import type { CollectionConfig } from "payload";
import fs from "fs";
import path from "path";
import { fileURLToPath } from "url";

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

export const ContextFiles: CollectionConfig = {
  slug: "context-files",
  labels: {
    singular: "Context File",
    plural: "Context Files",
  },
  admin: {
    useAsTitle: "filename",
    defaultColumns: ["filename", "updatedAt"],
  },
  access: {
    read: () => true, // Needed for server actions to fetch context
    create: () => true,
    update: () => true,
    delete: () => true,
  },
  hooks: {
    afterChange: [
      ({ doc, operation }) => {
        // Potential future: sync back to disk?
        // For now, let's keep it simple as a CMS-first feature.
      },
    ],
  },
  fields: [
    {
      name: "filename",
      type: "text",
      required: true,
      unique: true,
      admin: {
        description:
          "Exact filename (e.g. 'strategy.md'). The system uses this to identify the document during prompt generation.",
      },
    },
    {
      name: "content",
      type: "textarea",
      required: true,
      admin: {
        rows: 25,
        description: "The raw markdown/text content of the document.",
        style: { fontFamily: "monospace" },
      },
    },
  ],
};