${pdf_file}${NC}"
    echo -e "${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
    
    # 检查文件是否存在
    if [[ ! -f "$pdf_file" ]]; then
        echo -e "${RED}⚠ 跳过: 文件不存在${NC}"
        ((skipped_count++))
        echo ""
        continue
    fi
    
    # 确定输出目录
    pdf_dir=$(dirname "$pdf_file")
    output_dir="${pdf_dir}/${OUTPUT_SUBDIR}"
    
    # 显示处理信息
    echo -e "${GREEN}📄 输入文件:${NC} $pdf_file"
    echo -e "${GREEN}📁 输出目录:${NC} $output_dir"
    echo -e "${GREEN}🌐 API 地址:${NC} $API_URL"
    echo ""
    
    # 创建输出目录
    # mkdir -p "$output_dir"
    
    # 执行处理
    echo -e "${YELLOW}开始处理...${NC}"
    
    file_start_time=$(date +%s)
    
    if python "${SCRIPT}" \
        --input_file "$pdf_file" \
        --output_dir "$output_dir" \
        --api_url "$API_URL" \
        --timeout "$TIMEOUT"; then
        
        file_end_time=$(date +%s)
        file_duration=$((file_end_time - file_start_time))
        
        echo -e "${GREEN}✓ 成功${NC} (耗时: ${file_duration}秒)"
        ((success_count++))
    else
        file_end_time=$(date +%s)
        file_duration=$((file_end_time - file_start_time))
        
        echo -e "${RED}✗ 失败${NC} (耗时: ${file_duration}秒)"
        ((failed_count++))
        failed_files+=("$pdf_file")
    fi
    
    echo ""
done

end_time=$(date +%s)
total_duration=$((end_time - start_time))

# ============================================================================
# 输出统计信息
# ============================================================================
echo -e "${BLUE}==============================================================================${NC}"
echo -e "${BLUE}处理完成${NC}"
echo -e "${BLUE}==============================================================================${NC}"
echo ""
echo -e "${GREEN}📊 统计信息:${NC}"
echo -e "  总文件数: ${total}"
echo -e "  ${GREEN}✓ 成功: ${success_count}${NC}"
echo -e "  ${RED}✗ 失败: ${failed_count}${NC}"
echo -e "  ${YELLOW}⊘ 跳过: ${skipped_count}${NC}"
echo -e "  ⏱️  总耗时: ${total_duration} 秒 ($(date -u -r $total_duration +%H:%M:%S))"
echo ""

# 显示失败的文件
if [[ ${failed_count} -gt 0 ]]; then
    echo -e "${RED}失败的文件:${NC}"
    for file in "${failed_files[@]}"; do
        echo -e "  ${RED}✗${NC} $file"
    done
    echo ""
fi

# 生成日志文件
log_file="batch_process_$(date +%Y%m%d_%H%M%S).log"
{
    echo "批量处理日志"
    echo "============================================"
    echo "开始时间: $(date -r $start_time)"
    echo "结束时间: $(date -r $end_time)"
    echo "总耗时: ${total_duration} 秒"
    echo ""
    echo "统计信息:"
    echo "  总文件数: ${total}"
    echo "  成功: ${success_count}"
    echo "  失败: ${failed_count}"
    echo "  跳过: ${skipped_count}"
    echo ""
    if [[ ${failed_count} -gt 0 ]]; then
        echo "失败的文件:"
        for file in "${failed_files[@]}"; do
            echo "  - $file"
        done
    fi
} > "$log_file"

echo -e "${GREEN}📝 日志已保存: ${log_file}${NC}"
echo ""

# 退出码
if [[ ${failed_count} -gt 0 ]]; then
    exit 1
else
    exit 0
fi