From c6c42e8f8741f76c49343ae3099aefd26e701746 Mon Sep 17 00:00:00 2001
From: Aljaz S <me@aljaxus.eu>
Date: Thu, 25 Nov 2021 17:50:04 +0100
Subject: [PATCH] implement copuing QRCode URL in form creator

---
 src/public/style.css | 29 +++++++++++++++++-----
 src/views/form.ejs   | 48 +++++++++++++++++++++---------------
 src/views/index.ejs  | 58 +++++++++++++++++++++++++++++++++++++++++---
 3 files changed, 105 insertions(+), 30 deletions(-)

diff --git a/src/public/style.css b/src/public/style.css
index 5217068..1be1c25 100644
--- a/src/public/style.css
+++ b/src/public/style.css
@@ -75,7 +75,8 @@ pre {
 pre {
     overflow-x: scroll;
 }
-input {
+input,
+button {
     background-color: var(--c-dark);
     border-color: var(--c-dark);
     color: var(--c-primary);
@@ -84,12 +85,17 @@ input {
     font-family: monospace;
     outline: none;
 }
-input:read-only {
+button {
+    background-color: var(--c-darkish)
+}
+input:read-only,
+button:disabled {
     cursor: default;
     background-color: var(--c-darkish);
 }
-input:focus:not(:readonly),
-input:focus-visible:not(:readonly) {
+input:focus:not(:read-only),
+input:focus-visible:not(:read-only),
+button:focus:not(:disabled) {
     border-color: transparent;
     outline: solid 1px var(--c-accent);
 }
@@ -100,11 +106,12 @@ input[type=number] {
 
 input[type=submit],
 button {
+    --box-shadow-color: var(--c-accent);
     border: none;
     outline: solid 1px var(--c-accent);
     padding: 10px;
     vertical-align: top;
-    box-shadow: 4px 4px 1px 1px var(--c-accent);
+    box-shadow: 4px 4px 1px 1px var(--box-shadow-color);
     color: var(--c-accent);
     margin: 0 4px 4px 0;
     cursor: pointer;
@@ -119,7 +126,7 @@ button:focus-visible,
 button:hover {
     transition: all ease-in-out .2s;
     border: none;
-    box-shadow: 2px 2px 1px 1px var(--c-accent);
+    box-shadow: 2px 2px 1px 1px var(--box-shadow-color);
     margin: 2px;
 }
 
@@ -129,4 +136,14 @@ button:active {
     border: none;
     box-shadow: none;
     margin: 4px 0 0 4px;
+}
+button.success {
+    color: #6cc070;
+    outline-color: #6cc070;
+    --box-shadow-color: #6cc070;
+}
+button.error {
+    color: #ff6633;
+    outline-color: #ff6633;
+    --box-shadow-color: #ff6633;
 }
\ No newline at end of file
diff --git a/src/views/form.ejs b/src/views/form.ejs
index 285b7dc..6062dae 100644
--- a/src/views/form.ejs
+++ b/src/views/form.ejs
@@ -34,6 +34,12 @@ div {
     row-gap: .5rem;
     column-gap: 1rem;;
 }
+.code {
+    display: grid;
+    grid-template-rows: auto auto;
+    grid-template-columns: auto;
+    row-gap: 1rem;
+}
 .code {
     background-size: contain;
     background-position: top center;
@@ -67,7 +73,7 @@ div {
                 { n: "issuer-address",  d: "Issuer address",    p: "Za deveto smreko 15 k",     t: "text" },
                 { n: "issuer-city",     d: "Issuer city",       p: "1000 Ljubljana",            t: "text" },
                 { n: "iban",            d: "IBAN",              p: "SI56047500000280672",       t: "text" },
-                { n: "amount",          d: "Amount",            p: "00000001050",               t: "number" },
+                { n: "amount",          d: "Amount",            p: "35090 (350.90€)",               t: "number" },
                 { n: "code",            d: "Code",              p: "OTHR",                      t: "text" },
                 { n: "purpose",         d: "Purpose",           p: "moutain bike first half",   t: "text" },
                 { n: "reference",       d: "Reference",         p: "SI121234567890120",         t: "text" }
@@ -91,11 +97,8 @@ div {
     </div>
 </body>
 <script>
-const inputs = document.getElementsByTagName("input")
 const qrcode = document.getElementById("qrcode")
-function val (name) {
-    return document.getElementsByName(name)?.[0]?.value || ""
-}
+function val (name) { return document.getElementsByName(name)?.[0]?.value || "" }
 let debounce = null
 function updateQRdeb () {
     clearTimeout(debounce)
@@ -104,23 +107,26 @@ function updateQRdeb () {
         updateQR()
     }, 500);
 }
+function getNewUrl () {
+    const qstring = [
+        ["client_name", val("client-name")],
+        ["client_address", val("client-address")],
+        ["client_city", val("client-city")],
+        ["amount", val("amount").padStart(11, "0")],
+        ["purpose_code", val("code")],
+        ["payment_purpose", val("purpose")],
+        ["iban", val("iban")],
+        ["reference", val("reference")],
+        ["issuer_name", val("issuer-name")],
+        ["issuer_address", val("issuer-address")],
+        ["issuer_city", val("issuer-city")],
+    ].map(v => `${v[0]}=${v[1]}`).join("&")
+    return `${window.location.origin}/api/qrcode?${qstring}`
+}
 function updateQR (e) {
     try {
-        const qstring = [
-            ["client_name", val("client-name")],
-            ["client_address", val("client-address")],
-            ["client_city", val("client-city")],
-            ["amount", val("amount")],
-            ["purpose_code", val("code")],
-            ["payment_purpose", val("purpose")],
-            ["iban", val("iban")],
-            ["reference", val("reference")],
-            ["issuer_name", val("issuer-name")],
-            ["issuer_address", val("issuer-address")],
-            ["issuer_city", val("issuer-city")],
-        ].map(v => `${v[0]}=${v[1]}`).join("&")
-        const newurl = `/api/qrcode?${qstring}`
         const preloadImg = new Image();
+        const newurl = getNewUrl()
         preloadImg.addEventListener("load", () => qrcode.style.setProperty('background-image', `url("${newurl}"), url("/public/invalid-content.png")`))
         preloadImg.addEventListener("error", () => qrcode.style.setProperty('background-image', `url("/public/invalid-content.png")`))
         preloadImg.src=newurl;
@@ -128,7 +134,9 @@ function updateQR (e) {
         setImgUrl(`url("/public/invalid-content.png")`)
     }
 }
-for (el of inputs) {
+
+// Add input listener to all inputs
+for (el of document.getElementsByTagName("input")) {
     el.addEventListener("input", updateQRdeb)
 }
 
