From 8c4ed0b70e658199f058a06de232b7f16f98a2a1 Mon Sep 17 00:00:00 2001
From: Antonio De Lucreziis <antonio.delucreziis@gmail.com>
Date: Mon, 29 Aug 2022 01:31:59 +0200
Subject: [PATCH] Primi prototipi nella pagina di appunti condivisi

---
 _frontend/src/appunti-condivisi.jsx | 218 ++++++++++++++++++++--
 _public/style.css                   | 271 +++++++++++++++++++++++++++-
 _public/theme-dark.css              |   3 +-
 _views/appunti-condivisi.html       |  12 +-
 4 files changed, 480 insertions(+), 24 deletions(-)

diff --git a/_frontend/src/appunti-condivisi.jsx b/_frontend/src/appunti-condivisi.jsx
index 9820405..0e5142c 100644
--- a/_frontend/src/appunti-condivisi.jsx
+++ b/_frontend/src/appunti-condivisi.jsx
@@ -1,24 +1,212 @@
 import { render } from 'preact'
-import { useState } from 'preact/hooks'
+import { useEffect, useRef, useState } from 'preact/hooks'
 
-const Counter = ({}) => {
-    const [value, setValue] = useState(0)
+function randomHex(length = 16) {
+    return Array.from({ length }, () => Math.floor(Math.random() * 16).toString(16)).join('')
+}
+
+const useAutosizeTextarea = () => {
+    const [rows, setRows] = useState(1)
+
+    const onInput = e => {
+        const lines = e.target.value.split('\n')
+        console.log(lines)
+
+        setRows(lines.length)
+    }
+
+    return { rows, onInput }
+}
+
+const InputTags = ({ tags, setTags, availableTags }) => {
+    availableTags ??= []
+
+    const [id] = useState('tags-' + randomHex())
+
+    const nextRef = useRef()
+    const [nextText, setNextText] = useState('')
+
+    const onFocus = e => {
+        if (!e.target.closest('.tags .tag .remove')) {
+            nextRef.current?.focus()
+        }
+    }
+
+    const removeTag = tag => {
+        setTags(tags => tags.filter(t => t !== tag))
+    }
+
+    const addTag = tag => {
+        setTags(tags => [...tags, tag])
+    }
+
+    const onKeyDown = e => {
+        if (e.key === 'Backspace' && nextText.length === 0) {
+            removeTag(tags.at(-1))
+        }
 
-    const increment = () => {
-        setValue(value => value + 1)
+        const trimmed = nextText.trim()
+        if (e.key === 'Enter' && trimmed.length > 0) {
+            addTag(trimmed)
+            setNextText('')
+        }
     }
 
