<template>
    <el-upload
        :id="uuid"
        action="#"
        :multiple="true"
        :show-file-list="false"
        :http-request="handleHttpUpload"
        :before-upload="handleBeforeUpload"
        class="editor-img-uploader"
        accept=".jpeg,.jpg,.png,.gif"
    >
        <i ref="uploadRef" class="Plus editor-img-uploader"></i>
    </el-upload>

    <!-- 使用input 标签劫持原本视频上传事件，实现视频上传 -->
    <input
        type="file"
        accept="video/*"
        name="file"
        ref="uploadFileVideo"
        id="uploadFileVideo"
        @change="handleVideoUpload"
        style="width: 0; height: 0; cursor: pointer; opacity: 0"
    />
    <div class="editor">
        <QuillEditor
            id="editorId"
            ref="myQuillEditor"
            v-model:content="editorContent"
            contentType="html"
            @update:content="onContentChange"
            :options="options"
        />
    </div>
</template>

<script setup name="Editor">
import { QuillEditor, Quill } from "@vueup/vue-quill";
import "@vueup/vue-quill/dist/vue-quill.snow.css";
import { getCurrentInstance, reactive, ref, toRaw, computed, onMounted } from "vue";
import { generateUUID } from "@/utils";
import { h } from "@/utils/url";
import { routerObj } from "./utils.js";
import { titleConfig } from "./titleConfig.js";
import { uploadVideo, uploadImg } from "@/api/modules/upload";
import { ElNotification } from "element-plus";
//uploadImg
// 字体配置
let fontSizeStyle = Quill.import("attributors/style/size");
fontSizeStyle.whitelist = ["12px", "14px", "16px", "18px", "20px", "22px", "24px", "26px", "28px", "30px", "32px"];
Quill.register(fontSizeStyle, true);

// 引入插入图片标签自定义的类
import ImageBlot from "./quill-image";
import Video from "./quill-video";
const uuid = ref("id-" + generateUUID());
const $router = useRouter();
const routerValueName = $router.currentRoute.value.name;

const routerName = ref(routerObj[routerValueName]);

Quill.register(Video);
Quill.register(ImageBlot);

const { proxy } = getCurrentInstance();
const emit = defineEmits(["update:content", "handleRichTextContentChange"]);
const uploadFileVideo = ref(null);
const imageList = ref([]);
const imageListDb = ref([]);
const props = defineProps({
    /* 编辑器的内容 */
    content: {
        type: String,
        default: ""
    },
    /* 只读 */
    readOnly: {
        type: Boolean,
        default: false
    },
    // 上传文件大小限制(MB)
    fileSizeLimit: {
        type: Number,
        default: 10
    }
});
//值
const editorContent = computed({
    get: () => props.content,
    set: val => {
        console.log(val, "======value==========");
        emit("update:content", val);
    }
});
//富文本ref
const myQuillEditor = ref(null);
//富文本值
// const oldContent = ref("");
//富文本配置项
const options = reactive({
    theme: "snow",
    debug: "warn",
    modules: {
        // 工具栏配置
        toolbar: {
            container: [
                ["bold", "italic", "underline", "strike"], // 加粗 斜体 下划线 删除线
                ["blockquote", "code-block"], // 引用  代码块
                [{ list: "ordered" }, { list: "bullet" }], // 有序、无序列表
                [{ indent: "-1" }, { indent: "+1" }], // 缩进
                [{ size: fontSizeStyle.whitelist }], // 字体大小
                [{ header: [1, 2, 3, 4, 5, 6, false] }], // 标题
                [{ color: [] }, { background: [] }], // 字体颜色、字体背景颜色
                [{ align: [] }], // 对齐方式
                ["clean"], // 清除文本格式
                ["link", "image", "video"] // 链接、图片、视频
            ],
            handlers: {
                // 重写图片上传事件
                image: function (value) {
                    if (value) {
                        //调用图片上传
                        proxy.$refs.uploadRef.click();
                    } else {
                        Quill.format("image", true);
                    }
                },
                video: function (value) {
                    if (value) {
                        // 劫持原来的视频点击按钮事件
                        document.querySelector("#uploadFileVideo")?.click();
                    } else {
                        Quill.format("video", true);
                    }
                }
            }
        }
    },
    placeholder: "请输入内容...",
    readOnly: props.readOnly,
    clipboard: {
        matchers: [
            [
                "img",
                (node, delta) => {
                    const src = node.getAttribute("src");
                    const id = node.getAttribute("id");
                    delta.insert({ image: { src, id: id } });
                }
            ]
        ]
    }
});
// 对 imageListDb 按文件名末尾数字排序（从小到大）
const sortImageListByNumber = () => {
    imageListDb.value.sort((a, b) => {
        // 提取文件名中的数字（匹配末尾的 -数字 格式）
        const getNumber = fileName => {
            // 正则匹配：以 - 开头，后面跟数字，且在文件名末尾（\d+$ 表示数字结尾）
            const match = fileName.match(/-(\d+)$/);
            // 若匹配到数字则返回，否则返回 0（避免无数字的文件排序出错）
            return match ? parseInt(match[1], 10) : 0;
        };

