import type * as getGitHubInfo from '@changesets/get-github-info';
import parse from '@changesets/parse';
import type { ModCompWithPackage, NewChangesetWithCommit, VersionType } from '@changesets/types';
import { describe, expect, it, vi } from 'vitest';

import changelog from '../.changeset/changelog.js';

type GetGitHubInfo = typeof getGitHubInfo;

const data = {
  commit: 'a085003',
  pull: 1613,
  repo: 'hey-api/openapi-ts',
  user: 'someone',
};

vi.mock(
  '@changesets/get-github-info',
  (): GetGitHubInfo => ({
    async getInfo({ commit, repo }) {
      const { pull, user } = data;
      const links = {
        commit: `[\`${commit}\`](https://github.com/${repo}/commit/${commit})`,
        pull: `[#${pull}](https://github.com/${repo}/pull/${pull})`,
        user: `[@${user}](https://github.com/${user})`,
      };
      return {
        links,
        pull,
        user,
      };
    },
    async getInfoFromPullRequest({ pull, repo }) {
      const { commit, user } = data;
      const links = {
        commit: `[\`${commit}\`](https://github.com/${repo}/commit/${commit})`,
        pull: `[#${pull}](https://github.com/${repo}/pull/${pull})`,
        user: `[@${user}](https://github.com/${user})`,
      };
      return {
        commit,
        links,
        user,
      };
    },
  }),
);

const getChangeset = (
  content: string,
  commit: string | undefined,
): [NewChangesetWithCommit, VersionType, null | Record<string, any>] => [
  {
    ...parse(
      `---
pkg: "minor"
---

something
${content}
`,
    ),
    commit,
    id: 'some-id',
  },
  'minor',
  { repo: data.repo },
];

describe('changelog', () => {
  it('formats dependency release lines', async () => {
    const changesets: NewChangesetWithCommit[] = [
      {
        commit: 'abc123',
        id: 'fake-id',
        releases: [],
        summary: 'update deps',
      },
    ];
    const deps: ModCompWithPackage[] = [
      {
        changesets: ['fake-id'],
        dir: '/fake/path',
        name: '@hey-api/openapi-ts',
        newVersion: '0.0.2',
        oldVersion: '0.0.1',
        packageJson: {
          name: '@hey-api/openapi-ts',
          version: '0.0.1',
        },
        type: 'patch',
      },
    ];

    const line = await changelog.getDependencyReleaseLine(changesets, deps, {
      repo: 'org/repo',
    });

    expect(line).toEqual('### Updated Dependencies:\n  - @hey-api/openapi-ts@0.0.2');
  });

  it('formats regular release lines', async () => {
    const changeset: NewChangesetWithCommit = {
      commit: 'abc123',
      id: 'fake-id',
      releases: [],
      summary: 'Fixed bug in parser',
    };

    const line = await changelog.getReleaseLine(changeset, 'patch', {
      repo: 'org/repo',
    });

    expect(line).toContain('Fixed bug in parser');
    expect(line).toContain('abc123');
  });

  it('with multiple authors', async () => {
    expect(
      await changelog.getReleaseLine(
        ...getChangeset(['author: @one', 'author: @two'].join('\n'), data.commit),
      ),
    ).toEqual(
      `\n- something ([#1613](https://github.com/hey-api/openapi-ts/pull/1613)) ([\`a085003\`](https://github.com/hey-api/openapi-ts/commit/a085003)) by [@one](https://github.com/one), [@two](https://github.com/two)`,
    );
  });

