50 lines
1.1 KiB
JavaScript
50 lines
1.1 KiB
JavaScript
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import TestRepoBackend from './test-repo/Implementation';
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export function resolveBackend(config) {
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const name = config.getIn(['backend', 'name']);
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if (name == null) {
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throw 'No backend defined in configuration';
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}
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switch (name) {
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case 'test-repo':
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return new Backend(new TestRepoBackend(config));
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default:
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throw `Backend not found: ${name}`;
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}
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}
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class Backend {
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constructor(implementation, authStore = null) {
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this.implementation = implementation;
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this.authStore = authStore;
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if (this.implementation == null) {
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throw 'Cannot instantiate a Backend with no implementation';
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}
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}
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currentUser() {
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if (this.user) { return this.user; }
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return this.authStore && this.authStore.retrieve();
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}
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authComponent() {
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return this.implementation.authComponent();
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}
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authenticate(state) {
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return this.implementation.authenticate(state);
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}
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}
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export const currentBackend = (function() {
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let backend = null;
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return (config) => {
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if (backend) { return backend; }
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if (config.get('backend')) {
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return backend = resolveBackend(config);
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}
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};
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})();
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