/**
 * Cursor model list parser — lifted from Paseo cursor-acp-agent.ts
 */
import type { ProviderModel } from './provider-types.js';

const CURSOR_MODEL_MARKER_PATTERN = /\s+\((?:default|current)\)$/;

export function parseCursorAgentModelsOutput(output: string): ProviderModel[] {
  const parsed = output
    .split(/\r?\n/)
    .map((line) => line.trim())
    .filter((line) => line && line !== 'Available models' && !line.startsWith('Tip:'))
    .map((line) => {
      const separatorIndex = line.indexOf(' - ');
      if (separatorIndex <= 0) return null;

      const id = line.slice(0, separatorIndex).trim();
      const rawLabel = line.slice(separatorIndex + 3).trim();
      if (!id || !rawLabel) return null;

      let marker: 'default' | 'current' | null = null;
      if (rawLabel.endsWith(' (default)')) marker = 'default';
      else if (rawLabel.endsWith(' (current)')) marker = 'current';

      return { id, label: rawLabel.replace(CURSOR_MODEL_MARKER_PATTERN, ''), marker };
    })
    .filter((m): m is { id: string; label: string; marker: 'default' | 'current' | null } => m !== null);

  const defaultModelId =
    parsed.find((m) => m.marker === 'default')?.id ??
    parsed.find((m) => m.marker === 'current')?.id ??
    parsed[0]?.id;

  return parsed.map((model) => ({
    id: model.id,
    label: model.label,
    isDefault: model.id === defaultModelId,
  }));
}