package com.yj.earth.business.controller;

import com.yj.earth.common.util.ApiResponse;
import com.yj.earth.vo.CsvField;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.Parameter;
import io.swagger.v3.oas.annotations.tags.Tag;
import org.apache.commons.csv.CSVFormat;
import org.apache.commons.csv.CSVParser;
import org.apache.commons.csv.CSVRecord;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Tag(name = "CSV文件解析")
@RestController
@RequestMapping("/csv")
public class CsvController {
    @GetMapping("/parseCsv")
    @Operation(summary = "解析CSV文件")
    public ApiResponse parseCsv(@Parameter(description = "文件路径") @RequestParam String filePath) {
        Map<String, Object> response = new HashMap<>();
        List<CsvField> fieldList = new ArrayList<>();

        try {
            File file = new File(filePath);
            try (InputStreamReader reader = new InputStreamReader(new FileInputStream(file), "GBK");
                 CSVParser parser = new CSVParser(reader, CSVFormat.DEFAULT)) {
                // 遍历所有行（CSVRecord即一行数据）
                for (CSVRecord record : parser) {
                    // 确保每行至少有3列（A、B、C列）
                    if (record.size() >= 3) {
                        String label = record.get(1).trim();
                        String key = record.get(2).trim();
                        fieldList.add(new CsvField(key, label));
                    }
                }
            }
            return ApiResponse.success(fieldList);
        } catch (Exception e) {
            return ApiResponse.failure(e.getMessage());
        }
    }
}