     return (
-        <p>
-            Counter: {value} <button onClick={increment}>+</button>
-        </p>
+        <div class="input-tags" onClick={onFocus}>
+            {tags.map(tag => (
+                <div class="tag">
+                    <span>{tag}</span>
+                    <span class="remove" onClick={() => removeTag(tag)}>
+                        <i class="fa-solid fa-remove"></i>
+                    </span>
+                </div>
+            ))}
+            <input
+                type="text"
+                ref={nextRef}
+                list={id}
+                value={nextText}
+                onInput={e => setNextText(e.target.value)}
+                onKeyDown={onKeyDown}
+            />
+            <datalist id={id}>
+                {availableTags.map(({ id, label }) => (
+                    <option value={id} label={label} />
+                ))}
+            </datalist>
+        </div>
+    )
+}
+
+const App = ({}) => {
+    const descriptionTextareaProps = useAutosizeTextarea()
+
+    const [tags, setTags] = useState(['Geometria 1', 'Fortuna', 'Frigerio', '2013/2014'])
+
+    const availableTags = [
+        ...Array.from({ length: 10 }, (_, i) => {
+            const year = new Date().getFullYear() - i
+
+            return { id: `${year}/${year + 1}`, label: `Anno Accademico ${year}/${year + 1}` }
+        }),
+        { id: 'G1', label: 'Geometria 1' },
+        { id: 'G2', label: 'Geometria 2' },
+        { id: 'ETI', label: 'Elementi di Teoria degli Insiemi' },
+        { id: 'ETA', label: 'Elementi di Topologia Algebrica' },
+        { id: 'Analisi 1', label: 'Analisi 1' },
+        { id: 'Aritmetica', label: 'Aritmetica' },
+        { id: 'Programmazione', label: 'Programmazione' },
+        { id: 'Fisica 1', label: 'Fisica 1' },
+        { id: 'Steffe 1', label: 'Laboratorio di Comunicazione Mediante Calcolatore' },
+    ]
+
+    return (
+        <>
+            <div class="upload-region">
+                <span>Trascina qui un PDF oppure usa il tasto sottostante</span>
+                <button>Carica PDF</button>
+            </div>
+            <div class="dispense-table">
+                <div class="edit header"></div>
+                <div class="name header">Nome</div>
+                <div class="tags header">Tags</div>
+                <div class="status header">Stato</div>
+
+                <div class="separator"></div>
+
+                <div class="edit">
+                    <button class="icon flat">
+                        <i class="fa-solid fa-angle-down"></i>
+                    </button>
+                </div>
+                <div class="name">Appunti di Geometria 1</div>
+                <div class="tags">
+                    <div class="tag">Geometria 1</div>
+                    <div class="tag">Prof. 1</div>
+                    <div class="tag">2016/2017</div>
+                </div>
+                <div class="status approved">
+                    <i class="fa-solid fa-check"></i>
+                </div>
+
+                <div class="separator"></div>
+
+                <div class="expanded">
+                    <div class="edit-close">
+                        <button class="icon flat">
+                            <i class="fa-solid fa-angle-up"></i>
+                        </button>
+                    </div>
+                    <div class="edit-container">
+                        <p>
+                            Qui puoi modificare le varie proprietà della dispensa, ricorda che se
+                            carichi un nuovo PDF diverso dal precedente dovrà essere nuovamente
+                            sottoposto a approvazione quindi inizialmente scomparirà dall'elenco
+                            principale.
+                        </p>
+                        <div class="edit-form">
+                            <div class="label">Nome</div>
+                            <input type="text" placeholder="Nome" value="Mezzedimi" />
+                            <div class="label">Descrizione</div>
+                            <textarea
+                                placeholder="Descrizione..."
+                                value="Best dispensa di Geometria 1 ever written anche se non in LaTeX"
+                                {...descriptionTextareaProps}
+                            ></textarea>
+                            <div class="label">Tags</div>
+                            <InputTags {...{ tags, setTags, availableTags }} />
+                            <div class="label">PDF</div>
+                            <input type="file" value="/mezzedimi.pdf" accept="application/pdf" />
+
+                            <div class="right">
+                                <button class="primary">Salva</button>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+
+                <div class="separator"></div>
+
+                <div class="edit">
+                    <button class="icon flat">
+                        <i class="fa-solid fa-angle-down"></i>
+                    </button>
+                </div>
+                <div class="name pending">Appunti di Geometria 2</div>
+                <div class="tags">
+                    <div class="tag">Geometria 2</div>
+                    <div class="tag">Prof. 2</div>
+                    <div class="tag">2017/2018</div>
+                    <div class="tag">Tanti Tag</div>
+                    <div class="tag">Tanti Tag</div>
+                    <div class="tag">Tanti Tag</div>
+                    <div class="tag">Tanti Tag</div>
+                    <div class="tag">Tanti Tag</div>
+                    <div class="tag">Tanti Tag</div>
+                </div>
+                <div class="status pending" title="In attesa di approvazione...">
+                    <i class="fas fa-hourglass"></i>
+                </div>
+
+                <div class="separator"></div>
+
+                <div class="edit">
+                    <button class="icon flat">
+                        <i class="fa-solid fa-angle-down"></i>
+                    </button>
+                </div>
+                <div class="name rejected">F1Le SuP3R LeGaLe</div>
+                <div class="tags">
+                    <div class="tag">Foo</div>
+                    <div class="tag">Bar</div>
+                </div>
+                <div class="status rejected">
+                    <i class="fa-solid fa-xmark"></i>
+                </div>
+            </div>
+        </>
     )
 }
 