diff --git a/src/views/index.ejs b/src/views/index.ejs
index ad4980b..49b2a3c 100644
--- a/src/views/index.ejs
+++ b/src/views/index.ejs
@@ -25,9 +25,8 @@ section div {
     row-gap: .5rem;
     column-gap: .5rem;
 }
-.maker > div:last-child {
-    grid-column-end: -1;
-}
+.maker > div:nth-last-child(1) { grid-column-end: -1; }
+.maker > div:nth-last-child(2) { grid-column-end: -2; }
 </style>
 <body>
     <section>
@@ -64,7 +63,7 @@ section div {
             </div>
             <div>
                 <label for="amount">Amount</label>
-                <input type="number" placeholder="00000001132" name="amount">
+                <input type="number" placeholder="00000001132" min="0" max="99999999999" name="amount">
             </div>
             <div>
                 <label for="code">Purpose code</label>
@@ -94,11 +93,62 @@ section div {
                 <label for="issuer-city">Issuer city</label>
                 <input type="text" placeholder="1000 Ljubljana" name="issuer-city">
             </div>
+            <div>
+                <button id="copyurl" type="button">Copy URL</button>
+            </div>
             <div>
                 <input type="submit" value="Create form">
             </div>
         </div>
     </section>
+<script>
+function val (name) { return document.getElementsByName(name)?.[0]?.value || "" }
+function getNewUrl () {
+    const qstring = [
+        ["client_name", val("client-name")],
+        ["client_address", val("client-address")],
+        ["client_city", val("client-city")],
+        ["amount", val("amount").padStart(11, "0")],
+        ["purpose_code", val("code")],
+        ["payment_purpose", val("purpose")],
+        ["iban", val("iban")],
+        ["reference", val("reference")],
+        ["issuer_name", val("issuer-name")],
+        ["issuer_address", val("issuer-address")],
+        ["issuer_city", val("issuer-city")],
+    ].map(v => `${v[0]}=${v[1]}`).join("&")
+    return `${window.location.origin}/api/qrcode?${qstring}`
+}
+const copyBtn = document.getElementById("copyurl")
+copyBtn.addEventListener("click", () => copyUrl())
+function copyUrl () {
+    try {
+        const dummy = document.createElement('input')
+        document.body.appendChild(dummy)
+        dummy.value = getNewUrl()
+        dummy.select()
+        document.execCommand('copy')
+        document.body.removeChild(dummy)
+
+        copyBtn.innerText = "Copied!"
+        copyBtn.classList.add("success")
+        setTimeout(() => {
+            copyBtn.innerText = "Copy URL"
+            copyBtn.classList.remove("success")
+        }, 750)
+
+    } catch (error) {
+        console.error(error)
+        copyBtn.innerText = "Failed!"
+        copyBtn.classList.add("error")
+        setTimeout(() => {
+            copyBtn.innerText = "Copy URL"
+            copyBtn.classList.remove("error")
+        }, 750)
+
+    }
+}
+</script>
     <section>
         <h1 id="api"><a href="#api">&#128279;</a> API</h1>
         <h4 id="api-qrcode"><a href="#api-qrcode">&#128279;</a> <code>GET /api/qrcode</code></h4>