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get_passenger_reservation.js
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get_passenger_reservation.js
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const aws = require('aws-sdk');
const ImagesBaseUrl = process.env.salgode_images_bucket_base_url;
const PlacesTableName = process.env.dynamodb_places_table_name;
let ImagesTableName = process.env.dynamodb_images_table_name;
let ReservationsTableName = process.env.dynamodb_reservations_table_name;
let TripsTableName = process.env.dynamodb_trips_table_name;
let UsersTableName = process.env.dynamodb_users_table_name;
let VehiclesTableName = process.env.dynamodb_vehicles_table_name;
function stagingOverwrite() {
ImagesTableName = `Dev_${process.env.dynamodb_images_table_name}`;
ReservationsTableName = `Dev_${process.env.dynamodb_reservations_table_name}`;
TripsTableName = `Dev_${process.env.dynamodb_trips_table_name}`;
UsersTableName = `Dev_${process.env.dynamodb_users_table_name}`;
VehiclesTableName = `Dev_${process.env.dynamodb_vehicles_table_name}`;
}
const dynamoDB = new aws.DynamoDB.DocumentClient();
function mapIdKeys(ids, key) {
return ids.map((i) => ({
[key]: i
}));
}
function parseUrl(baseUrl, folder, file) {
return `${baseUrl}/${folder}/${file}`;
}
async function getReservation(reservationId) {
const params = {
TableName: ReservationsTableName,
Key: {
reservation_id: reservationId
},
ProjectionExpression:
'passenger_id, reservation_id, reserved_seats, route, reservation_status, trip_id'
};
const data = await dynamoDB.get(params).promise();
return data.Item;
}
async function getTrip(tripId) {
const params = {
TableName: TripsTableName,
Key: {
trip_id: tripId
},
ProjectionExpression:
'driver_id, etd_info, route_points, vehicle_id'
};
const data = await dynamoDB.get(params).promise();
return data.Item;
}
async function getImageUrl(imageId) {
const params = {
TableName: ImagesTableName,
Key: {
image_id: imageId
},
ProjectionExpression: 'file_name, folder_name'
};
const data = await dynamoDB.get(params).promise();
const image = data.Item;
return parseUrl(ImagesBaseUrl, image.folder_name, image.file_name);
}
async function getDriverInformation(driverId) {
const params = {
TableName: UsersTableName,
Key: {
user_id: driverId
},
ProjectionExpression:
'first_name, phone, user_identifications, user_verifications'
};
const data = await dynamoDB.get(params).promise();
const response = {
driver_id: driverId,
driver_name: data.Item.first_name,
driver_phone: data.Item.phone,
driver_avatar: await getImageUrl(data.Item.user_identifications.selfie_image),
driver_verifications: {
email: data.Item.user_verifications.email,
phone: data.Item.user_verifications.phone,
selfie_image: data.Item.user_verifications.selfie_image,
identity:
data.Item.user_verifications.identification.front
&& data.Item.user_verifications.identification.back,
driver_license:
data.Item.user_verifications.driver_license.front
&& data.Item.user_verifications.driver_license.back
}
};
return response;
}
async function getVehicleInformation(vehicleId) {
const params = {
TableName: VehiclesTableName,
Key: {
vehicle_id: vehicleId
},
ProjectionExpression:
'vehicle_attributes, vehicle_identifications'
};
const data = await dynamoDB.get(params).promise();
const response = {
vehicle_id: vehicleId,
vehicle_type: data.Item.vehicle_attributes.type,
vehicle_color: data.Item.vehicle_attributes.color,
vehicle_identification: data.Item.vehicle_identifications.identification
};
return response;
}
async function getFullPlaceInfoFromRoute(placeIds) {
const params = {
RequestItems: {
[PlacesTableName]: {
Keys: mapIdKeys(placeIds, 'place_id'),
ProjectionExpression:
'place_id, place_name, lat, lon'
}
}
};
const data = await dynamoDB.batchGet(params).promise();
return data.Responses[PlacesTableName];
}
async function formatResponse(reservation, trip) {
let place;
const reservationRouteRaw = await getFullPlaceInfoFromRoute(Object.values(reservation.route));
const tripRouteRaw = await getFullPlaceInfoFromRoute(trip.route_points);
const reservationRoute = [];
const tripRoute = [];
const startPlace = reservationRouteRaw.find((rr) => rr.place_id === reservation.route.start);
const endPlace = reservationRouteRaw.find((rr) => rr.place_id === reservation.route.end);
reservationRoute.push({
place_id: startPlace.place_id,
place_name: startPlace.place_name,
lat: startPlace.lat,
lon: startPlace.lon
});
reservationRoute.push({
place_id: endPlace.place_id,
place_name: endPlace.place_name,
lat: endPlace.lat,
lon: endPlace.lon
});
for (let i = 0; i < tripRouteRaw.length; i += 1) {
place = tripRouteRaw.find((rr) => rr.place_id === trip.route_points[i]);
tripRoute.push({
place_id: place.place_id,
place_name: place.place_name,
lat: place.lat,
lon: place.lon
});
}
return {
reservation_id: reservation.reservation_id,
reservation_status: reservation.reservation_status,
trip_id: reservation.trip_id,
trip_role: 'passenger',
driver: await getDriverInformation(trip.driver_id),
vehicle: await getVehicleInformation(trip.vehicle_id),
etd_info: trip.etd_info,
reservation_route: {
start: reservationRoute[0],
end: reservationRoute[1]
},
trip_route: {
start: tripRoute[0],
end: tripRoute[tripRoute.length - 1]
},
trip_route_points: tripRoute
};
}
exports.handler = async (event) => {
if (event.requestContext.stage === 'staging') { stagingOverwrite(); }
const userId = event.requestContext.authorizer.user_id;
const reservationId = event.pathParameters.reservation;
const reservation = await getReservation(reservationId);
if (reservation.passenger_id !== userId) {
return {
statusCode: 401,
headers: { 'Access-Control-Allow-Origin': '*' },
body: JSON.stringify({ message: 'Unauthorized' })
};
}
const trip = await getTrip(reservation.trip_id);
const result = await formatResponse(reservation, trip);
return {
statusCode: 200,
headers: { 'Access-Control-Allow-Origin': '*' },
body: JSON.stringify(result)
};
};