-render(
-    <>
-        <h1>Preact is Working!</h1>
-        <Counter />
-    </>,
-    document.querySelector('#app')
-)
+render(<App />, document.querySelector('#app'))
diff --git a/_public/style.css b/_public/style.css
index 50dfc32..0652002 100644
--- a/_public/style.css
+++ b/_public/style.css
@@ -511,6 +511,17 @@ button.icon {
     width: 2rem;
 }
 
+button.flat {
+    border: none;
+    background: none;
+    box-shadow: none;
+}
+
+button.flat:hover {
+    background: var(--bg-darker-2);
+    box-shadow: none;
+}
+
 select {
     font-family: var(--font-sf);
     font-weight: var(--font-weight-medium);
@@ -539,7 +550,9 @@ select {
 /* Text Fields */
 
 input[type='text'],
-input[type='password'] {
+input[type='file'],
+input[type='password'],
+textarea {
     border: none;
     background: none;
 
@@ -560,6 +573,18 @@ input[type='password'] {
     font-weight: var(--font-weight-normal);
 }
 
+textarea {
+    height: unset;
+    min-height: 2rem;
+
+    padding: 0.5rem;
+}
+
+input[type='file'] {
+    padding: 0.25rem 0.5rem;
+    height: unset;
+}
+
 input[type='password'] {
     font-family: caption;
 }
@@ -845,6 +870,250 @@ form .field-set input {
     height: calc(var(--size) * 1rem);
 }
 
