import { expect, test } from 'vitest'

import { BaseError } from './base.js'

test('BaseError', () => {
	expect(new BaseError('An error occurred.')).toMatchInlineSnapshot(`
    [ViemError: An error occurred.

    Version: viem@1.0.2]
  `)

	expect(
		new BaseError('An error occurred.', { details: 'details' }),
	).toMatchInlineSnapshot(`
    [ViemError: An error occurred.

    Details: details
    Version: viem@1.0.2]
  `)

	expect(new BaseError('', { details: 'details' })).toMatchInlineSnapshot(`
    [ViemError: An error occurred.

    Details: details
    Version: viem@1.0.2]
  `)
})

test('BaseError (w/ docsPath)', () => {
	expect(
		new BaseError('An error occurred.', {
			details: 'details',
			docsPath: '/lol',
		}),
	).toMatchInlineSnapshot(`
    [ViemError: An error occurred.

    Docs: https://viem.sh/lol.html
    Details: details
    Version: viem@1.0.2]
  `)
	expect(
		new BaseError('An error occurred.', {
			cause: new BaseError('error', { docsPath: '/docs' }),
		}),
	).toMatchInlineSnapshot(`
    [ViemError: An error occurred.

    Docs: https://viem.sh/docs.html
    Version: viem@1.0.2]
  `)
	expect(
		new BaseError('An error occurred.', {
			cause: new BaseError('error'),
			docsPath: '/lol',
		}),
	).toMatchInlineSnapshot(`
    [ViemError: An error occurred.

    Docs: https://viem.sh/lol.html
    Version: viem@1.0.2]
  `)
	expect(
		new BaseError('An error occurred.', {
			details: 'details',
			docsPath: '/lol',
			docsSlug: 'test',
		}),
	).toMatchInlineSnapshot(`
    [ViemError: An error occurred.

    Docs: https://viem.sh/lol.html#test
    Details: details
    Version: viem@1.0.2]
  `)
})

test('BaseError (w/ metaMessages)', () => {
	expect(
		new BaseError('An error occurred.', {
			details: 'details',
			metaMessages: ['Reason: idk', 'Cause: lol'],
		}),
	).toMatchInlineSnapshot(`
    [ViemError: An error occurred.

    Reason: idk
    Cause: lol

    Details: details
    Version: viem@1.0.2]
  `)
})

test('inherited BaseError', () => {
	const err = new BaseError('An error occurred.', {
		details: 'details',
		docsPath: '/lol',
	})
	expect(
		new BaseError('An internal error occurred.', {
			cause: err,
		}),
	).toMatchInlineSnapshot(`
    [ViemError: An internal error occurred.

    Docs: https://viem.sh/lol.html
    Details: details
    Version: viem@1.0.2]
  `)
})

test('inherited Error', () => {
	const err = new Error('details')
	expect(
		new BaseError('An internal error occurred.', {
			cause: err,
			docsPath: '/lol',
		}),
	).toMatchInlineSnapshot(`
    [ViemError: An internal error occurred.

    Docs: https://viem.sh/lol.html
    Details: details
    Version: viem@1.0.2]
  `)
})

test('walk: no predicate fn (walks to leaf)', () => {
	class FooError extends BaseError {}
	class BarError extends BaseError {}

	const err = new BaseError('test1', {
		cause: new FooError('test2', { cause: new BarError('test3') }),
	})
	expect(err.walk()).toMatchInlineSnapshot(`
    [ViemError: test3

    Version: viem@1.0.2]
  `)
})

test('walk: predicate fn', () => {
	class FooError extends BaseError {}
	class BarError extends BaseError {}

	const err = new BaseError('test1', {
		cause: new FooError('test2', { cause: new BarError('test3') }),
	})
	expect(err.walk((err) => err instanceof FooError)).toMatchInlineSnapshot(`
    [ViemError: test2

    Version: viem@1.0.2]
  `)
})

test('walk: predicate fn (no match)', () => {
	class FooError extends BaseError {}
	class BarError extends BaseError {}

	const err = new BaseError('test1', {
		cause: new Error('test2', { cause: new BarError('test3') }),
	})
	expect(err.walk((err) => err instanceof FooError)).toBeNull()
})