        // 分别获取 a 和 b 文件名中的数字
        const numA = getNumber(a.name);
        const numB = getNumber(b.name);

        // 按数字从小到大排序（numA - numB 为升序）
        return numA - numB;
    });
};
// 上传前的钩子
const handleBeforeUpload = file => {
    const fileType = file.type;
    // 为文件添加唯一标识
    file.customUid = generateUUID(); // 确保有唯一ID
    imageListDb.value.push(file);
    sortImageListByNumber();
    // 图片和视频格式校验
    const validTypes = [
        "image/jpeg",
        "image/png",
        "image/gif",
        "image/jpg",
        "image/bmp",
        "image/webp",
        "video/mov",
        "video/ts",
        "video/mp4",
        "video/avi"
    ];

    if (validTypes.includes(fileType)) {
        // 校检文件大小
        const isLt = file.size / 1024 / 1024 < props.fileSizeLimit;
        if (!isLt) {
            ElNotification({
                title: "温馨提示",
                message: `上传文件大小不能超过 ${props.fileSizeLimit} MB!`,
                type: "warning"
            });

            imageListDb.value = [];
            return false;
        }
        return true;
    } else {
        ElNotification({
            title: "温馨提示",
            message: `文件格式不正确！`,
            type: "warning"
        });
        imageListDb.value = [];
        return false;
    }
};

// 图片上传
const handleHttpUpload = async options => {
    let formData = new FormData();
    formData.append("image", options.file);
    imageList.value.push(options.file);
    try {
        const result = await uploadImg(formData, routerName.value, options.file.customUid);
        // 假设服务器返回格式为 { imgId: 'xxx', data: { code: 0, data: { path: 'xxx' } } }
        const { imgId } = result;

        if (result?.data?.code === 0) {
            const { data } = result?.data;

            // 1. 通过customUid查找对应的文件对象
            const fileItem = imageListDb.value.find(item => item.customUid === imgId);
            if (fileItem) {
                fileItem.serverImgId = imgId; // 保存服务器返回的imgId
                fileItem.path = data.path; // 保存图片路径
                console.log(`成功为文件 ${fileItem.name} 设置路径: ${data.path}`);
            } else {
                console.error(`找不到对应的文件对象，customUid: ${options.file.customUid}`);
            }

            // 2. 检查是否所有文件都已上传完成
            const allFilesUploaded = imageListDb.value.every(item => item.path);
            if (allFilesUploaded) {
                console.log("所有文件上传完成，准备插入到富文本编辑器");

                // 获取富文本实例
                const rawMyQuillEditor = toRaw(myQuillEditor.value);
                const quill = rawMyQuillEditor.getQuill();

                // 按上传顺序插入图片
                imageListDb.value.forEach((item, index) => {
                    // 获取光标位置（每次插入后光标会移动）
                    const length = quill.getLength() - 1; // 文本末尾
                    quill.insertEmbed(length, "image", {
                        url: h + item.path,
                        id: item.serverImgId || generateUUID()
                    });

                    // 移动光标到插入后的位置
                    quill.setSelection(length + 1);

                    console.log(`已插入图片 ${index + 1}/${imageListDb.value.length}: ${item.name}`);
                });

                // 清空临时数组
                imageList.value = [];
                imageListDb.value = [];
                console.log("所有图片已插入富文本，数组已清空");
            }
        }
    } catch (error) {
        console.error("图片上传失败:", error);
    }
};

//视频上传
const handleVideoUpload = async evt => {
    if (evt.target.files.length === 0) {
        return;
    }
    const formData = new FormData();
    formData.append("video", evt.target.files[0]);
    try {
        let quill = toRaw(myQuillEditor.value).getQuill();
        // 获取光标位置
        let length = quill.selection.savedRange.index;
        const { data } = await uploadVideo(formData);
        quill.insertEmbed(length, "video", {
            url: h + data.path, //h + data.fileUrl, //
            id: generateUUID()
        });
        uploadFileVideo.value.value = "";
    } catch (error) {
        console.log(error);
    }
};

// 监听富文本内容变化，删除被服务器中被用户回车删除的图片
const onContentChange = content => {
    emit("handleRichTextContentChange", content);
};
// 增加hover工具栏有中文提示
const initTitle = () => {
    document.getElementsByClassName("ql-editor")[0].dataset.placeholder = "";
    for (let item of titleConfig.value) {
        let tip = document.querySelector(".ql-toolbar " + item.Choice);
        if (!tip) continue;
        tip.setAttribute("title", item.title);
    }
};
// 获取 Quill 实例并定义清空方法
const clearEditor = () => {
    const rawMyQuillEditor = toRaw(myQuillEditor.value);
    if (rawMyQuillEditor) {
        const quill = rawMyQuillEditor.getQuill();
        quill.setText(""); // 清空内容（会触发 v-model 同步）
        editorContent.value = ""; // 同步更新绑定的变量
    }
};
onMounted(() => {
    initTitle();
    // oldContent.value = props.content;
});
// 暴露方法给父组件
defineExpose({
    clearEditor
});
</script>
<style lang="scss">
@import "./index.scss";
</style>
