<script lang="ts">
    import type { CropendResult, Cropper } from './typing'

    import { defineComponent, ref } from 'vue'
    import CropperImage from './Cropper.vue'
    import { Avatar, Space, Tooltip, Upload } from 'ant-design-vue'
    import { useDesign } from '/@/hooks/web/useDesign'
    import { BasicModal, useModalInner } from '/@/components/Modal'
    import { dataURLtoBlob } from '/@/utils/file/base64Conver'
    import { isFunction } from '/@/utils/is'
    import { useI18n } from '/@/hooks/web/useI18n'

    interface apiFunParams {
        file: Blob
        name: string
        filename: string
    }

    const props = {
        circled: { type: Boolean, default: true },
        uploadApi: {
            type: Function as PropType<(params: apiFunParams) => Promise<any>>,
        },
    }

    export default defineComponent({
        name: 'CropperModal',
        components: { BasicModal, Space, CropperImage, Upload, Avatar, Tooltip },
        props,
        emits: ['uploadSuccess', 'register'],
        setup(props, { emit }) {
            let filename = ''
            const src = ref('')
            const previewSource = ref('')
            const cropper = ref<Cropper>()
            let scaleX = 1
            let scaleY = 1

            const { prefixCls } = useDesign('cropper-am')
            const [register, { closeModal, setModalProps }] = useModalInner()
            const { t } = useI18n()

            // Block upload
            function handleBeforeUpload(file: File) {
                const reader = new FileReader()
                reader.readAsDataURL(file)
                src.value = ''
                previewSource.value = ''
                reader.onload = function (e) {
                    src.value = (e.target?.result as string) ?? ''
                    filename = file.name
                }
                return false
            }

            function handleCropend({ imgBase64 }: CropendResult) {
                previewSource.value = imgBase64
            }

            function handleReady(cropperInstance: Cropper) {
                cropper.value = cropperInstance
            }

            function handlerToolbar(event: string, arg?: number) {
                if (event === 'scaleX') {
                    scaleX = arg = scaleX === -1 ? 1 : -1
                }
                if (event === 'scaleY') {
                    scaleY = arg = scaleY === -1 ? 1 : -1
                }
                cropper?.value?.[event]?.(arg)
            }

            async function handleOk() {
                const uploadApi = props.uploadApi
                if (uploadApi && isFunction(uploadApi)) {
                    const blob = dataURLtoBlob(previewSource.value)
                    try {
                        setModalProps({ confirmLoading: true })
                        const result = await uploadApi({ name: 'file', file: blob, filename })
                        emit('uploadSuccess', { source: previewSource.value, data: result.data })
                        closeModal()
                    } finally {
                        setModalProps({ confirmLoading: false })
                    }
                }
            }

            return {
                t,
                prefixCls,
                src,
                register,
                previewSource,
                handleBeforeUpload,
                handleCropend,
                handleReady,
                handlerToolbar,
                handleOk,
            }
        },
    })
</script>

<template>
    <BasicModal
        v-bind="$attrs"
        @register="register"
        :title="t('component.cropper.modalTitle')"
        width="800px"
        :canFullscreen="false"
        @ok="handleOk"
        :okText="t('component.cropper.okText')"
    >
        <div :class="prefixCls">
            <div :class="`${prefixCls}-left`">
                <div :class="`${prefixCls}-cropper`">
                    <CropperImage
                        v-if="src"
                        :src="src"
                        height="300px"
                        :circled="circled"
                        @cropend="handleCropend"
                        @ready="handleReady"
                    />
                </div>