  it('places metadata on the first line and preserves markdown code blocks', async () => {
    const summary = [
      'refactor(config): replace `off` with null to disable options',
      '',
      '### Updated `output` options',
      '',
      'We made the `output` configuration more consistent by using `null` to represent disabled options. [This change](https://heyapi.dev/openapi-ts/migrating#updated-output-options) does not affect boolean options.',
      '',
      '```js',
      'export default {',
      '  input: "hey-api/backend", // sign up at app.heyapi.dev',
      '  output: {',
      '    format: null,',
      '    lint: null,',
      '    path: "src/client",',
      '    tsConfigPath: null,',
      '  },',
      '};',
      '```',
    ].join('\n');
    const changeset = {
      commit: 'fcdd73b816d74babf47e6a1f46032f5b8ebb4b48',
      id: 'fake-id',
      releases: [],
      summary,
    };
    const line = await changelog.getReleaseLine(changeset, 'minor', {
      repo: 'hey-api/openapi-ts',
    });
    // Metadata should be on the first line
    expect(line).toMatch(
      /^\n- refactor\(config\): replace `off` with null to disable options \(\[#1613\]\(https:\/\/github.com\/hey-api\/openapi-ts\/pull\/1613\)\) \(\[`fcdd73b`\]\(https:\/\/github.com\/hey-api\/openapi-ts\/commit\/fcdd73b816d74babf47e6a1f46032f5b8ebb4b48\)\) by \[@someone\]\(https:\/\/github.com\/someone\)/,
    );
    // Should not contain quadruple backticks
    expect(line).not.toContain('````');
    // Should contain a markdown code block
    expect(line).toContain('```js\nexport default {');
    expect(line).toContain('  input: "hey-api/backend", // sign up at app.heyapi.dev');
    expect(line).toContain('  output: {');
    expect(line).toContain('    format: null,');
    expect(line).toContain('    lint: null,');
    expect(line).toContain('    path: "src/client",');
    expect(line).toContain('    tsConfigPath: null,');
    expect(line).toContain('  },');
    expect(line).toContain('};');
    expect(line).toContain('```');
  });

  it('converts multiple code blocks and preserves non-code content', async () => {
    const summary = [
      'feat: add foo',
      '',
      '```js',
      'console.log(1);',
      '```',
      '',
      'Some text.',
      '',
      '```ts',
      'console.log(2);',
      '```',
    ].join('\n');
    const changeset = {
      commit: 'abc123',
      id: 'fake-id',
      releases: [],
      summary,
    };
    const line = await changelog.getReleaseLine(changeset, 'minor', {
      repo: 'hey-api/openapi-ts',
    });
    expect(line).toContain('```js\nconsole.log(1);\n```');
    expect(line).toContain('```ts\nconsole.log(2);\n```');
    expect(line).toContain('Some text.');
  });

  describe.each(['author', 'user'])('override author with %s keyword', (keyword) => {
    it.each(['with @', 'without @'])('%s', async (kind) => {
      expect(
        await changelog.getReleaseLine(
          ...getChangeset(`${keyword}: ${kind === 'with @' ? '@' : ''}other`, data.commit),
        ),
      ).toEqual(
        `\n- something ([#1613](https://github.com/hey-api/openapi-ts/pull/1613)) ([\`a085003\`](https://github.com/hey-api/openapi-ts/commit/a085003)) by [@other](https://github.com/other)`,
      );
    });
  });

  describe.each([data.commit, 'wrongcommit', undefined])(
    'with commit from changeset of %s',
    (commitFromChangeset) => {
      describe.each(['pr', 'pull request', 'pull'])('override pr with %s keyword', (keyword) => {
        it.each(['with #', 'without #'])('%s', async (kind) => {
          expect(
            await changelog.getReleaseLine(
              ...getChangeset(
                `${keyword}: ${kind === 'with #' ? '#' : ''}${data.pull}`,
                commitFromChangeset,
              ),
            ),
          ).toEqual(
            `\n- something ([#1613](https://github.com/hey-api/openapi-ts/pull/1613)) ([\`a085003\`](https://github.com/hey-api/openapi-ts/commit/a085003)) by [@someone](https://github.com/someone)`,
          );
        });
      });

      it('override commit with commit keyword', async () => {
        expect(
          await changelog.getReleaseLine(
            ...getChangeset(`commit: ${data.commit}`, commitFromChangeset),
          ),
        ).toEqual(
          `\n- something ([#1613](https://github.com/hey-api/openapi-ts/pull/1613)) ([\`a085003\`](https://github.com/hey-api/openapi-ts/commit/a085003)) by [@someone](https://github.com/someone)`,
        );
      });
    },
  );
});