Created
December 27, 2018 14:04
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HOC Component for datx-jsonapi
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import { IModelConstructor, IType, PureModel, View } from 'datx'; | |
import { IJsonapiCollection, IJsonapiModel, IJsonapiView, IRequestOptions, jsonapi, Response } from 'datx-jsonapi'; | |
import { observable, set } from 'mobx'; | |
import * as React from 'react'; | |
import { IDictionary } from '../interfaces/IDictionary'; | |
const JsonapiView = jsonapi(View); | |
interface ILoaderDefinition { | |
model: IType | IModelConstructor<IJsonapiModel>; | |
reqOptions?: IRequestOptions; | |
options?: { | |
loadAll: boolean; | |
}; | |
} | |
type LoaderInfo = IType | IModelConstructor<IJsonapiModel> | ILoaderDefinition; | |
type LoadingProps = {loading: IDictionary<boolean>} & { | |
[key: string]: IJsonapiView; | |
}; | |
type OriginalComponent = typeof React.Component; | |
function getLoaderData(loader: LoaderInfo): ILoaderDefinition { | |
// @ts-ignore | |
if (typeof loader === 'string' || typeof loader === 'number' || loader.prototype instanceof PureModel) { | |
return { model: loader as IType | IModelConstructor<IJsonapiModel> }; | |
} | |
return loader as ILoaderDefinition; | |
} | |
async function loadAll(view: IJsonapiView, reqOptions?: IRequestOptions): Promise<Response<IJsonapiModel>> { | |
let response = await view.fetchPage(1, 1000, reqOptions); | |
while ( | |
response.pageInfo && | |
typeof response.pageInfo.currentPage === 'number' && | |
typeof response.pageInfo.totalPages === 'number' && | |
response.pageInfo.currentPage < response.pageInfo.totalPages && | |
response.next | |
) { | |
response = await response.next; | |
} | |
return response; | |
} | |
export function injectApi(loaders: IDictionary<LoaderInfo>): (Component: OriginalComponent) => any; | |
// tslint:disable-next-line:max-line-length | |
export function injectApi(stateProp: string, loaders: IDictionary<LoaderInfo>): (Component: OriginalComponent) => any; | |
// tslint:disable-next-line:max-line-length | |
export function injectApi(statePropArg: string | IDictionary<LoaderInfo>, loadersArg?: IDictionary<LoaderInfo>): (Component: OriginalComponent) => any { | |
const stateProp = typeof statePropArg === 'string' ? statePropArg : 'state'; | |
const loaders = typeof statePropArg === 'string' ? loadersArg as IDictionary<LoaderInfo> : statePropArg; | |
return <T, U>(Component: React.ComponentClass<T & LoadingProps, U>) => { | |
const loadingState: LoadingProps = observable({ | |
loading: {}, | |
}) as any; | |
return class InjectApiComponent extends React.Component<T, U> { | |
constructor(props: T) { | |
super(props); | |
const state = (props as any)[stateProp] as IJsonapiCollection; | |
Object.keys(loaders).forEach((loader) => { | |
const { model } = getLoaderData(loaders[loader]); | |
const loaderView = new JsonapiView(model, state); | |
set(loadingState, loader, loaderView); | |
set(loadingState.loading, loader, true); | |
}); | |
} | |
public componentDidMount() { | |
Object.keys(loaders).forEach((loader) => { | |
const { reqOptions, options } = getLoaderData(loaders[loader]); | |
set(loadingState.loading, loader, true); | |
const fetcher = options && options.loadAll | |
? loadAll(loadingState[loader], reqOptions) | |
: loadingState[loader].fetchPage(1, undefined, reqOptions); | |
fetcher.then(() => { | |
set(loadingState.loading, loader, false); | |
}, () => { | |
set(loadingState.loading, loader, false); | |
}); | |
}); | |
} | |
public render() { | |
return ( | |
<Component {...this.props} {...loadingState} /> | |
); | |
} | |
}; | |
}; | |
} |
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