stellar smart contract

src/lib/stores/contractStore.js

@@ -0,0 +1,33 @@
+import { writable } from 'svelte/store';
+import  Contract  from 'stellar-sdk';
+
+function createContractStore() {
+    const { subscribe, set, update } = writable({
+        savedContracts: loadSavedContracts()
+    });
+
+    return {
+        subscribe,
+        saveContract: (contract) => update(store => {
+            const newSavedContracts = [...store.savedContracts, contract];
+            localStorage.setItem('savedContracts', JSON.stringify(newSavedContracts));
+            return { ...store, savedContracts: newSavedContracts };
+        }),
+        removeContract: (contractId) => update(store => {
+            const newSavedContracts = store.savedContracts.filter(c => c.id !== contractId);
+            localStorage.setItem('savedContracts', JSON.stringify(newSavedContracts));
+            return { ...store, savedContracts: newSavedContracts };
+        }),
+        setCurrentContract: (contract) => update(store => ({
+            ...store,
+            currentContract: contract
+        }))
+    };
+}
+
+function loadSavedContracts() {
+    const saved = localStorage.getItem('savedContracts');
+    return saved ? JSON.parse(saved) : [];
+}
+
+export const contractStore = createContractStore();

src/lib/utils/contractUtils.js

@@ -0,0 +1,24 @@
+import  Contract from 'stellar-sdk';
+
+export async function generateContractClient(contractId, server) {
+    try {
+        // Validate contract ID format
+        if (!contractId.match(/^C[A-Z2-7]{55}$/)) {
+            throw new Error('Invalid contract ID format');
+        }
+
+        // Get the contract's footprint which includes the WASM hash
+        const footprintResponse = await server.getFootprint(contractId);
+
+        // Create contract instance
+        const contract = new Contract(contractId);
+
+        // You might want to add the contract's interface here
+        // This would involve parsing the WASM to get available methods
+
+        return contract;
+    } catch (error) {
+        console.error('Error generating contract client:', error);
+        throw new Error(`Failed to generate contract client: ${error.message}`);
+    }
+}

src/routes/dashboard/components/SidebarMenu.svelte

@@ -17,6 +17,7 @@ list of menu links that can be used to navigate throughout the dashboard.
         { route: '/dashboard/assets', text: 'Assets' },
         { route: '/dashboard/contacts', text: 'Contacts' },
         { route: '/dashboard/transfers', text: 'Transfers' },
+          { route: '/dashboard/contracts', text: 'Smart Contracts' }
     ]
 </script>
 

src/routes/dashboard/contracts/+page.svelte

@@ -0,0 +1,93 @@
+<script lang="ts">
+    import { contractStore } from '$lib/stores/contractStore';
+    import { generateContractClient } from '$lib/utils/contractUtils';
+    import  SorobanRpc  from 'stellar-sdk';
+
+    let contractId = '';
+    let contractName = '';
+    let error = '';
+    let loading = false;
+
+    const server = new SorobanRpc.Server('https://soroban-testnet.stellar.org');
+
+    async function handleLoadContract() {
+        loading = true;
+        error = '';
+
+        try {
+            const contract = await generateContractClient(contractId, server);
+            $contractStore.setCurrentContract(contract);
+
+            // Optionally save the contract
+            if (contractName) {
+                $contractStore.saveContract({
+                    id: contractId,
+                    name: contractName,
+                    network: 'TESTNET' // or 'PUBLIC' for mainnet
+                });
+            }
+        } catch (err) {
+            error = err.message;
+        } finally {
+            loading = false;
+        }
+    }
+</script>
+
+<div class="container mx-auto p-4">
+    <h1 class="text-2xl font-bold mb-4">Stellar Smart Contract Interaction</h1>
+
+    <div class="mb-4">
+        <label class="block text-sm font-medium mb-1" for="contractId">
+            Contract ID
+        </label>
+        <input
+            id="contractId"
+            type="text"
+            bind:value={contractId}
+            placeholder="Enter contract ID (C...)"
+            class="w-full p-2 border rounded"
+        />
+    </div>
+
+    <div class="mb-4">
+        <label class="block text-sm font-medium mb-1" for="contractName">
+            Contract Name (optional)
+        </label>
+        <input
+            id="contractName"
+            type="text"
+            bind:value={contractName}
+            placeholder="Enter a name for this contract"
+            class="w-full p-2 border rounded"
+        />
+    </div>
+
+    <button
+        on:click={handleLoadContract}
+        disabled={loading}
+        class="bg-blue-500 text-white px-4 py-2 rounded"
+    >
+        {loading ? 'Loading...' : 'Load Contract'}
+    </button>
+
+    {#if error}
+        <div class="text-red-500 mt-2">{error}</div>
+    {/if}
+
+    <h2 class="text-xl font-bold mt-8 mb-4">Saved Contracts</h2>
+    {#each $contractStore.savedContracts as contract}
+        <div class="border p-4 rounded mb-2 flex justify-between items-center">
+            <div>
+                <span class="font-medium">{contract.name || 'Unnamed Contract'}</span>
+                <span class="text-sm text-gray-500 block">{contract.id}</span>
+            </div>
+            <button
+                on:click={() => contractId = contract.id}
+                class="bg-gray-200 px-3 py-1 rounded"
+            >
+                Load
+            </button>
+        </div>
+    {/each}
+</div>