import { describe, expect, test } from 'bun:test';
import { listClaudeCodeModels } from './list-models';

/**
 * The Claude tier list, and the one property the rest of the system depends on: the id survives the split.
 *
 * `claude-manager` derives what it hands the SDK with `params.model?.split('/')[1]`, so a bracketed alias
 * only works if the id has exactly one `/` and the brackets come through untouched. That is easy to break
 * by "tidying" an id into `claude-code/opus/1m` or url-encoding the brackets, and it would fail as the
 * harness silently running the wrong model rather than as an error — the same class of silent mismatch the
 * mid-conversation switch work existed to remove.
 */
const ids = () => listClaudeCodeModels().map((m) => m.id);

describe('claude-code tiers', () => {
  test('every alias the installed CLI accepts is offered', () => {
    // Read out of the CLI binary rather than recalled — see the note in list-models.ts. `mythos` is
    // deliberately excluded (Project Glasswing only), so its absence is part of the claim.
    expect(ids()).toEqual([
      'claude-code/fable',
      'claude-code/fable[1m]',
      'claude-code/opus',
      'claude-code/opus[1m]',
      'claude-code/opusplan',
      'claude-code/opusplan[1m]',
      'claude-code/sonnet',
      'claude-code/sonnet[1m]',
      'claude-code/haiku',
    ]);
  });

  test('the alias survives `split("/")[1]` with its brackets intact', () => {
    for (const id of ids()) {
      const parts = id.split('/');
      expect(parts).toHaveLength(2);
      expect(parts[1]).not.toContain('%');
    }
    expect('claude-code/opus[1m]'.split('/')[1]).toBe('opus[1m]');
  });

  test('a 1M variant declares a 1M window, and nothing else does', () => {
    for (const model of listClaudeCodeModels()) {
      expect(model.contextWindow).toBe(model.id.endsWith('[1m]') ? 1_000_000 : 200_000);
    }
  });

  test('every tier is routed to the Claude sidecar', () => {
    // `isClaudeModel` is a `startsWith` on the harness prefix; an id that misses it silently dispatches to
    // OpenCode, which is the wrong-harness bug the model-switch guard refuses at runtime.
    for (const id of ids()) expect(id.startsWith('claude-code')).toBe(true);
  });
});