implemented

- assigning new customer numbers to contacts that don`t have one
- updating customer number counter in company table

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

frontend/src/routes/document/Add.svelte

@@ -2,7 +2,7 @@
     import { onMount }       from 'svelte';
     import { useTinyRouter } from 'svelte-tiny-router';
 
-    import { api }           from '../../urls.svelte';
+    import { api, get }           from '../../urls.svelte';
     import { error, yikes }  from '../../warn.svelte';
     import { t }             from '../../translations.svelte';
 
@@ -67,10 +67,21 @@
         if (contact.ADR.street)   addr += contact.ADR.street+"\n";
         if (contact.ADR.locality) addr += contact.ADR.post_code + " "+ contact.ADR.locality + "\n";
         if (contact.ADR.county)   addr += contact.ADR.country+"\n";
-        document.customer.name   = addr;
-        document.customer.tax_id = contact.tax_id;
-        document.customer.id     = contact.customer_number;
-        document.customer.email  = contact.EMAIL;
+        document.customer.name       = addr;
+        document.customer.tax_id     = contact.tax_id;
+        document.customer.id         = contact.customer_number;
+        document.customer.email      = contact.EMAIL;
+        document.customer.contact_id = contact.id;
+        if (!document.customer.id) requestNewCustomerId();
+    }
+
+    async function requestNewCustomerId(){
+        var url = api(`company/${document.sender.company}/next_customer_number`);
+        var res = await get(url);
+            yikes();
+            document.customer.id = await res.text();
+        if (res.ok){
+        } else error(res);
     }
 
     async function submit(){

frontend/src/urls.svelte.js

@@ -4,6 +4,10 @@ export function api(rel_path){
     return `${location.protocol}//${location.host.replace('5173','8080')}/api/${rel_path}`;
 }
 
+export function get(url){
+    return fetch(url,{ credentials:'include' });
+}
+
 export function drop(url){
     return fetch(url,{
         credentials:'include',