Last active
June 19, 2018 08:07
-
-
Save gaspard/738e5e81a8171ac0b62c5f64f77e6756 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import * as cerebral from 'cerebral' | |
interface BlockDefinition<State, Sequences> { | |
state: any | |
sequences: any | |
} | |
interface Builder<State, Sequences> { | |
state: State | |
sequences: Sequences | |
root: () => cerebral.ModuleClass | |
with<St, Se>( | |
block: BlockDefinition<St, Se> | |
): Builder<State & St, Sequences & Se> | |
} | |
function build<St, Se>(obj: BlockDefinition<St, Se>): Builder<St, Se> { | |
const allState = cerebral.state as {} | |
const allSequences = cerebral.sequences as {} | |
const blocks: Array<any> = [] | |
function root() { | |
// return the rootModule | |
return cerebral.Module({}) | |
} | |
// Add a block to the app | |
function addBlock<AllSt, AllSe, St, Se>(obj: BlockDefinition<St, Se>) { | |
// Fake TS types | |
const state = allState as AllSt & St | |
const sequences = allSequences as AllSe & Se | |
// Register the new block | |
blocks.push(obj) | |
// Return the root module builder and tag helpers. | |
return { | |
state, | |
sequences, | |
root, | |
with<X, Y>(o: BlockDefinition<X, Y>) { | |
return addBlock<AllSt & St, AllSe & Se, X, Y>(o) | |
}, | |
} | |
} | |
// Add the first block | |
return addBlock(obj) | |
} | |
// ========== app block | |
interface AppState { | |
app: { | |
user: string | |
} | |
} | |
interface AppSequences { | |
setName(args: { name: string }): void | |
} | |
const app: BlockDefinition<AppState, AppSequences> = { | |
state: {}, | |
sequences: {}, | |
} | |
// ========== dialog block | |
interface DialogState { | |
dialog: { | |
currentDialog: string | |
} | |
} | |
interface DialogSequences { | |
showDialog(args: { dialog: string }): void | |
} | |
const dialog: BlockDefinition<DialogState, DialogSequences> = { | |
state: {}, | |
sequences: {}, | |
} | |
// ========== boot block | |
interface BootState { | |
boot: { | |
phase: string | |
} | |
} | |
interface BootSequences { | |
reboot(args: {}): void | |
} | |
const boot: BlockDefinition<BootState, BootSequences> = { | |
state: {}, | |
sequences: {}, | |
} | |
const { state, sequences, root } = build(app) | |
.with(dialog) | |
.with(boot) | |
// root is the rootModule | |
const foo = connect({ user: state.app.user }, /* ... */) // <== Types are correct. |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment