/* global describe, it, expect */

/**
 * Internal dependencies
 */
import {
	SOURCE_POST,
	SOURCE_POST_AND_SCRIPT,
	LEGACY_SOURCE_SCRIPT,
	OUTPUT_AUDIO,
	OUTPUT_VIDEO,
	OUTPUT_AUDIO_AND_VIDEO,
	EMBED_NONE,
	EMBED_AUDIO_POST,
	EMBED_AUDIO_SCRIPT,
	EMBED_VIDEO_POST,
	EMBED_VIDEO_SCRIPT,
	PROJECT_DEFAULT_VALUE,
	STANDARD_MODEL_KEY,
	projectDefaultOption,
	voiceModelLabel,
	voiceModelKey,
	getLanguageModels,
	getSourceOptions,
	getOutputOptions,
	normalizeSource,
	sourceIncludesScript,
	outputIncludesAudio,
	outputIncludesVideo,
	getEmbedOptions,
	isEmbedValid,
	getDefaultEmbed,
} from './helpers';

describe( 'projectDefaultOption', () => {
	it( 'is an empty-valued option', () => {
		expect( projectDefaultOption() ).toEqual( {
			label: 'Project default',
			value: '',
		} );
		expect( PROJECT_DEFAULT_VALUE ).toBe( '' );
	} );
} );

describe( 'voiceModelLabel', () => {
	it( 'maps known ElevenLabs model slugs', () => {
		expect( voiceModelLabel( 'eleven_v3' ) ).toBe( 'v3' );
		expect( voiceModelLabel( 'eleven_multilingual_v2' ) ).toBe(
			'Multilingual v2'
		);
		expect( voiceModelLabel( 'eleven_flash_v2_5' ) ).toBe( 'Flash v2.5' );
		expect( voiceModelLabel( 'eleven_turbo_v2_5' ) ).toBe( 'Turbo v2.5' );
	} );

	it( 'title-cases unknown slugs and strips the eleven_ prefix', () => {
		expect( voiceModelLabel( 'eleven_something_new' ) ).toBe(
			'Something New'
		);
		expect( voiceModelLabel( 'custom_model' ) ).toBe( 'Custom Model' );
	} );
} );

describe( 'voiceModelKey', () => {
	it( 'keys ElevenLabs voices by model_id', () => {
		expect(
			voiceModelKey( { service: 'ElevenLabs', model_id: 'eleven_v3' } )
		).toBe( 'eleven_v3' );
	} );

	it( 'buckets non-ElevenLabs voices as Standard', () => {
		expect( voiceModelKey( { service: 'Azure', model_id: null } ) ).toBe(
			STANDARD_MODEL_KEY
		);
		expect( voiceModelKey( { name: 'Ada (Multilingual)' } ) ).toBe(
			STANDARD_MODEL_KEY
		);
	} );

	it( 'buckets ElevenLabs voices without a string model_id as Standard', () => {
		expect(
			voiceModelKey( { service: 'ElevenLabs', model_id: null } )
		).toBe( STANDARD_MODEL_KEY );
	} );
} );

describe( 'getLanguageModels', () => {
	// API order puts a non-default ElevenLabs model first, to prove the default
	// is pulled to the front while the rest keep their order, Standard last.
	const voices = [
		{
			id: 9001,
			name: 'Bridget',
			service: 'ElevenLabs',
			model_id: 'eleven_flash_v2_5',
		},
		{
			id: 9002,
			name: 'Bridget',
			service: 'ElevenLabs',
			model_id: 'eleven_multilingual_v2',
		},
		{
			id: 9003,
			name: 'Bridget',
			service: 'ElevenLabs',
			model_id: 'eleven_v3',
		},
		{ id: 3555, name: 'Ada (Multilingual)' },
	];

	it( 'lists the default model first, then the rest, Standard last', () => {
		expect( getLanguageModels( voices ).map( ( m ) => m.key ) ).toEqual( [
			'eleven_multilingual_v2',
			'eleven_flash_v2_5',
			'eleven_v3',
			STANDARD_MODEL_KEY,
		] );
	} );

	it( 'labels each model bucket', () => {
		expect( getLanguageModels( voices ).map( ( m ) => m.label ) ).toEqual( [
			'Multilingual v2',
			'Flash v2.5',
			'v3',
			'Legacy',
		] );
	} );

	it( 'omits the Standard bucket when no non-ElevenLabs voices exist', () => {
		expect(
			getLanguageModels( voices.slice( 0, 3 ) ).map( ( m ) => m.key )
		).toEqual( [
			'eleven_multilingual_v2',
			'eleven_flash_v2_5',
			'eleven_v3',
		] );
	} );

	it( 'returns a single Standard bucket for non-ElevenLabs voices only', () => {
		expect( getLanguageModels( [ { id: 1, name: 'Ada' } ] ) ).toEqual( [
			{ key: STANDARD_MODEL_KEY, label: 'Legacy' },
		] );
	} );

	it( 'handles an empty or missing voices list', () => {
		expect( getLanguageModels( [] ) ).toEqual( [] );
		expect( getLanguageModels( undefined ) ).toEqual( [] );
	} );
} );

describe( 'source/output predicates', () => {
	it( 'normalizeSource maps the removed script-only value to Post + script', () => {
		expect( normalizeSource( LEGACY_SOURCE_SCRIPT ) ).toBe(
			SOURCE_POST_AND_SCRIPT
		);
		expect( normalizeSource( SOURCE_POST_AND_SCRIPT ) ).toBe(
			SOURCE_POST_AND_SCRIPT
		);
	} );

