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| 1 | +const admin = require("firebase-admin"); |
| 2 | +const { getFcmTokenFromUserId } = require("../services/getFcmTokenFromUserId"); |
| 3 | +const { getUserIdsFromRoleId } = require("../services/getUserIdsFromRoleId"); |
| 4 | + |
| 5 | +/** |
| 6 | + * Route used to get the health status of teh server |
| 7 | + * |
| 8 | + * @param req {Object} - Express request object |
| 9 | + * @param res {Object} - Express response object |
| 10 | + */ |
| 11 | +const notifyController = async (req, res) => { |
| 12 | + const { title, body, userId, groupRoleId } = req.body; |
| 13 | + let fcmTokens = []; |
| 14 | + if (userId) { |
| 15 | + const fcmTokensFromUserId = await getFcmTokenFromUserId(userId); |
| 16 | + fcmTokens = [...fcmTokens, ...fcmTokensFromUserId]; |
| 17 | + } |
| 18 | + |
| 19 | + let userIdsFromRoleId = []; |
| 20 | + let fcmTokensFromUserId; |
| 21 | + if (groupRoleId) { |
| 22 | + try { |
| 23 | + userIdsFromRoleId = await getUserIdsFromRoleId(groupRoleId); |
| 24 | + } catch (error) { |
| 25 | + logger.error("error ", error); |
| 26 | + throw error; |
| 27 | + } |
| 28 | + |
| 29 | + const fcmTokensPromiseArray = userIdsFromRoleId.map(async (userId) => { |
| 30 | + try { |
| 31 | + fcmTokensFromUserId = await getFcmTokenFromUserId(userId); |
| 32 | + } catch (error) { |
| 33 | + logger.error("error ", error); |
| 34 | + throw error; |
| 35 | + } |
| 36 | + fcmTokens = [...fcmTokens, ...fcmTokensFromUserId]; |
| 37 | + }); |
| 38 | + try { |
| 39 | + await Promise.all(fcmTokensPromiseArray); |
| 40 | + } catch (error) { |
| 41 | + logger.error("error", error); |
| 42 | + throw error; |
| 43 | + } |
| 44 | + } |
| 45 | + |
| 46 | + const setOfFcmTokens = new Set(fcmTokens); |
| 47 | + |
| 48 | + const message = { |
| 49 | + notification: { |
| 50 | + title: title || "Notification Title", |
| 51 | + body: body || "Notification Body", |
| 52 | + }, |
| 53 | + data: { |
| 54 | + key1: "value1", |
| 55 | + key2: "value2", |
| 56 | + }, |
| 57 | + tokens: Array.from(setOfFcmTokens), |
| 58 | + }; |
| 59 | + function calculateMessageSize(message) { |
| 60 | + const byteArray = new TextEncoder().encode(message); |
| 61 | + |
| 62 | + const byteLength = byteArray.length; |
| 63 | + |
| 64 | + const kilobytes = byteLength / 1024; |
| 65 | + |
| 66 | + return kilobytes; |
| 67 | + } |
| 68 | + if (calculateMessageSize(message) >= 2) { |
| 69 | + res.error(401).send("Message length exceeds"); |
| 70 | + } |
| 71 | + admin |
| 72 | + .messaging() |
| 73 | + .sendMulticast(message) |
| 74 | + .then(() => res.status(200).json({ status: 200, message: "User notified successfully" })) |
| 75 | + .catch((error) => { |
| 76 | + logger.error("Error sending message:", error); |
| 77 | + res.status(500).json({ status: 500, message: "Internal server error" }); |
| 78 | + }); |
| 79 | +}; |
| 80 | + |
| 81 | +module.exports = { |
| 82 | + notifyController, |
| 83 | +}; |
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