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useSelectableResource hook dropped

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svetlagasheva 2020-04-16 10:03:03 +03:00
parent 15320104b0
commit d5ebaa150e
1 changed files with 0 additions and 97 deletions
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97
src/routes/MetaDetails/useSelectableResource.js
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@ -1,97 +0,0 @@
const React = require('react');
const isEqual = require('lodash.isequal');
const readyResourceForRequest = (resources, request) => {
return resources.reduce((result, resource) => {
if (resource.content.type === 'Ready' && isEqual(resource.request, request)) {
return resource;
}
return result;
}, null);
};
const reducer = (state, action) => {
switch (action.type) {
case 'resources-changed': {
if (state.selected.resource === null ||
!state.selected.byUser ||
readyResourceForRequest(action.resources, state.selected.resource.request) === null) {
const selectedResource = action.resources.reduce((result, resource) => {
if (resource.content.type === 'Ready') {
return resource;
}
return result;
}, null);
return {
...state,
resourceRef: action.resourceRef,
resources: action.resources,
selected: {
resource: selectedResource,
byUser: false
}
};
}
return {
...state,
resourceRef: action.resourceRef,
resources: action.resources
};
}
case 'resource-selected': {
const selectedResource = readyResourceForRequest(state.resources, action.request);
if (selectedResource !== null) {
return {
...state,
selected: {
resource: selectedResource,
byUser: true
}
};
}
return state;
}
default: {
return state;
}
}
};
const initializer = ([resourceRef, resources]) => {
const initialState = {
resourceRef: null,
resources: [],
selected: {
resource: null,
byUser: false
}
};
const initAction = {
type: 'resources-changed',
resourceRef,
resources
};
return reducer(initialState, initAction);
};
const useSelectableResource = (resourceRef, resources) => {
const [state, dispatch] = React.useReducer(
reducer,
[resourceRef, resources],
initializer
);
const selectResource = React.useCallback((request) => {
dispatch({ type: 'resource-selected', request });
}, []);
React.useEffect(() => {
dispatch({ type: 'resources-changed', resourceRef, resources });
}, [resourceRef, resources]);
return [state.resourceRef, state.resources, state.selected.resource, selectResource];
};
module.exports = useSelectableResource;