	it( 'normalizeSource falls back to Post for unset and unknown values', () => {
		expect( normalizeSource( SOURCE_POST ) ).toBe( SOURCE_POST );
		expect( normalizeSource( '' ) ).toBe( SOURCE_POST );
		expect( normalizeSource( undefined ) ).toBe( SOURCE_POST );
		expect( normalizeSource( 'not-a-real-source' ) ).toBe( SOURCE_POST );
	} );

	it( 'sourceIncludesScript', () => {
		expect( sourceIncludesScript( SOURCE_POST_AND_SCRIPT ) ).toBe( true );
		expect( sourceIncludesScript( LEGACY_SOURCE_SCRIPT ) ).toBe( true );
		expect( sourceIncludesScript( SOURCE_POST ) ).toBe( false );
	} );

	it( 'outputIncludesAudio', () => {
		expect( outputIncludesAudio( OUTPUT_AUDIO ) ).toBe( true );
		expect( outputIncludesAudio( OUTPUT_AUDIO_AND_VIDEO ) ).toBe( true );
		expect( outputIncludesAudio( OUTPUT_VIDEO ) ).toBe( false );
	} );

	it( 'outputIncludesVideo', () => {
		expect( outputIncludesVideo( OUTPUT_VIDEO ) ).toBe( true );
		expect( outputIncludesVideo( OUTPUT_AUDIO_AND_VIDEO ) ).toBe( true );
		expect( outputIncludesVideo( OUTPUT_AUDIO ) ).toBe( false );
	} );

	it( 'getSourceOptions / getOutputOptions expose the expected values', () => {
		expect( getSourceOptions().map( ( o ) => o.value ) ).toEqual( [
			SOURCE_POST,
			SOURCE_POST_AND_SCRIPT,
		] );
		expect( getOutputOptions().map( ( o ) => o.value ) ).toEqual( [
			OUTPUT_AUDIO,
			OUTPUT_VIDEO,
			OUTPUT_AUDIO_AND_VIDEO,
		] );
	} );
} );

describe( 'getEmbedOptions', () => {
	const values = ( source, output ) =>
		getEmbedOptions( source, output ).map( ( o ) => o.value );

	it( 'Post + Audio → None / Audio (post)', () => {
		expect( values( SOURCE_POST, OUTPUT_AUDIO ) ).toEqual( [
			EMBED_NONE,
			EMBED_AUDIO_POST,
		] );
	} );

	it( 'Post + Script × Audio + Video → all four assets', () => {
		expect(
			values( SOURCE_POST_AND_SCRIPT, OUTPUT_AUDIO_AND_VIDEO )
		).toEqual( [
			EMBED_NONE,
			EMBED_AUDIO_POST,
			EMBED_AUDIO_SCRIPT,
			EMBED_VIDEO_POST,
			EMBED_VIDEO_SCRIPT,
		] );
	} );

	it( 'Post + script + Video → None / Video (post) / Video (script)', () => {
		expect( values( SOURCE_POST_AND_SCRIPT, OUTPUT_VIDEO ) ).toEqual( [
			EMBED_NONE,
			EMBED_VIDEO_POST,
			EMBED_VIDEO_SCRIPT,
		] );
	} );

	// Those posts have the post assets too, so hiding them was the v7 bug.
	it( 'the removed script-only value derives the Post + script options', () => {
		expect( values( LEGACY_SOURCE_SCRIPT, OUTPUT_AUDIO ) ).toEqual(
			values( SOURCE_POST_AND_SCRIPT, OUTPUT_AUDIO )
		);
	} );

	it( 'always includes None first', () => {
		expect( values( SOURCE_POST, OUTPUT_AUDIO )[ 0 ] ).toBe( EMBED_NONE );
	} );
} );

describe( 'isEmbedValid', () => {
	it( 'accepts an asset the source/output produces', () => {
		expect(
			isEmbedValid( EMBED_AUDIO_POST, SOURCE_POST, OUTPUT_AUDIO )
		).toBe( true );
	} );

	it( 'rejects an asset the source/output cannot produce', () => {
		expect(
			isEmbedValid( EMBED_VIDEO_SCRIPT, SOURCE_POST, OUTPUT_AUDIO )
		).toBe( false );
	} );

	it( 'always accepts None', () => {
		expect( isEmbedValid( EMBED_NONE, SOURCE_POST, OUTPUT_AUDIO ) ).toBe(
			true
		);
	} );
} );

describe( 'getDefaultEmbed', () => {
	it( 'returns the first asset for Post + Audio', () => {
		expect( getDefaultEmbed( SOURCE_POST, OUTPUT_AUDIO ) ).toBe(
			EMBED_AUDIO_POST
		);
	} );

	it( 'returns the first video asset for Post + Video', () => {
		expect( getDefaultEmbed( SOURCE_POST, OUTPUT_VIDEO ) ).toBe(
			EMBED_VIDEO_POST
		);
	} );

	it( 'returns a non-None value for every source/output combination', () => {
		[ SOURCE_POST, SOURCE_POST_AND_SCRIPT ].forEach( ( source ) => {
			[ OUTPUT_AUDIO, OUTPUT_VIDEO, OUTPUT_AUDIO_AND_VIDEO ].forEach(
				( output ) => {
					expect( getDefaultEmbed( source, output ) ).not.toBe(
						EMBED_NONE
					);
				}
			);
		} );
	} );
} );