package com.talentcard.server.business.talent;

import java.util.Map;
import java.time.LocalDate;

import com.talentcard.server.business.PageResult;
import com.talentcard.server.business.admin.StatusUpdateRequest;
import com.talentcard.server.common.ApiResponse;
import jakarta.validation.Valid;
import org.springframework.http.HttpStatus;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PatchMapping;
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.RequestParam;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.format.annotation.DateTimeFormat;

@RestController
@RequestMapping("/api/talents")
public class TalentController {

	private final TalentService talentService;

	public TalentController(TalentService talentService) {
		this.talentService = talentService;
	}

	@PostMapping
	@ResponseStatus(HttpStatus.CREATED)
	public ApiResponse<Map<String, Object>> create(@Valid @RequestBody TalentCreateRequest request) {
		return ApiResponse.success(talentService.create(request));
	}

	@GetMapping
	public ApiResponse<PageResult<Map<String, Object>>> page(
			@RequestParam(required = false) String keyword,
			@RequestParam(required = false) String mobile,
			@RequestParam(required = false) String cardNo,
			@RequestParam(required = false) String level,
			@RequestParam(required = false) Integer status,
			@RequestParam(required = false) @DateTimeFormat(iso = DateTimeFormat.ISO.DATE) LocalDate registerStart,
			@RequestParam(required = false) @DateTimeFormat(iso = DateTimeFormat.ISO.DATE) LocalDate registerEnd,
			@RequestParam(defaultValue = "1") int page,
			@RequestParam(defaultValue = "10") int size
	) {
		return ApiResponse.success(talentService.page(keyword, mobile, cardNo, level, status, registerStart, registerEnd, page, size));
	}

	@GetMapping(value = "/export", produces = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
	public ResponseEntity<byte[]> export(
			@RequestParam(required = false) String keyword,
			@RequestParam(required = false) String mobile,
			@RequestParam(required = false) String cardNo,
			@RequestParam(required = false) String level,
			@RequestParam(required = false) Integer status,
			@RequestParam(required = false) @DateTimeFormat(iso = DateTimeFormat.ISO.DATE) LocalDate registerStart,
			@RequestParam(required = false) @DateTimeFormat(iso = DateTimeFormat.ISO.DATE) LocalDate registerEnd
	) {
		return ResponseEntity.ok()
				.header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=talents.xlsx")
				.contentType(MediaType.parseMediaType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"))
				.body(talentService.exportExcel(keyword, mobile, cardNo, level, status, registerStart, registerEnd));
	}

	@GetMapping(value = "/import-template", produces = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
	public ResponseEntity<byte[]> importTemplate() {
		return ResponseEntity.ok()
				.header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=talent-import-template.xlsx")
				.contentType(MediaType.parseMediaType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"))
				.body(talentService.importTemplate());
	}

	@GetMapping("/advisors")
	public ApiResponse<java.util.List<Map<String, Object>>> advisors() {
		return ApiResponse.success(talentService.availableAdvisors());
	}

	@GetMapping("/service-staff")
	public ApiResponse<java.util.List<Map<String, Object>>> serviceStaff() {
		return ApiResponse.success(talentService.availableServiceStaff());
	}

	@PostMapping(value = "/import", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
	public ApiResponse<Map<String, Object>> importExcel(@RequestParam("file") MultipartFile file) throws java.io.IOException {
		if (file.isEmpty() || file.getOriginalFilename() == null || !file.getOriginalFilename().toLowerCase().endsWith(".xlsx")) {
			throw new com.talentcard.server.common.BusinessException(
					com.talentcard.server.common.ErrorCode.BAD_REQUEST, "请选择有效的 .xlsx 文件");
		}
		return ApiResponse.success(talentService.importExcel(file.getInputStream()));
	}

	@GetMapping("/{id}")
	public ApiResponse<Map<String, Object>> detail(@PathVariable Long id) {
		return ApiResponse.success(talentService.detail(id));
	}

	@PatchMapping("/{id}/mobile")
	public ApiResponse<Map<String, Object>> updateMobile(
			@PathVariable Long id,
			@Valid @RequestBody TalentMobileUpdateRequest request
	) {
		return ApiResponse.success(talentService.updateMobile(id, request.mobile()));
	}

	@PatchMapping("/{id}/certification")
	public ApiResponse<Map<String, Object>> updateCertification(
			@PathVariable Long id,
			@Valid @RequestBody TalentCertificationUpdateRequest request
	) {
		return ApiResponse.success(talentService.updateCertification(id, request));
	}

	@PatchMapping("/{id}/card-level")
	public ApiResponse<Map<String, Object>> updateCardLevel(
			@PathVariable Long id,
			@Valid @RequestBody TalentLevelUpdateRequest request
	) {
		return ApiResponse.success(talentService.updateCardLevel(id, request.talentLevel()));
	}

	/**
	 * 游客升级为持卡人：补录认证信息 + 选等级 + 发卡。详情页里「升级人才」按钮走这条。
	 */
	@PostMapping("/{id}/upgrade")
	public ApiResponse<Map<String, Object>> upgrade(
			@PathVariable Long id,
			@Valid @RequestBody TalentUpgradeRequest request
	) {
		return ApiResponse.success(talentService.upgrade(id, request));
	}

	@PatchMapping("/{id}/advisor")
	public ApiResponse<Map<String, Object>> updateAdvisor(
			@PathVariable Long id,
			@RequestBody TalentAdvisorUpdateRequest request
	) {
		return ApiResponse.success(talentService.updateAdvisor(id, request.advisorId()));
	}

	@PatchMapping("/{id}/service-staff")
	public ApiResponse<Map<String, Object>> updateServiceStaff(
			@PathVariable Long id,
			@RequestBody TalentAdvisorUpdateRequest request
	) {
		return ApiResponse.success(talentService.updateServiceStaff(id, request.advisorId()));
	}

	@PatchMapping("/{id}/status")
	public ApiResponse<Map<String, Object>> updateStatus(
			@PathVariable Long id,
			@Valid @RequestBody StatusUpdateRequest request
	) {
		return ApiResponse.success(talentService.updateStatus(id, request.status()));
	}

	@GetMapping("/{id}/cards")
	public ApiResponse<PageResult<Map<String, Object>>> cards(
			@PathVariable Long id,
			@RequestParam(defaultValue = "1") int page,
			@RequestParam(defaultValue = "10") int size
	) {
		return ApiResponse.success(talentService.cards(id, page, size));
	}
}