<template>
    <div :class="{ fullscreen: fullscreen }" class="tinymce-container" :style="{ width: containerWidth }">
        <textarea :id="tinymceId" class="tinymce-textarea" />
        <div class="editor-custom-btn-container">
            <editorImage color="#1890ff" class="editor-upload-btn" @successCBK="imageSuccessCBK" />
        </div>
    </div>
</template>

<script>
/**
 * docs:
 * https://panjiachen.github.io/vue-element-admin-site/feature/component/rich-editor.html#tinymce
 */
import editorImage from './components/EditorImage';
import plugins from './plugins';
import toolbar from './toolbar';
import load from './dynamicLoadScript';

// why use this cdn, detail see https://github.com/PanJiaChen/tinymce-all-in-one
const tinymceCDN = 'https://cdn.jsdelivr.net/npm/tinymce-all-in-one@4.9.3/tinymce.min.js';

export default {
    name: 'Tinymce',
    components: { editorImage },
    props: {
        id: {
            type: String,
            default: function () {
                return 'vue-tinymce-' + +new Date() + ((Math.random() * 1000).toFixed(0) + '');
            }
        },
        value: {
            type: String,
            default: ''
        },
        toolbar: {
            type: Array,
            required: false,
            default() {
                return [];
            }
        },
        menubar: {
            type: String,
            default: 'file edit insert view format table'
        },
        height: {
            type: [Number, String],
            required: false,
            default: 360
        },
        width: {
            type: [Number, String],
            required: false,
            default: '500'
        }
    },
    data() {
        return {
            hasChange: false,
            hasInit: false,
            tinymceId: this.id,
            fullscreen: false,
            languageTypeList: {
                en: 'en',
                zh: 'zh_CN',
                es: 'es_MX',
                ja: 'ja'
            }
        };
    },
    computed: {
        language() {
            return this.languageTypeList[this.$store.getters.language];
        },
        containerWidth() {
            const width = this.width;
            if (/^[\d]+(\.[\d]+)?$/.test(width)) {
                // matches `100`, `'100'`
                return `${width}px`;
            }
            return width;
        }
    },
    watch: {
        value(val) {
            if (!this.hasChange && this.hasInit) {
                this.$nextTick(() => window.tinymce.get(this.tinymceId).setContent(val || ''));
            }
        },
        language() {
            this.destroyTinymce();
            this.$nextTick(() => this.initTinymce());
        }
    },
    mounted() {
        this.init();
    },
    activated() {
        if (window.tinymce) {
            this.initTinymce();
        }
    },
    deactivated() {
        this.destroyTinymce();
    },
    destroyed() {
        this.destroyTinymce();
    },
    methods: {
        init() {
            // dynamic load tinymce from cdn
            load(tinymceCDN, (err) => {
                if (err) {
                    this.$message.error(err.message);
                    return;
                }
                this.initTinymce();
            });
        },
        initTinymce() {
            const _this = this;
            window.tinymce.init({
                language: 'zh_CN',
                selector: `#${this.tinymceId}`,
                height: this.height,
                branding: false, //去掉底部文本
                body_class: 'panel-body ',
                object_resizing: false,
                toolbar: this.toolbar.length > 0 ? this.toolbar : toolbar,
                menubar: this.menubar,
                plugins: plugins,
                end_container_on_empty_block: true,
                powerpaste_word_import: 'clean',
                code_dialog_height: 450,
                code_dialog_width: 1000,
                advlist_bullet_styles: 'square',
                advlist_number_styles: 'default',
                imagetools_cors_hosts: ['www.tinymce.com', 'codepen.io'],
                default_link_target: '_blank',
                link_title: false,
                nonbreaking_force_tab: true, // inserting nonbreaking space &nbsp; need Nonbreaking Space Plugin
                init_instance_callback: (editor) => {
                    if (_this.value) {
                        editor.setContent(_this.value);
                    }
                    _this.hasInit = true;
                    editor.on('NodeChange Change KeyUp SetContent', () => {
                        this.hasChange = true;
                        this.$emit('input', editor.getContent());
                    });
                },
                setup(editor) {
                    editor.on('FullscreenStateChanged', (e) => {
                        _this.fullscreen = e.state;
                    });
                },
                // it will try to keep these URLs intact
                // https://www.tiny.cloud/docs-3x/reference/configuration/Configuration3x@convert_urls/
                // https://stackoverflow.com/questions/5196205/disable-tinymce-absolute-to-relative-url-conversions
                convert_urls: false
                // 整合七牛上传
                // images_dataimg_filter(img) {
                //   setTimeout(() => {
                //     const $image = $(img);
                //     $image.removeAttr('width');
                //     $image.removeAttr('height');
                //     if ($image[0].height && $image[0].width) {
                //       $image.attr('data-wscntype', 'image');
                //       $image.attr('data-wscnh', $image[0].height);
                //       $image.attr('data-wscnw', $image[0].width);
                //       $image.addClass('wscnph');
                //     }
                //   }, 0);
                //   return img
                // },
                // images_upload_handler(blobInfo, success, failure, progress) {
                //   progress(0);
                //   const token = _this.$store.getters.token;
                //   getToken(token).then(response => {
                //     const url = response.data.qiniu_url;
                //     const formData = new FormData();
                //     formData.append('token', response.data.qiniu_token);
                //     formData.append('key', response.data.qiniu_key);
                //     formData.append('file', blobInfo.blob(), url);
                //     upload(formData).then(() => {
                //       success(url);
                //       progress(100);
                //     })
                //   }).catch(err => {
                //     failure('出现未知问题，刷新页面，或者联系程序员')
                //     console.log(err);
                //   });
                // },
            });
        },
        destroyTinymce() {
            const tinymce = window.tinymce.get(this.tinymceId);
            if (this.fullscreen) {
                tinymce.execCommand('mceFullScreen');
            }

            if (tinymce) {
                tinymce.destroy();
            }
        },
        setContent(value) {
            window.tinymce.get(this.tinymceId).setContent(value);
        },
        getContent() {
            window.tinymce.get(this.tinymceId).getContent();
        },
        imageSuccessCBK(arr) {
            arr.forEach((v) => window.tinymce.get(this.tinymceId).insertContent(`<img class="wscnph" src="${v.url}" >`));
        }
    }
};
</script>

<style lang="scss" scoped>
.tinymce-container {
    position: relative;
    line-height: normal;
}

.tinymce-container {
    ::v-deep {
        .mce-fullscreen {
            z-index: 10000;
        }
    }
}

.tinymce-textarea {
    visibility: hidden;
    z-index: -1;
}

.editor-custom-btn-container {
    position: absolute;
    right: 4px;
    top: 4px;
    /*z-index: 2005;*/
}

.fullscreen .editor-custom-btn-container {
    z-index: 10000;
    position: fixed;
}

.editor-upload-btn {
    display: inline-block;
}

::v-deep #mceu_28-body {
    display: none !important;
}
</style>
