import { Node, mergeAttributes } from '@tiptap/core';
import { render } from 'solid-js/web';
import { JobFileSelector } from '@/components/JobFileSelector';

export interface FileViewerOptions {
    HTMLAttributes: Record<string, any>;
}

declare module '@tiptap/core' {
    interface Commands<ReturnType> {
        fileViewer: {
            insertFileViewer: (options?: { src?: string }) => ReturnType;
        };
    }
}

export const FileViewer = Node.create<FileViewerOptions>({
    name: 'fileViewer',

    group: 'block',

    selectable: true,

    draggable: true,

    addOptions() {
        return {
            HTMLAttributes: {
                class: 'file-viewer-node group relative',
            },
        };
    },

    addAttributes() {
        return {
            jobId: {
                default: null,
                parseHTML: element => element.getAttribute('data-job-id'),
                renderHTML: attributes => {
                    if (!attributes.jobId) return {};
                    return { 'data-job-id': attributes.jobId };
                },
            },
            collectionId: {
                default: 'Job_Info_Prod',
                parseHTML: element => element.getAttribute('data-collection-id') || 'Job_Info_Prod',
                renderHTML: attributes => {
                    return { 'data-collection-id': attributes.collectionId || 'Job_Info_Prod' };
                },
            },
            filename: {
                default: null,
                parseHTML: element => element.getAttribute('data-filename'),
                renderHTML: attributes => {
                    if (!attributes.filename) return {};
                    return { 'data-filename': attributes.filename };
                },
            },
        };
    },

    parseHTML() {
        return [
            {
                tag: 'div[data-type="file-viewer-wrapper"]',
            }
        ];
    },

    renderHTML({ HTMLAttributes }) {
        const { jobId, collectionId, filename, ...rest } = HTMLAttributes;
        let src = '';
        if (jobId && filename) {
            src = `https://pocketbase.ccllc.pro/api/files/${collectionId}/${jobId}/${filename}`;
        }
        return ['div', mergeAttributes(this.options.HTMLAttributes, rest, { 'data-type': 'file-viewer-wrapper', class: 'file-viewer-wrapper relative w-full my-4 rounded-xl overflow-hidden border border-border flex min-h-[500px] bg-muted/20' }),
            ['iframe', { 'data-type': 'file-viewer', src: src, class: 'w-full h-full border-0 absolute inset-0' }]
        ];
    },

    addNodeView() {
        return ({ node, getPos, editor }) => {
            const wrapper = document.createElement('div');
            wrapper.classList.add('file-viewer-wrapper', 'relative', 'w-full', 'my-4', 'rounded-xl', 'overflow-hidden', 'border', 'border-border', 'flex', 'bg-muted/10', 'group');

            const hasFile = node.attrs.jobId && node.attrs.filename;

            if (hasFile) {
                // Viewer mode
                wrapper.style.minHeight = '500px';

                const iframe = document.createElement('iframe');
                iframe.src = `https://pocketbase.ccllc.pro/api/files/${node.attrs.collectionId}/${node.attrs.jobId}/${node.attrs.filename}`;
                iframe.classList.add('w-full', 'h-full', 'border-0', 'absolute', 'inset-0');

                // Delete button overlay
                const overlay = document.createElement('div');
                overlay.classList.add('absolute', 'top-2', 'left-2', 'flex', '[@media(hover:hover)]:hidden', '[@media(hover:hover)]:group-hover:flex', 'bg-background/80', 'backdrop-blur-sm', 'p-1', 'rounded-lg', 'border', 'border-border', 'shadow-sm', 'z-10');

                const deleteBtn = document.createElement('button');
                deleteBtn.innerHTML = '<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="text-muted-foreground hover:text-destructive transition-colors"><path d="M3 6h18"></path><path d="M19 6v14c0 1-1 2-2 2H7c-1 0-2-1-2-2V6"></path><path d="M8 6V4c0-1 1-2 2-2h4c1 0 2 1 2 2v2"></path></svg>';
                deleteBtn.classList.add('p-1', 'cursor-pointer');
                deleteBtn.onclick = (e) => {
                    e.preventDefault();
                    if (typeof getPos === 'function') {
                        const pos = getPos();
                        if (typeof pos === 'number') {
                            editor.commands.deleteRange({ from: pos, to: pos + node.nodeSize });
                        }
                    }
                };

                overlay.appendChild(deleteBtn);
                wrapper.appendChild(iframe);
                wrapper.appendChild(overlay);

                return {
                    dom: wrapper,
                    stopEvent: () => true,
                    ignoreMutation: () => true,
                };
            } else {
                render(() => JobFileSelector({
                    onSelectFile: (jobId: string, filename: string) => {
                        if (typeof getPos === 'function') {
                            editor.commands.command(({ tr }) => {
                                const pos = getPos();
                                if (typeof pos === 'number') {
                                    tr.setNodeMarkup(pos, undefined, { jobId, collectionId: 'Job_Info_Prod', filename });
                                    return true;
                                }
                                return false;
                            });
                        }
                    }
                }), wrapper);

                return {
                    dom: wrapper,
                    stopEvent: () => true,
                    ignoreMutation: () => true,
                };
            }
        };
    },

    addCommands() {
        return {
            insertFileViewer: (options?: { src?: string }) => ({ commands }) => {
                return commands.insertContent({
                    type: this.name,
                    attrs: options || {},
                });
            },
        };
    },
});