import type { PlimiPlugin } from "../../core/plugins/plugin-types";
import { runPdfWatermark } from "./run";
import { COLOR_PRESETS, MAX_WATERMARK_CHARS } from "./watermark";
import PdfWorker from "./worker?worker";

export interface PdfWatermarkOptions {
  text: string;
  orientation: "horizontal" | "vertical" | "diagonal";
  opacity: number;
  color: string;
}

export const pdfWatermarkPlugin: PlimiPlugin<PdfWatermarkOptions> = {
  manifest: {
    id: "pdf-watermark",
    name: "PDF Watermark",
    description:
      "Stamp custom text over every page of a PDF, entirely in your browser. The text auto-sizes to fit each page.",
    category: "pdf",
    version: "1.0.0",
    tags: ["pdf", "watermark", "stamp", "text"],
    input: {
      type: "files",
      accept: ["application/pdf"],
      multiple: false,
    },
    output: { type: "files" },
    offlineReady: true,
  },

  optionsSchema: {
    fields: [
      {
        type: "text",
        key: "text",
        label: `Watermark Text (max ${MAX_WATERMARK_CHARS} chars)`,
        defaultValue: "CONFIDENTIAL",
        placeholder: "e.g. CONFIDENTIAL",
      },
      {
        type: "select",
        key: "orientation",
        label: "Orientation",
        defaultValue: "diagonal",
        options: [
          { label: "Diagonal", value: "diagonal" },
          { label: "Horizontal", value: "horizontal" },
          { label: "Vertical", value: "vertical" },
        ],
      },
      {
        type: "slider",
        key: "opacity",
        label: "Opacity (%)",
        defaultValue: 30,
        min: 5,
        max: 100,
        step: 5,
      },
      {
        type: "select",
        key: "color",
        label: "Color",
        defaultValue: "light-grey",
        options: Object.entries(COLOR_PRESETS).map(([value, { label }]) => ({
          label,
          value,
        })),
      },
    ],
  },

  capabilities: {
    cancelable: true,
    worker: true,
  },

  run: runPdfWatermark,
  worker: () => new PdfWorker(),
};