package com.labelsys.backend.controller;

import com.labelsys.backend.common.Result;
import com.labelsys.backend.context.UserContext;
import com.labelsys.backend.dto.common.PageResult;
import com.labelsys.backend.dto.request.SaveImageBboxRequest;
import com.labelsys.backend.dto.request.SourceResourcePageQuery;
import com.labelsys.backend.dto.request.SourceUploadRequest;
import com.labelsys.backend.dto.response.ImageBboxResponse;
import com.labelsys.backend.dto.response.SourceResourceResponse;
import com.labelsys.backend.dto.response.SourceUploadResponse;
import com.labelsys.backend.entity.SourceResource;
import com.labelsys.backend.service.SourceResourceService;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.Parameter;
import io.swagger.v3.oas.annotations.tags.Tag;
import jakarta.validation.Valid;
import lombok.RequiredArgsConstructor;
import org.springdoc.core.annotations.ParameterObject;
import org.springframework.http.HttpHeaders;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@Tag(name = "资源管理")
@RestController
@RequestMapping("/api/source-resources")
@RequiredArgsConstructor
public class SourceResourceController {

    private final SourceResourceService sourceResourceService;

    @Operation(summary = "上传资源")
    @PostMapping("/upload")
    public Result<SourceUploadResponse> upload(@ParameterObject @ModelAttribute SourceUploadRequest request) {
        return Result.success(sourceResourceService.upload(UserContext.requireUser(), request));
    }

    @Operation(summary = "分页查询资源")
    @GetMapping
    public Result<PageResult<SourceResourceResponse>> page(
            @ParameterObject @ModelAttribute SourceResourcePageQuery query) {
        return Result.success(sourceResourceService.pageResources(UserContext.requireUser(), query));
    }

    @Operation(summary = "查询资源详情")
    @GetMapping("/{id}")
    public Result<SourceResourceResponse> detail(
            @Parameter(description = "资源ID", example = "191000000000000101")
            @PathVariable Long id
    ) {
        return Result.success(sourceResourceService.getResource(UserContext.requireUser(), id));
    }

    @Operation(summary = "删除资源")
    @DeleteMapping("/{id}")
    public Result<Void> delete(
            @Parameter(description = "资源ID", example = "191000000000000101")
            @PathVariable Long id
    ) {
        sourceResourceService.deleteResource(UserContext.requireUser(), id);
        return Result.success();
    }

    @Operation(summary = "下载图片资源")
    @GetMapping("/{id}/download")
    public ResponseEntity<byte[]> downloadImage(
            @Parameter(description = "资源ID", example = "191000000000000101")
            @PathVariable Long id
    ) {
        var currentUser = UserContext.requireUser();
        byte[] imageData = sourceResourceService.downloadImage(currentUser, id);

        // 获取资源信息以确定Content-Type
        SourceResource resource = sourceResourceService.getResourceEntity(id);
        String contentType = sourceResourceService.getImageContentType(resource);

        return ResponseEntity.ok()
                .header(HttpHeaders.CONTENT_TYPE, contentType)
                .header(HttpHeaders.CONTENT_DISPOSITION, "inline; filename=\"" + resource.getResourceName() + "\"")
                .body(imageData);
    }

    // 添加新接口
    @Operation(summary = "查询图片资源BBOX标注")
    @GetMapping("/{id}/bbox")
    public Result<ImageBboxResponse> getImageBbox(
            @Parameter(description = "资源ID", example = "191000000000000101")
            @PathVariable Long id
    ) {
        return Result.success(sourceResourceService.getImageBbox(UserContext.requireUser(), id));
    }

    @Operation(summary = "保存图片资源BBOX标注")
    @PostMapping("/{id}/bbox")
    public Result<ImageBboxResponse> saveImageBbox(
            @Parameter(description = "资源ID", example = "191000000000000101")
            @PathVariable Long id,
            @Valid @RequestBody SaveImageBboxRequest request
    ) {
        return Result.success(sourceResourceService.saveImageBbox(UserContext.requireUser(), id, request));
    }

    @Operation(summary = "删除图片资源BBOX标注")
    @DeleteMapping("/{id}/bbox")
    public Result<Void> deleteImageBbox(
            @Parameter(description = "资源ID", example = "191000000000000101")
            @PathVariable Long id
    ) {
        sourceResourceService.deleteImageBbox(UserContext.requireUser(), id);
        return Result.success();
    }
}