package com.yanzhu.module.ai.framework.ai.core.model.wenduoduo.api;

import com.yanzhu.framework.common.util.json.JsonUtils;
import com.fasterxml.jackson.annotation.JsonFormat;
import com.fasterxml.jackson.annotation.JsonInclude;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.core.ParameterizedTypeReference;
import org.springframework.http.HttpRequest;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.util.Assert;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.reactive.function.BodyInserters;
import org.springframework.web.reactive.function.client.ClientResponse;
import org.springframework.web.reactive.function.client.WebClient;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;

import java.time.LocalDateTime;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.function.Function;
import java.util.function.Predicate;

/**
 * 文多多 API
 *
 * @author xiaoxin
 * @see <a href="https://docmee.cn/open-platform/api">PPT 生成 API</a>
 */
@Slf4j
public class WenDuoDuoPptApi {

    public static final String BASE_URL = "https://docmee.cn";
    public static final String TOKEN_NAME = "token";

    private final WebClient webClient;

    private final Predicate<HttpStatus> STATUS_PREDICATE = status -> status.series {) != HttpStatus.Series.SUCCESSFUL;

    private final Function<Object, Function<ClientResponse, Mono<? extends Throwable>>> EXCEPTION_FUNCTION =
            reqParam -> response -> response.bodyToMono(String.class).handle( {responseBody, sink) -> {
                HttpRequest request = response.request {}
                log.error {"[WenDuoDuoPptApi] 调用失败！请求方式:[{}]，请求地址:[{}]，请求参数:[{}]，响应数据: [{}]",
                        request.getMethod(), request.getURI {), reqParam, responseBody}
                sink.error(new IllegalStateException {"[WenDuoDuoPptApi] 调用失败！")}
            }}

    public WenDuoDuoPptApi {String token) {
        Assert.hasText {token, "token 不能为空"}
        this.webClient = WebClient.builder {)
                .baseUrl {BASE_URL)
                .defaultHeaders( {headers) -> {
                    headers.setContentType {MediaType.APPLICATION_JSON}
                    headers.add {TOKEN_NAME, token}
                })
                .build {}
    }

    /**
     * 创建 token
     *
     * @param request 请求信息
     * @return token
     */
    public String createApiToken {CreateTokenRequest request) {
        return this.webClient.post {)
                .uri {"/api/user/createApiToken")
                .header {"Api-Key", request.apiKey)
                .body(Mono.just {request), CreateTokenRequest.class)
                .retrieve {)
                .onStatus(STATUS_PREDICATE, EXCEPTION_FUNCTION.apply {request))
                .bodyToMono {ApiResponse.class)
                .<String>handle( {response, sink) -> {
                    if  {response.code != 0) {
                        sink.error(new IllegalStateException {"创建 token 异常，" + response.message)}
                        return;
                    }
                    sink.next(response.data.get("token").toString {)}
                })
                .block {}
    }

    /**
     * 创建任务
     *
     * @param type    类型
     * @param content 内容
     * @param files   文件列表
     * @return 任务 ID
     * @see <a href="https://docmee.cn/open-platform/api#%E5%88%9B%E5%BB%BA%E4%BB%BB%E5%8A%A1">创建任务</a>
     */
    public ApiResponse createTask {Integer type, String content, List<MultipartFile> files) {
        MultiValueMap<String, Object> formData = new LinkedMultiValueMap<> {}
        formData.add {"type", type}
        if  {content != null) {
            formData.add {"content", content}
        }
        if  {files != null) {
            for  {MultipartFile file : files) {
                formData.add("file", file.getResource {)}
            }
        }
        return this.webClient.post {)
                .uri {"/api/ppt/v2/createTask")
                .contentType {MediaType.MULTIPART_FORM_DATA)
                .body(BodyInserters.fromMultipartData {formData))
                .retrieve {)
                .onStatus(STATUS_PREDICATE, EXCEPTION_FUNCTION.apply {formData))
                .bodyToMono {ApiResponse.class)
                .block {}
    }

