Initial commit 🚀

4-natours/after-section-12/controllers/tourController.js

@@ -0,0 +1,167 @@
+const Tour = require('./../models/tourModel');
+const catchAsync = require('./../utils/catchAsync');
+const factory = require('./handlerFactory');
+const AppError = require('./../utils/appError');
+
+exports.aliasTopTours = (req, res, next) => {
+  req.query.limit = '5';
+  req.query.sort = '-ratingsAverage,price';
+  req.query.fields = 'name,price,ratingsAverage,summary,difficulty';
+  next();
+};
+
+exports.getAllTours = factory.getAll(Tour);
+exports.getTour = factory.getOne(Tour, { path: 'reviews' });
+exports.createTour = factory.createOne(Tour);
+exports.updateTour = factory.updateOne(Tour);
+exports.deleteTour = factory.deleteOne(Tour);
+
+exports.getTourStats = catchAsync(async (req, res, next) => {
+  const stats = await Tour.aggregate([
+    {
+      $match: { ratingsAverage: { $gte: 4.5 } }
+    },
+    {
+      $group: {
+        _id: { $toUpper: '$difficulty' },
+        numTours: { $sum: 1 },
+        numRatings: { $sum: '$ratingsQuantity' },
+        avgRating: { $avg: '$ratingsAverage' },
+        avgPrice: { $avg: '$price' },
+        minPrice: { $min: '$price' },
+        maxPrice: { $max: '$price' }
+      }
+    },
+    {
+      $sort: { avgPrice: 1 }
+    }
+    // {
+    //   $match: { _id: { $ne: 'EASY' } }
+    // }
+  ]);
+
+  res.status(200).json({
+    status: 'success',
+    data: {
+      stats
+    }
+  });
+});
+
+exports.getMonthlyPlan = catchAsync(async (req, res, next) => {
+  const year = req.params.year * 1; // 2021
+
+  const plan = await Tour.aggregate([
+    {
+      $unwind: '$startDates'
+    },
+    {
+      $match: {
+        startDates: {
+          $gte: new Date(`${year}-01-01`),
+          $lte: new Date(`${year}-12-31`)
+        }
+      }
+    },
+    {
+      $group: {
+        _id: { $month: '$startDates' },
+        numTourStarts: { $sum: 1 },
+        tours: { $push: '$name' }
+      }
+    },
+    {
+      $addFields: { month: '$_id' }
+    },
+    {
+      $project: {
+        _id: 0
+      }
+    },
+    {
+      $sort: { numTourStarts: -1 }
+    },
+    {
+      $limit: 12
+    }
+  ]);
+
+  res.status(200).json({
+    status: 'success',
+    data: {
+      plan
+    }
+  });
+});
+
+// /tours-within/:distance/center/:latlng/unit/:unit
+// /tours-within/233/center/34.111745,-118.113491/unit/mi
+exports.getToursWithin = catchAsync(async (req, res, next) => {
+  const { distance, latlng, unit } = req.params;
+  const [lat, lng] = latlng.split(',');
+
+  const radius = unit === 'mi' ? distance / 3963.2 : distance / 6378.1;
+
+  if (!lat || !lng) {
+    next(
+      new AppError(
+        'Please provide latitutr and longitude in the format lat,lng.',
+        400
+      )
+    );
+  }
+
+  const tours = await Tour.find({
+    startLocation: { $geoWithin: { $centerSphere: [[lng, lat], radius] } }
+  });
+
+  res.status(200).json({
+    status: 'success',
+    results: tours.length,
+    data: {
+      data: tours
+    }
+  });
+});
+
+exports.getDistances = catchAsync(async (req, res, next) => {
+  const { latlng, unit } = req.params;
+  const [lat, lng] = latlng.split(',');
+
+  const multiplier = unit === 'mi' ? 0.000621371 : 0.001;
+
+  if (!lat || !lng) {
+    next(
+      new AppError(
+        'Please provide latitutr and longitude in the format lat,lng.',
+        400
+      )
+    );
+  }
+
+  const distances = await Tour.aggregate([
+    {
+      $geoNear: {
+        near: {
+          type: 'Point',
+          coordinates: [lng * 1, lat * 1]
+        },
+        distanceField: 'distance',
+        distanceMultiplier: multiplier
+      }
+    },
+    {
+      $project: {
+        distance: 1,
+        name: 1
+      }
+    }
+  ]);
+
+  res.status(200).json({
+    status: 'success',
+    data: {
+      data: distances
+    }
+  });
+});