ExerciseTracker/exercises/exercises_controller.mjs

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import "dotenv/config";
import express from "express";
import asyncHandler from "express-async-handler";
import * as exercises from "./exercises_model.mjs";
const app = express();
const PORT = process.env.PORT;
app.use(express.json());
/**
* Validates date format
* @param {string} date
* Return true if the date format is MM-DD-YY
*/
function isDateValid(date) {
const format = /^\d\d-\d\d-\d\d$/;
return format.test(date);
}
/**
* Route handler for retrieving all exercises
*/
app.get(
"/exercises",
asyncHandler(async (req, res) => {
let filter = {};
const exercise = await exercises.findExercises(filter);
res.status(200).json(exercise);
})
);
/**
* Route handler for retrieving an exercise by ID
*/
app.get(
"/exercises/:_id",
asyncHandler(async (req, res) => {
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const exercise = await exercises.findExerciseById(req.params._id);
if (exercise !== null) {
res.status(200).json(exercise);
} else {
res.status(404).json({ Error: "Not found" });
}
})
);
/**
* Route handler for creating new exercises
*/
app.post(
"/exercises",
asyncHandler(async (req, res) => {
let isValid;
if (req.body.name === "" || typeof req.body.name !== "string") {
isValid = false;
//console.log("name");
} else if (req.body.reps < 1) {
isValid = false;
//console.log("reps");
} else if (req.body.weight < 1) {
isValid = false;
//console.log("weight");
} else if (req.body.unit !== "lbs" && req.body.unit !== "kgs") {
isValid = false;
//console.log("unit");
} else if (!isDateValid(req.body.date)) {
isValid = false;
//console.log("date");
} else {
isValid = true;
}
if (isValid) {
const exercise = await exercises.createExercise(
req.body.name,
req.body.reps,
req.body.weight,
req.body.unit,
req.body.date
);
res.status(201).json(exercise);
} else {
res.status(400).json({ Error: "Invalid request" });
}
})
);
/**
* Route handler for updating an exercise
*/
app.put(
"/exercises/:_id",
asyncHandler(async (req, res) => {
let isValid;
let resultVal;
if (req.body.name === "" || typeof req.body.name !== "string") {
isValid = false;
} else if (req.body.reps < 1) {
isValid = false;
} else if (req.body.weight < 1) {
isValid = false;
} else if (req.body.unit !== "lbs" && req.body.unit !== "kgs") {
isValid = false;
} else if (!isDateValid(req.body.date)) {
isValid = false;
} else {
isValid = true;
}
if (isValid) {
const update = {};
update.name = req.body.name;
update.reps = req.body.reps;
update.weight = req.body.weight;
update.unit = req.body.unit;
update.date = req.body.date;
resultVal = await exercises.updateExercise(
{ _id: req.params._id },
update
);
if (resultVal > 0) {
const exercise = await exercises.findExerciseById(req.params._id);
res.status(200).json(exercise);
} else {
res.status(404).json({ Error: "Not Found" });
}
} else {
res.status(400).json({ Error: "Invalid request" });
}
})
);
/**
* Route handler for deleting an exercise
*/
app.delete(
"/exercises/:_id",
asyncHandler(async (req, res) => {
const resultVal = await exercises.deleteExercise({ _id: req.params._id });
if (resultVal > 0) {
res.status(204).json({ Success: "Deleted" });
} else {
res.status(404).json({ Error: "Not found" });
}
})
);
app.listen(PORT, () => {
console.log(`Server listening on port ${PORT}...`);
});