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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
/**
* Expressions reducer
* @module reducers/expressions
*/
import { prefs } from "../utils/prefs";
export const initialExpressionState = () => ({
expressions: restoreExpressions(),
autocompleteMatches: {},
currentAutocompleteInput: null,
});
function update(state = initialExpressionState(), action) {
switch (action.type) {
case "ADD_EXPRESSION":
return appendExpressionToList(state, {
input: action.input,
value: null,
updating: true,
});
case "UPDATE_EXPRESSION":
const key = action.expression.input;
return updateExpressionInList(state, key, {
input: action.input,
value: null,
updating: true,
});
case "EVALUATE_EXPRESSION":
return updateExpressionInList(state, action.input, {
input: action.input,
value: action.value,
updating: false,
});
case "EVALUATE_EXPRESSIONS":
const { inputs, results } = action;
return inputs.reduce(
(_state, input, index) =>
updateExpressionInList(_state, input, {
input,
value: results[index],
updating: false,
}),
state
);
case "DELETE_EXPRESSION":
return deleteExpression(state, action.input);
case "AUTOCOMPLETE":
const { matchProp, matches } = action.result;
return {
...state,
currentAutocompleteInput: matchProp,
autocompleteMatches: {
...state.autocompleteMatches,
[matchProp]: matches,
},
};
case "CLEAR_AUTOCOMPLETE":
return {
...state,
autocompleteMatches: {},
currentAutocompleteInput: "",
};
}
return state;
}
function restoreExpressions() {
const exprs = prefs.expressions;
if (!exprs.length) {
return [];
}
return exprs;
}
function storeExpressions({ expressions }) {
// Return the expressions without the `value` property
prefs.expressions = expressions.map(({ input, updating }) => ({
input,
updating,
}));
}
function appendExpressionToList(state, value) {
const newState = { ...state, expressions: [...state.expressions, value] };
storeExpressions(newState);
return newState;
}
function updateExpressionInList(state, key, value) {
const list = [...state.expressions];
const index = list.findIndex(e => e.input == key);
list[index] = value;
const newState = { ...state, expressions: list };
storeExpressions(newState);
return newState;
}
function deleteExpression(state, input) {
const list = [...state.expressions];
const index = list.findIndex(e => e.input == input);
list.splice(index, 1);
const newState = { ...state, expressions: list };
storeExpressions(newState);
return newState;
}
export default update;