Finish all code. real deposit/2-step withdrawal/redeem for UMA; edit …

…Balancer weights.

app/assets/javascripts/uma_synthetic.js.erb

@@ -0,0 +1,139 @@
+function deposit_collateral(pie, uma_address) {
+	var amount = $('#amount').val();
+
+	if (amount > 0) {
+		try {
+			uma_deposit(uma_address, amount.toString());
+
+			jQuery.ajax({url: '/pies/'+ pie + '/deposit_collateral.js',
+			             data: {'amount': amount},
+			             type: "PUT",
+			             success: function(data) { update_graphics(JSON.parse(data)); },
+			             error: function() { alert('Oh noes!'); }, 
+			             async: false});
+       }
+       catch(err) {
+       	   alert(JSON.stringify(err));
+       }
+    }
+    else {
+    	alert("Please enter a valid amount");
+    }
+}
+
+async function uma_deposit(uma_address, amount) {
+    web3 = new Web3(web3.currentProvider);
+    provider = new ethers.providers.Web3Provider(web3.currentProvider);
+
+    var emp = new ethers.Contract(uma_address,
+                                  JSON.parse('<%=EMP_ABI.html_safe%>'),
+                                  provider.getSigner(0));
+
+	await emp.deposit({ rawValue: web3.utils.toWei(amount) });
+}
+
+async function request_withdrawal(pool, uma_address) {
+	var amount = $('#amount').val();
+
+	if (amount > 0) {	
+        web3 = new Web3(web3.currentProvider);
+        provider = new ethers.providers.Web3Provider(web3.currentProvider);
+
+	    var emp = new ethers.Contract(uma_address,
+	                                  JSON.parse('<%=EMP_ABI.html_safe%>'),
+	                                  provider.getSigner(0));
+
+		try {
+		    await emp.requestWithdrawal({ rawValue: web3.utils.toWei(amount) });
+
+			jQuery.ajax({url: '/balancer_pools/'+ pool + '/request_withdrawal.js',
+			             data: {'amount': amount},
+			             type: "PUT",
+			             success: function(data) { alert("If undisputed, your withdrawal will be available in 2 hours"); window.location.reload(); },
+			             error: function() { alert('You cannot withdraw so much that your collateralization falls below the minimum!'); }, 
+			             async: false});
+		}
+	    catch(err) {
+	   	    alert(JSON.stringify(err));
+	    }
+	}
+	else {
+		alert("Please enter a valid amount");
+	}
+}
+
+function withdraw_collateral(pie, uma_address) {
+	try {
+		uma_withdrawal(uma_address);
+
+		jQuery.ajax({url: '/pies/'+ pie + '/withdraw_collateral.js',
+		             type: "PUT",
+		             success: function(data) { update_graphics(JSON.parse(data)); },
+		             error: function() { alert('You cannot withdraw so much that your collateralization falls below the minimum!'); }, 
+		             async: false});
+   }
+   catch(err) {
+   	   alert(JSON.stringify(err));
+   }
+}
+
+async function uma_withdrawal(uma_address) {
+    web3 = new Web3(web3.currentProvider);
+    provider = new ethers.providers.Web3Provider(web3.currentProvider);
+
+    var emp = new ethers.Contract(uma_address,
+                                  JSON.parse('<%=EMP_ABI.html_safe%>'),
+                                  provider.getSigner(0));
+
+	await emp.withdrawPassedRequest();
+}
+
+function redeem_tokens(pie, uma_address) {
+	var amount = $('#amount').val();
+
+	if (amount > 0) {
+	    try {
+			uma_redeem(uma_address, amount);
+
+			jQuery.ajax({url: '/pies/'+ pie + '/redeem_tokens.js',
+			             data: {'amount': amount},
+			             type: "PUT",
+			             success: function(data) { update_graphics(JSON.parse(data)); },
+			             error: function() { alert('Oh noes!'); }, 
+			             async: false});
+        }
+        catch(err) {
+       	    alert(JSON.stringify(err));
+        }
+    }
+    else {
+    	alert("Please enter a valid amount");
+    }
+}
+
+async function uma_redeem(uma_address, amount) {
+    web3 = new Web3(web3.currentProvider);
+    provider = new ethers.providers.Web3Provider(web3.currentProvider);
+
+    var emp = new ethers.Contract(uma_address,
+                                  JSON.parse('<%=EMP_ABI.html_safe%>'),
+                                  provider.getSigner(0));
+
+	// Get the address of the synthetic token we deployed
+	const tokenAddress = await emp.tokenCurrency();
+
+    var syntheticToken = new ethers.Contract(tokenAddress,
+			                                 JSON.parse('<%=SYNTHETIC_TOKEN_ABI.html_safe%>'),
+			                                 provider.getSigner(0));
+
+	await syntheticToken.approve(uma_address, web3.utils.toWei(amount.toString()));
+
+	await emp.redeem({ rawValue: web3.utils.toWei(amount.toString()) });
+}
+
+function update_graphics(data) {
+	$('#collateralization').text(data.collateralization);
+	$('#collateral_progress').attr('class', data.progress_class + " progress-bar progress-bar-striped");
+	$('#adjustments').text(data.adjustments);
+	$('#total_value').text(data.total_value);
+}