import {EditorFormDefinition, EditorFormTabs, EditorSelectFormFieldDefinition} from "../../framework/forms";
import {EditorUiContext} from "../../framework/core";
import {$createTextNode, $getSelection} from "lexical";
import {$createImageNode} from "../../../nodes/image";
import {$createLinkNode} from "@lexical/link";
import {$createMediaNodeFromHtml, $createMediaNodeFromSrc, $isMediaNode, MediaNode} from "../../../nodes/media";
import {$insertNodeToNearestRoot} from "@lexical/utils";
import {$getNodeFromSelection} from "../../../utils/selection";

export const image: EditorFormDefinition = {
    submitText: 'Apply',
    async action(formData, context: EditorUiContext) {
        context.editor.update(() => {
            const selection = $getSelection();
            const imageNode = $createImageNode(formData.get('src')?.toString() || '', {
                alt: formData.get('alt')?.toString() || '',
                height: Number(formData.get('height')?.toString() || '0'),
                width: Number(formData.get('width')?.toString() || '0'),
            });
            selection?.insertNodes([imageNode]);
        });
        return true;
    },
    fields: [
        {
            label: 'Source',
            name: 'src',
            type: 'text',
        },
        {
            label: 'Alternative description',
            name: 'alt',
            type: 'text',
        },
        {
            label: 'Width',
            name: 'width',
            type: 'text',
        },
        {
            label: 'Height',
            name: 'height',
            type: 'text',
        },
    ],
};

export const link: EditorFormDefinition = {
    submitText: 'Apply',
    async action(formData, context: EditorUiContext) {
        context.editor.update(() => {

            const selection = $getSelection();

            const linkNode = $createLinkNode(formData.get('url')?.toString() || '', {
                title: formData.get('title')?.toString() || '',
                target: formData.get('target')?.toString() || '',
            });
            linkNode.append($createTextNode(formData.get('text')?.toString() || ''));

            selection?.insertNodes([linkNode]);
        });
        return true;
    },
    fields: [
        {
            label: 'URL',
            name: 'url',
            type: 'text',
        },
        {
            label: 'Text to display',
            name: 'text',
            type: 'text',
        },
        {
            label: 'Title',
            name: 'title',
            type: 'text',
        },
        {
            label: 'Open link in...',
            name: 'target',
            type: 'select',
            valuesByLabel: {
                'Current window': '',
                'New window': '_blank',
            }
        } as EditorSelectFormFieldDefinition,
    ],
};

export const media: EditorFormDefinition = {
    submitText: 'Save',
    async action(formData, context: EditorUiContext) {
        const selectedNode: MediaNode|null = await (new Promise((res, rej) => {
            context.editor.getEditorState().read(() => {
                const node = $getNodeFromSelection($getSelection(), $isMediaNode);
                res(node as MediaNode|null);
            });
        }));

        const embedCode = (formData.get('embed') || '').toString().trim();
        if (embedCode) {
            context.editor.update(() => {
                const node = $createMediaNodeFromHtml(embedCode);
                if (selectedNode && node) {
                    selectedNode.replace(node)
                } else if (node) {
                    $insertNodeToNearestRoot(node);
                }
            });

            return true;
        }

        context.editor.update(() => {
            const src = (formData.get('src') || '').toString().trim();
            const height = (formData.get('height') || '').toString().trim();
            const width = (formData.get('width') || '').toString().trim();

            const updateNode = selectedNode || $createMediaNodeFromSrc(src);
            updateNode.setSrc(src);
            updateNode.setWidthAndHeight(width, height);
            if (!selectedNode) {
                $insertNodeToNearestRoot(updateNode);
            }
        });

        return true;
    },
    fields: [
        {
            build() {
                return new EditorFormTabs([
                    {
                        label: 'General',
                        contents: [
                            {
                                label: 'Source',
                                name: 'src',
                                type: 'text',
                            },
                            {
                                label: 'Width',
                                name: 'width',
                                type: 'text',
                            },
                            {
                                label: 'Height',
                                name: 'height',
                                type: 'text',
                            },
                        ],
                    },
                    {
                        label: 'Embed',
                        contents: [
                            {
                                label: 'Paste your embed code below:',
                                name: 'embed',
                                type: 'textarea',
                            },
                        ],
                    }
                ])
            }
        },
    ],
};