package com.ruoyi.lsfx.controller;

import com.ruoyi.common.annotation.Anonymous;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.lsfx.client.CreditParseClient;
import com.ruoyi.lsfx.domain.response.CreditParseResponse;
import com.ruoyi.lsfx.exception.LsfxApiException;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.Parameter;
import io.swagger.v3.oas.annotations.tags.Tag;
import jakarta.annotation.Resource;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardCopyOption;

@Tag(name = "征信解析接口测试", description = "用于测试征信解析接口")
@Anonymous
@RestController
@RequestMapping("/lsfx/credit")
public class CreditParseController {

    private static final String DEFAULT_MODEL = "LXCUSTALL";
    private static final String DEFAULT_HTYPE = "PERSON";

    @Resource
    private CreditParseClient creditParseClient;

    @Operation(summary = "解析征信HTML", description = "上传征信HTML文件并调用外部解析服务")
    @PostMapping("/parse")
    public AjaxResult parse(@Parameter(description = "征信HTML文件") @RequestParam("file") MultipartFile file,
                            @Parameter(description = "解析模型，默认LXCUSTALL") @RequestParam(required = false) String model,
                            @Parameter(description = "主体类型，默认PERSON") @RequestParam(required = false) String hType) {
        if (file == null || file.isEmpty()) {
            return AjaxResult.error("征信HTML文件不能为空");
        }

        String originalFilename = file.getOriginalFilename();
        if (StringUtils.isBlank(originalFilename)) {
            return AjaxResult.error("文件名不能为空");
        }

        String lowerCaseName = originalFilename.toLowerCase();
        if (!lowerCaseName.endsWith(".html") && !lowerCaseName.endsWith(".htm")) {
            return AjaxResult.error("仅支持 HTML 格式文件");
        }

        String actualModel = StringUtils.isBlank(model) ? DEFAULT_MODEL : model;
        String actualHType = StringUtils.isBlank(hType) ? DEFAULT_HTYPE : hType;

        Path tempFile = null;
        try {
            String suffix = lowerCaseName.endsWith(".htm") ? ".htm" : ".html";
            tempFile = Files.createTempFile("credit_parse_", suffix);
            Files.copy(file.getInputStream(), tempFile, StandardCopyOption.REPLACE_EXISTING);

            File convertedFile = tempFile.toFile();
            CreditParseResponse response = creditParseClient.parse(actualModel, actualHType, convertedFile);
            return AjaxResult.success(response);
        } catch (LsfxApiException e) {
            return AjaxResult.error(e.getMessage());
        } catch (IOException e) {
            return AjaxResult.error("文件转换失败：" + e.getMessage());
        } catch (Exception e) {
            return AjaxResult.error("征信解析失败：" + e.getMessage());
        } finally {
            if (tempFile != null) {
                try {
                    Files.deleteIfExists(tempFile);
                } catch (IOException ignored) {
                    // 忽略临时文件删除失败，避免影响主流程返回
                }
            }
        }
    }
}