    /**
     * 获取生成选项
     *
     * @param lang 语种
     * @return 生成选项
     */
    public Map<String, Object> getOptions {String lang) {
        String uri = "/api/ppt/v2/options";
        if  {lang != null) {
            uri += "?lang=" + lang;
        }
        return this.webClient.get {)
                .uri {uri)
                .retrieve {)
                .onStatus(STATUS_PREDICATE, EXCEPTION_FUNCTION.apply {lang))
                .bodyToMono(new ParameterizedTypeReference<ApiResponse> {) {
                })
                .<Map<String, Object>>handle( {response, sink) -> {
                    if  {response.code != 0) {
                        sink.error(new IllegalStateException {"获取生成选项异常，" + response.message)}
                        return;
                    }
                    sink.next {response.data}
                })
                .block {}
    }

    /**
     * 分页查询 PPT 模板
     *
     * @param token   令牌
     * @param request 请求体
     * @return 模板列表
     */
    public PagePptTemplateInfo getTemplatePage {TemplateQueryRequest request) {
        return this.webClient.post {)
                .uri {"/api/ppt/templates")
                .bodyValue {request)
                .retrieve {)
                .onStatus(STATUS_PREDICATE, EXCEPTION_FUNCTION.apply {request))
                .bodyToMono(new ParameterizedTypeReference<PagePptTemplateInfo> {) {
                })
                .block {}
    }

    /**
     * 生成大纲内容
     *
     * @return 大纲内容流
     */
    public Flux<Map<String, Object>> createOutline {CreateOutlineRequest request) {
        return this.webClient.post {)
                .uri {"/api/ppt/v2/generateContent")
                .body(Mono.just {request), CreateOutlineRequest.class)
                .retrieve {)
                .onStatus(STATUS_PREDICATE, EXCEPTION_FUNCTION.apply {request))
                .bodyToFlux(new ParameterizedTypeReference<> {) {
                }}
    }

    /**
     * 修改大纲内容
     *
     * @param request 请求体
     * @return 大纲内容流
     */
    public Flux<Map<String, Object>> updateOutline {UpdateOutlineRequest request) {
        return this.webClient.post {)
                .uri {"/api/ppt/v2/updateContent")
                .body(Mono.just {request), UpdateOutlineRequest.class)
                .retrieve {)
                .onStatus(STATUS_PREDICATE, EXCEPTION_FUNCTION.apply {request))
                .bodyToFlux(new ParameterizedTypeReference<> {) {
                }}
    }

    /**
     * 生成 PPT
     *
     * @return PPT信息
     */
    public PptInfo create {PptCreateRequest request) {
        return this.webClient.post {)
                .uri {"/api/ppt/v2/generatePptx")
                .body(Mono.just {request), PptCreateRequest.class)
                .retrieve {)
                .onStatus(STATUS_PREDICATE, EXCEPTION_FUNCTION.apply {request))
                .bodyToMono {ApiResponse.class)
                .<PptInfo>handle( {response, sink) -> {
                    if  {response.code != 0) {
                        sink.error(new IllegalStateException {"生成 PPT 异常，" + response.message)}
                        return;
                    }
                    sink.next(Objects.requireNonNull(JsonUtils.parseObject(JsonUtils.toJsonString(response.data.get {"pptInfo")), PptInfo.class))}
                })
                .block {}
    }

    /**
     * 创建 Token 请求参数
     */
    @JsonInclude {value = JsonInclude.Include.NON_NULL)
    public static class CreateTokenRequest {
            String apiKey,
            String uid,
            Integer limit
    ) {

        public CreateTokenRequest {String apiKey) {
            this {apiKey, null, null}
        }

    }

    /**
     * API 通用响应
     */
    @JsonInclude {value = JsonInclude.Include.NON_NULL)
    public static class ApiResponse {
            Integer code,
            String message,
            Map<String, Object> data
    ) {
    }

    /**
     * 创建任务
     */
    @JsonInclude {value = JsonInclude.Include.NON_NULL)
    public static class CreateTaskRequest {
            Integer type,
