add function to component

packages/desktop/components/popups/SignMessagePopup.svelte

@@ -6,10 +6,11 @@
     import { onMount } from 'svelte'
     import { selectedAccount } from '@core/account/stores'
     import { JsonRpcResponse } from '@walletconnect/jsonrpc-types'
-    import { sleep, truncateString } from '@core/utils'
+    import { truncateString } from '@core/utils'
     import { IConnectedDapp } from '@auxiliary/wallet-connect/interface'
     import { IAccountState } from '@core/account'
     import { IChain } from '@core/network'
+    import { signMessage } from '@core/wallet/actions'
 
     export let _onMount: (..._: any[]) => Promise<void> = async () => {}
     export let requestId: number
@@ -37,9 +38,10 @@
     }
 
     async function sign(): Promise<string> {
-        // TODO: Replace this with the correct signing implementation
-        await sleep(500)
-        return '0x3123'
+        const { chainId, coinType } = chain.getConfiguration()
+        const signedMessage = await signMessage(message, chainId, coinType, account)
+
+        return signedMessage
     }
 
     function onCancelClick(): void {

packages/shared/src/lib/core/wallet/actions/index.ts

@@ -10,5 +10,6 @@ export * from './mintNft'
 export * from './rejectActivity'
 export * from './sendOutput'
 export * from './unwrapStardustAsset'
+export * from './signMessage'
 
 export * from './send'

packages/shared/src/lib/core/wallet/actions/signMessage.ts

@@ -0,0 +1,45 @@
+import { IAccountState } from '@core/account'
+import { updateSelectedAccount } from '@core/account/stores'
+import { handleError } from '@core/error/handlers'
+import { EvmChainId } from '@core/network/enums'
+import { isActiveLedgerProfile, isSoftwareProfile } from '@core/profile/stores'
+import { get } from 'svelte/store'
+import { closePopup } from '../../../../../../desktop/lib/auxiliary/popup'
+import { signMessageWithStronghold } from '@core/stronghold/utils'
+
+export async function signMessage(
+    message: string,
+    chainId: EvmChainId,
+    coinType: number,
+    account: IAccountState
+): Promise<string | undefined> {
+    try {
+        updateSelectedAccount({ isTransferring: true })
+
+        const bip44Path = {
+            coinType,
+            account: account.index,
+            change: 0,
+            addressIndex: 0,
+        }
+        let signedMessage: string | undefined
+        if (get(isSoftwareProfile)) {
+            signedMessage = await signMessageWithStronghold(message, 'eth_sign', bip44Path, chainId, account)
+            // } else if (get(isActiveLedgerProfile)) {
+            //     signedMessage = await Ledger.signEvmTransaction(txData, chainId, bip44Path)
+        }
+
+        if (!signedMessage) {
+            if (get(isActiveLedgerProfile)) {
+                closePopup(true)
+            }
+            throw new Error('No signature provided')
+        }
+
+        return signedMessage
+    } catch (err) {
+        handleError(err)
+    } finally {
+        updateSelectedAccount({ isTransferring: false })
+    }
+}