import type { CallTemplateFunctionArgs, Context, PluginDefinition } from '@yaakapp/api';

export const plugin: PluginDefinition = {
  templateFunctions: [
    {
      name: 'base64.encode',
      description: 'Encode a value to base64',
      args: [
        {
          label: 'Encoding',
          type: 'select',
          name: 'encoding',
          defaultValue: 'base64',
          options: [
            {
              label: 'Base64',
              value: 'base64',
            },
            {
              label: 'Base64 URL-safe',
              value: 'base64url',
            },
          ],
        },
        { label: 'Plain Text', type: 'text', name: 'value', multiLine: true },
      ],
      async onRender(_ctx: Context, args: CallTemplateFunctionArgs): Promise<string | null> {
        return Buffer.from(String(args.values.value ?? '')).toString(
          args.values.encoding === 'base64url' ? 'base64url' : 'base64',
        );
      },
    },
    {
      name: 'base64.decode',
      description: 'Decode a value from base64',
      args: [{ label: 'Encoded Value', type: 'text', name: 'value', multiLine: true }],
      async onRender(_ctx: Context, args: CallTemplateFunctionArgs): Promise<string | null> {
        return Buffer.from(String(args.values.value ?? ''), 'base64').toString('utf-8');
      },
    },
    {
      name: 'url.encode',
      description: 'Encode a value for use in a URL (percent-encoding)',
      args: [{ label: 'Plain Text', type: 'text', name: 'value', multiLine: true }],
      async onRender(_ctx: Context, args: CallTemplateFunctionArgs): Promise<string | null> {
        return encodeURIComponent(String(args.values.value ?? ''));
      },
    },
    {
      name: 'url.decode',
      description: 'Decode a percent-encoded URL value',
      args: [{ label: 'Encoded Value', type: 'text', name: 'value', multiLine: true }],
      async onRender(_ctx: Context, args: CallTemplateFunctionArgs): Promise<string | null> {
        try {
          return decodeURIComponent(String(args.values.value ?? ''));
        } catch {
          return '';
        }
      },
    },
  ],
};