Files
frontend-app-gradebook/src/data/selectors/grades.js
Ben Warzeski dabd923b10 linting
2020-08-26 14:11:02 -04:00

121 lines
3.0 KiB
JavaScript

import { formatDateForDisplay } from '../actions/utils';
import { getFilters } from './filters';
const getRowsProcessed = (data) => {
const {
processed_rows: processed,
saved_rows: saved,
total_rows: total,
} = data;
return {
total,
successfullyProcessed: saved,
failed: processed - saved,
skipped: total - processed,
};
};
const transformHistoryEntry = (historyRow) => {
const {
modified,
original_filename: originalFilename,
data,
...rest
} = historyRow;
const timeUploaded = formatDateForDisplay(new Date(modified));
const summaryOfRowsProcessed = getRowsProcessed(data);
return {
timeUploaded,
originalFilename,
summaryOfRowsProcessed,
...rest,
};
};
const getBulkManagementHistoryFromState = state => state.grades.bulkManagement.history || [];
const getBulkManagementHistory = state => getBulkManagementHistoryFromState(state).map(transformHistoryEntry);
const headingMapper = (category, label = 'All') => {
const filters = {
all: section => section.label,
byCategory: section => section.label && section.category === category,
byLabel: section => section.label && section.label === label,
};
let filter;
if (label === 'All') {
filter = category === 'All' ? 'all' : 'byCategory';
} else {
filter = 'byLabel';
}
return (entry) => {
if (entry) {
const results = ['Username', 'Email'];
const assignmentHeadings = entry
.filter(filters[filter])
.map(s => s.label);
const totals = ['Total'];
return results.concat(assignmentHeadings).concat(totals);
}
return [];
};
};
const getExampleSectionBreakdown = state => (state.grades.results[0] || {}).section_breakdown || [];
const getHeadings = (state) => {
const filters = getFilters(state) || {};
const {
assignmentType: selectedAssignmentType,
assignment: selectedAssignment,
} = filters;
const assignments = getExampleSectionBreakdown(state);
const type = selectedAssignmentType || 'All';
const assignment = (selectedAssignment || {}).label || 'All';
return headingMapper(type, assignment)(assignments);
};
const composeFilters = (...predicates) => (percentGrade, options = {}) => predicates.reduce((accum, predicate) => {
if (predicate(percentGrade, options)) {
return null;
}
return accum;
}, percentGrade);
const percentGradeIsMax = percentGrade => (
percentGrade === '100'
);
const percentGradeIsMin = percentGrade => (
percentGrade === '0'
);
const assignmentIdIsDefined = (percentGrade, { assignmentId }) => (
!assignmentId
);
const formatMaxCourseGrade = composeFilters(percentGradeIsMax);
const formatMinCourseGrade = composeFilters(percentGradeIsMin);
const formatMaxAssignmentGrade = composeFilters(
percentGradeIsMax,
assignmentIdIsDefined,
);
const formatMinAssignmentGrade = composeFilters(
percentGradeIsMin,
assignmentIdIsDefined,
);
export {
getBulkManagementHistory,
getHeadings,
formatMinAssignmentGrade,
formatMaxAssignmentGrade,
formatMaxCourseGrade,
formatMinCourseGrade,
};