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refactor: extract duplicated CSV fetch logic into a single reusable function in useCSVData #103

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refactor: extract duplicated CSV fetch logic into a single reusable function in useCSVData #103

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91 changes: 24 additions & 67 deletions src/hooks/useCSVData.ts
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Original file line number Diff line number Diff line change
@@ -1,94 +1,47 @@
import { useState, useEffect } from 'react';
import { useState, useEffect, useCallback } from 'react';
import Papa, { ParseResult, ParseConfig } from 'papaparse';
import { EngagementData } from '@/types/dashboard';

const CSV_URL = '/data/weekly-engagement-data.csv';

export function useCSVData() {
const [data, setData] = useState<EngagementData[]>([]);
const [isLoading, setIsLoading] = useState(true);
const [isError, setIsError] = useState(false);
const [timestamp, setTimestamp] = useState<number>(0);

useEffect(() => {
async function fetchCSV() {
try {
console.log('Fetching CSV data...');
const response = await fetch('/data/weekly-engagement-data.csv', {
method: 'GET',
headers: {
'Accept': 'text/csv'
}
});
if (!response.ok) {
throw new Error('Failed to fetch CSV: ' + response.statusText);
}

const csvText = await response.text();
console.log('CSV data received, starting parsing...');

const parseConfig: ParseConfig<EngagementData> = {
header: true,
dynamicTyping: true,
skipEmptyLines: true,
complete: (results: ParseResult<EngagementData>) => {
console.log('CSV parsing complete:', {
rows: results.data.length,
fields: results.meta.fields,
errors: results.errors
});

if (results.errors.length > 0) {
console.error('CSV parsing errors:', results.errors);
}

setData(results.data);
setIsLoading(false);
setTimestamp(Date.now());
},
error: (error: Error) => {
console.error('CSV parsing error:', error);
setIsError(true);
setIsLoading(false);
}
} as ParseConfig<EngagementData>;

Papa.parse(csvText, parseConfig);
} catch (error) {
console.error('Error loading CSV:', error);
setIsError(true);
setIsLoading(false);
}
}

fetchCSV();
}, []);

const mutate = async () => {
const loadCSV = useCallback(async () => {
setIsLoading(true);
setIsError(false);
try {
console.log('Manually refreshing CSV data...');
const response = await fetch('/data/weekly-engagement-data.csv', {
console.log('Fetching CSV data...');
const response = await fetch(CSV_URL, {
method: 'GET',
headers: {
'Accept': 'text/csv'
}
headers: { 'Accept': 'text/csv' }
});

if (!response.ok) {
throw new Error('Failed to fetch CSV: ' + response.statusText);
}

const csvText = await response.text();
console.log('CSV refresh: data received, starting parsing...');
console.log('CSV data received, starting parsing...');

const parseConfig: ParseConfig<EngagementData> = {
header: true,
dynamicTyping: true,
skipEmptyLines: true,
complete: (results: ParseResult<EngagementData>) => {
console.log('CSV refresh parsing complete:', {
console.log('CSV parsing complete:', {
rows: results.data.length,
fields: results.meta.fields,
errors: results.errors
});

if (results.errors.length > 0) {
console.error('CSV parsing errors:', results.errors);
}

setData(results.data);
setIsLoading(false);
setTimestamp(Date.now());
Expand All @@ -102,17 +55,21 @@ export function useCSVData() {

Papa.parse(csvText, parseConfig);
} catch (error) {
console.error('Error refreshing CSV:', error);
console.error('Error loading CSV:', error);
setIsError(true);
setIsLoading(false);
}
};
}, []);

useEffect(() => {
loadCSV();
}, [loadCSV]);

return {
data,
isLoading,
isError,
mutate,
mutate: loadCSV,
timestamp
};
}
}