diff options
Diffstat (limited to 'src/data/composite/things/track')
3 files changed, 108 insertions, 30 deletions
diff --git a/src/data/composite/things/track/index.js b/src/data/composite/things/track/index.js index cc723a24..8959de9f 100644 --- a/src/data/composite/things/track/index.js +++ b/src/data/composite/things/track/index.js @@ -9,3 +9,4 @@ export {default as withContainingTrackSection} from './withContainingTrackSectio export {default as withHasUniqueCoverArt} from './withHasUniqueCoverArt.js'; export {default as withOtherReleases} from './withOtherReleases.js'; export {default as withPropertyFromAlbum} from './withPropertyFromAlbum.js'; +export {default as withPropertyFromOriginalRelease} from './withPropertyFromOriginalRelease.js'; diff --git a/src/data/composite/things/track/inheritFromOriginalRelease.js b/src/data/composite/things/track/inheritFromOriginalRelease.js index 27ed1387..38ab06be 100644 --- a/src/data/composite/things/track/inheritFromOriginalRelease.js +++ b/src/data/composite/things/track/inheritFromOriginalRelease.js @@ -1,8 +1,6 @@ -// Early exits with a value inherited from the original release, if -// this track is a rerelease, and otherwise continues with no further -// dependencies provided. If allowOverride is true, then the continuation -// will also be called if the original release exposed the requested -// property as null. +// Early exits with the value for the same property as specified on the +// original release, if this track is a rerelease, and otherwise continues +// without providing any further dependencies. // // Like withOriginalRelease, this will early exit (with notFoundValue) if the // original release is specified by reference and that reference doesn't @@ -10,41 +8,34 @@ import {input, templateCompositeFrom} from '#composite'; -import withOriginalRelease from './withOriginalRelease.js'; +import {exposeDependency, raiseOutputWithoutDependency} + from '#composite/control-flow'; + +import withPropertyFromOriginalRelease + from './withPropertyFromOriginalRelease.js'; export default templateCompositeFrom({ annotation: `inheritFromOriginalRelease`, inputs: { - property: input({type: 'string'}), - allowOverride: input({type: 'boolean', defaultValue: false}), - notFoundValue: input({defaultValue: null}), + notFoundValue: input({ + defaultValue: null, + }), }, steps: () => [ - withOriginalRelease({ + withPropertyFromOriginalRelease({ + property: input.thisProperty(), notFoundValue: input('notFoundValue'), }), - { - dependencies: [ - '#originalRelease', - input('property'), - input('allowOverride'), - ], - - compute: (continuation, { - ['#originalRelease']: originalRelease, - [input('property')]: originalProperty, - [input('allowOverride')]: allowOverride, - }) => { - if (!originalRelease) return continuation(); - - const value = originalRelease[originalProperty]; - if (allowOverride && value === null) return continuation(); - - return continuation.exit(value); - }, - }, + raiseOutputWithoutDependency({ + dependency: '#isRerelease', + mode: input.value('falsy'), + }), + + exposeDependency({ + dependency: '#originalValue', + }), ], }); diff --git a/src/data/composite/things/track/withPropertyFromOriginalRelease.js b/src/data/composite/things/track/withPropertyFromOriginalRelease.js new file mode 100644 index 00000000..fd37f6de --- /dev/null +++ b/src/data/composite/things/track/withPropertyFromOriginalRelease.js @@ -0,0 +1,86 @@ +// Provides a value inherited from the original release, if applicable, and a +// flag indicating if this track is a rerelase or not. +// +// Like withOriginalRelease, this will early exit (with notFoundValue) if the +// original release is specified by reference and that reference doesn't +// resolve to anything. + +import {input, templateCompositeFrom} from '#composite'; + +import {withResultOfAvailabilityCheck} from '#composite/control-flow'; +import {withPropertyFromObject} from '#composite/data'; + +import withOriginalRelease from './withOriginalRelease.js'; + +export default templateCompositeFrom({ + annotation: `inheritFromOriginalRelease`, + + inputs: { + property: input({type: 'string'}), + + notFoundValue: input({ + defaultValue: null, + }), + }, + + outputs: ({ + [input.staticValue('property')]: property, + }) => + ['#isRerelease'].concat( + (property + ? ['#original.' + property] + : ['#originalValue'])), + + steps: () => [ + withOriginalRelease({ + notFoundValue: input('notFoundValue'), + }), + + withResultOfAvailabilityCheck({ + from: '#originalRelease', + }), + + { + dependencies: [ + '#availability', + input.staticValue('property'), + ], + + compute: (continuation, { + ['#availability']: availability, + [input.staticValue('property')]: property, + }) => + (availability + ? continuation() + : continuation.raiseOutput( + Object.assign( + {'#isRerelease': false}, + (property + ? {['#original.' + property]: null} + : {'#originalValue': null})))), + }, + + withPropertyFromObject({ + object: '#originalRelease', + property: input('property'), + }), + + { + dependencies: [ + '#value', + input.staticValue('property'), + ], + + compute: (continuation, { + ['#value']: value, + [input.staticValue('property')]: property, + }) => + continuation.raiseOutput( + Object.assign( + {'#isRerelease': true}, + (property + ? {['#original.' + property]: value} + : {'#originalValue': value}))), + }, + ], +}); |