                <div :class="`${prefixCls}-toolbar`">
                    <Upload :fileList="[]" accept="image/*" :beforeUpload="handleBeforeUpload">
                        <Tooltip :title="t('component.cropper.selectImage')" placement="bottom">
                            <a-button size="small" preIcon="ant-design:upload-outlined" type="primary" />
                        </Tooltip>
                    </Upload>
                    <Space>
                        <Tooltip :title="t('component.cropper.btn_reset')" placement="bottom">
                            <a-button
                                type="primary"
                                preIcon="ant-design:reload-outlined"
                                size="small"
                                :disabled="!src"
                                @click="handlerToolbar('reset')"
                            />
                        </Tooltip>
                        <Tooltip :title="t('component.cropper.btn_rotate_left')" placement="bottom">
                            <a-button
                                type="primary"
                                preIcon="ant-design:rotate-left-outlined"
                                size="small"
                                :disabled="!src"
                                @click="handlerToolbar('rotate', -45)"
                            />
                        </Tooltip>
                        <Tooltip :title="t('component.cropper.btn_rotate_right')" placement="bottom">
                            <a-button
                                type="primary"
                                preIcon="ant-design:rotate-right-outlined"
                                size="small"
                                :disabled="!src"
                                @click="handlerToolbar('rotate', 45)"
                            />
                        </Tooltip>
                        <Tooltip :title="t('component.cropper.btn_scale_x')" placement="bottom">
                            <a-button
                                type="primary"
                                preIcon="vaadin:arrows-long-h"
                                size="small"
                                :disabled="!src"
                                @click="handlerToolbar('scaleX')"
                            />
                        </Tooltip>
                        <Tooltip :title="t('component.cropper.btn_scale_y')" placement="bottom">
                            <a-button
                                type="primary"
                                preIcon="vaadin:arrows-long-v"
                                size="small"
                                :disabled="!src"
                                @click="handlerToolbar('scaleY')"
                            />
                        </Tooltip>
                        <Tooltip :title="t('component.cropper.btn_zoom_in')" placement="bottom">
                            <a-button
                                type="primary"
                                preIcon="ant-design:zoom-in-outlined"
                                size="small"
                                :disabled="!src"
                                @click="handlerToolbar('zoom', 0.1)"
                            />
                        </Tooltip>
                        <Tooltip :title="t('component.cropper.btn_zoom_out')" placement="bottom">
                            <a-button
                                type="primary"
                                preIcon="ant-design:zoom-out-outlined"
                                size="small"
                                :disabled="!src"
                                @click="handlerToolbar('zoom', -0.1)"
                            />
                        </Tooltip>
                    </Space>
                </div>
            </div>
            <div :class="`${prefixCls}-right`">
                <div :class="`${prefixCls}-preview`">
                    <img :src="previewSource" v-if="previewSource" :alt="t('component.cropper.preview')" />
                </div>
                <template v-if="previewSource">
                    <div :class="`${prefixCls}-group`">
                        <Avatar :src="previewSource" size="large" />
                        <Avatar :src="previewSource" :size="48" />
                        <Avatar :src="previewSource" :size="64" />
                        <Avatar :src="previewSource" :size="80" />
                    </div>
                </template>
            </div>
        </div>
    </BasicModal>
</template>

<style lang="less">
    @prefix-cls: ~'@{namespace}-cropper-am';

    .@{prefix-cls} {
        display: flex;

        &-left,
        &-right {
            height: 340px;
        }

        &-left {
            width: 55%;
        }

        &-right {
            width: 45%;
        }

        &-cropper {
            height: 300px;
            background: #eee;
            background-image: linear-gradient(
                    45deg,
                    rgb(0 0 0 / 25%) 25%,
                    transparent 0,
                    transparent 75%,
                    rgb(0 0 0 / 25%) 0
                ),
                linear-gradient(45deg, rgb(0 0 0 / 25%) 25%, transparent 0, transparent 75%, rgb(0 0 0 / 25%) 0);
            background-position: 0 0, 12px 12px;
            background-size: 24px 24px;
        }

        &-toolbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 10px;
        }

        &-preview {
            width: 220px;
            height: 220px;
            margin: 0 auto;
            overflow: hidden;
            border: 1px solid @border-color-base;
            border-radius: 50%;

            img {
                width: 100%;
                height: 100%;
            }
        }

        &-group {
            display: flex;
            padding-top: 8px;
            margin-top: 8px;
            border-top: 1px solid @border-color-base;
            justify-content: space-around;
            align-items: center;
        }
    }
</style>
