97 lines
2.6 KiB
JavaScript
97 lines
2.6 KiB
JavaScript
const cds = require("@sap/cds");
|
|
const moment = require("moment");
|
|
|
|
const LEVERAGE_DURATION = 1; // in hours. should be the same in the frontend
|
|
const CANCEL_STATUS = -1;
|
|
|
|
// the same function there is in the frontend
|
|
const isLeverageTimeExpired = (invoiceDate) => {
|
|
const duration = moment.duration(
|
|
moment(moment().utc().format()).diff(invoiceDate)
|
|
);
|
|
return duration.asHours() > LEVERAGE_DURATION;
|
|
};
|
|
|
|
module.exports = async function () {
|
|
const db = await cds.connect.to("db"); // connect to database service
|
|
const { Invoices, InvoiceItems } = db.entities;
|
|
|
|
this.before("*", (req) => {
|
|
console.log(
|
|
"[USER]:",
|
|
req.user.id,
|
|
" [LEVEL]: ",
|
|
req.user.attr.level,
|
|
"[ROLE]",
|
|
req.user.is("user") ? "user" : "other"
|
|
);
|
|
});
|
|
|
|
this.on("READ", "Invoices", async (req) => {
|
|
return await db.run(req.query.where({ customer_ID: req.user.attr.ID }));
|
|
});
|
|
|
|
this.on("invoice", async (req) => {
|
|
const { tracks } = req.data;
|
|
const customerId = req.user.attr.ID;
|
|
const invoiceDate = moment().utc().valueOf();
|
|
const total = tracks.reduce(
|
|
(acc, { unitPrice }) => acc + Number(unitPrice),
|
|
0
|
|
);
|
|
|
|
const { ID: lastInvoiceItemId } = await db.run(
|
|
SELECT.one(InvoiceItems).columns("ID").orderBy({ ID: "desc" })
|
|
);
|
|
const { ID: lastInvoiceId } = await db.run(
|
|
SELECT.one(Invoices).columns("ID").orderBy({ ID: "desc" })
|
|
);
|
|
|
|
const transaction = await db.tx(req);
|
|
await transaction.run(
|
|
INSERT.into(Invoices)
|
|
.columns("ID", "customer_ID", "total", "invoiceDate")
|
|
.values(lastInvoiceId + 1, customerId, total, invoiceDate)
|
|
);
|
|
await transaction.run(
|
|
INSERT.into(InvoiceItems)
|
|
.columns("ID", "invoice_ID", "track_ID", "unitPrice")
|
|
.rows(
|
|
tracks.map(({ ID, unitPrice }, index) => [
|
|
lastInvoiceItemId + (index + 1),
|
|
lastInvoiceId + 1,
|
|
ID,
|
|
unitPrice,
|
|
])
|
|
)
|
|
);
|
|
await transaction.commit();
|
|
});
|
|
|
|
this.on("cancelInvoice", async (req) => {
|
|
const { ID } = req.data;
|
|
const currentInvoice = await db.run(
|
|
SELECT.one(Invoices)
|
|
.where({
|
|
ID,
|
|
customer_ID: req.user.attr.ID,
|
|
})
|
|
.columns("ID", "invoiceDate", "customer_ID")
|
|
);
|
|
if (!currentInvoice) {
|
|
req.reject(
|
|
404,
|
|
"Seems like you are not owning this invoice or it is not exists"
|
|
);
|
|
}
|
|
|
|
if (isLeverageTimeExpired(currentInvoice.invoiceDate)) {
|
|
req.reject(400, "Leverage time was expired");
|
|
}
|
|
|
|
return await db.run(
|
|
UPDATE(Invoices).set({ status: CANCEL_STATUS }).where({ ID })
|
|
);
|
|
});
|
|
};
|