+/* Appunti Condivisi */
+
+.page-appunti-condivisi .main {
+    padding: 0 1rem 6rem;
+    max-width: 100ch;
+}
+
+.page-appunti-condivisi .upload-region {
+    padding: 2rem;
+
+    height: 30vh;
+
+    border: 2px dashed var(--bg-darker-4);
+    border-radius: 0.5rem;
+
+    display: flex;
+    align-items: center;
+    justify-content: center;
+
+    flex-direction: column;
+
+    gap: 1rem;
+}
+
+.page-appunti-condivisi #app {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+
+    gap: 3rem;
+}
+
+.page-appunti-condivisi .dispense-table {
+    display: grid;
+    grid-template-columns: auto 1fr minmax(auto, 50ch) auto;
+
+    background: var(--bg-dark);
+    border-radius: 4px;
+    border: 1px solid var(--bg-darker-2);
+    box-shadow: var(--shadow-1);
+}
+
+.page-appunti-condivisi .dispense-table .pending {
+    color: royalblue;
+}
+
+.page-appunti-condivisi .dispense-table .rejected {
+    color: darkred;
+}
+
+.page-appunti-condivisi .dispense-table .header {
+    font-weight: var(--font-weight-medium);
+}
+
+.page-appunti-condivisi .dispense-table .separator {
+    grid-column: span 4;
+    border-bottom: 1px solid var(--bg-darker-2);
+}
+
+.page-appunti-condivisi .dispense-table .edit,
+.page-appunti-condivisi .dispense-table .name,
+.page-appunti-condivisi .dispense-table .tags,
+.page-appunti-condivisi .dispense-table .status {
+    padding: 1rem 0 1rem 1rem;
+
+    display: flex;
+    align-items: center;
+}
+
+.page-appunti-condivisi .dispense-table .tags {
+    flex-wrap: wrap;
+    gap: 0.25rem;
+}
+
+.page-appunti-condivisi .dispense-table .status {
+    place-self: center;
+
+    padding: 1rem 1.25rem 1rem 2rem;
+}
+
+.page-appunti-condivisi .dispense-table .expanded {
+    grid-column: span 4;
+
+    display: grid;
+    grid-template-columns: auto 1fr;
+}
+
+.page-appunti-condivisi .dispense-table .edit-container {
+    display: flex;
+    flex-direction: column;
+    gap: 1rem;
+
+    padding: 1rem 1rem 1rem 0;
+}
+
+.page-appunti-condivisi .dispense-table .edit-close {
+    padding: 1rem;
+}
+
+.page-appunti-condivisi .dispense-table .edit-form {
+    display: grid;
+
+    grid-template-columns: auto 1fr;
+    gap: 0.5rem 1rem;
+
+    align-items: center;
+}
+
+.page-appunti-condivisi .dispense-table .edit-form > .label {
+    height: 2rem;
+
+    align-self: flex-start;
+
+    display: flex;
+    align-items: center;
+
+    font-weight: var(--font-weight-medium);
+}
+
+.page-appunti-condivisi .dispense-table .edit-form > textarea {
+    resize: vertical;
+    overflow-y: hidden;
+}
+
+.page-appunti-condivisi .dispense-table .edit-form > .right {
+    grid-column: span 2;
+
+    display: flex;
+    justify-content: end;
+
+    padding-top: 0.5rem;
+}
+
+.page-appunti-condivisi .input-tags {
+    padding: 0.5rem;
+    min-height: 2rem;
+
+    font-size: 17px;
+
+    background: var(--text-input-bg);
+    color: var(--fg);
+
+    border-radius: 4px;
+    border: 1px solid var(--bg-darker-2);
+    box-shadow: 0 0 8px 0 #00000020;
+
+    display: flex;
+    flex-wrap: wrap;
+    gap: 0.5rem;
+
+    align-items: center;
+}
+
+.page-appunti-condivisi .input-tags .tag {
+    user-select: none;
+
+    height: 1.5rem;
+    border-radius: calc(1.5rem / 2);
+    padding: 0 calc(1.5rem / 2);
+
+    background: var(--bg-darker-2);
+    color: var(--card-date);
+
+    font-size: 15px;
+
+    display: flex;
+    align-items: center;
+    justify-content: center;
+
+    gap: 0.25rem;
+}
+
+.page-appunti-condivisi .input-tags .tag .remove {
+    cursor: pointer;
+}
+
+.page-appunti-condivisi .input-tags .tag .remove:hover {
+    color: var(--card-content);
+}
+
+.page-appunti-condivisi .input-tags input[type='text'] {
+    box-shadow: none;
+    border: none;
+    background: none;
+
+    height: 1.5rem;
+
+    min-height: unset;
+    max-width: 10rem;
+
+    display: inline-block;
+}
+
+/* Animazioni */
+
+/* Pending hourglass with a bit of overshoot */
+/* @keyframes pending-rotate {
+    0% {
+        transform: rotate(0deg);
+    }
+    25% {
+        transform: rotate(0deg);
+    }
+    30% {
+        transform: rotate(-5deg);
+    }
+    45% {
+        transform: rotate(190deg);
+    }
+    50% {
+        transform: rotate(180deg);
+    }
+    60% {
+        transform: rotate(175deg);
+    }
+    75% {
+        transform: rotate(185deg);
+    }
+    95% {
+        transform: rotate(370deg);
+    }
+    100% {
+        transform: rotate(360deg);
+    }
+} */
+
+@keyframes pending-rotate {
+    0% {
+        transform: rotate(0deg);
+    }
+    30% {
+        transform: rotate(0deg);
+    }
+    50% {
+        transform: rotate(180deg);
+    }
+    80% {
+        transform: rotate(180deg);
+    }
+    100% {
+        transform: rotate(360deg);
+    }
+}
+
 @keyframes rotate {
     0% {
         transform: rotate(0deg);
diff --git a/_public/theme-dark.css b/_public/theme-dark.css
index 2048d8e..9cadfa8 100644
--- a/_public/theme-dark.css
+++ b/_public/theme-dark.css
@@ -59,7 +59,8 @@ body.dark-mode {
     filter: drop-shadow(0 0 4px rgba(0, 0, 0, 0.4));
 }
 
-.dark-mode input[type] {
+.dark-mode input[type],
+.dark-mode textarea {
     background: #4b4342;
 }
 
diff --git a/_views/appunti-condivisi.html b/_views/appunti-condivisi.html
index 9295a90..f2a01d5 100644
--- a/_views/appunti-condivisi.html
+++ b/_views/appunti-condivisi.html
@@ -3,12 +3,10 @@
 {{define "title"}}Condivisione Appunti &bull; PHC{{end}}
 
 {{define "body"}}
-<section>
-    <h1>
-        <i class="fas fa-book"></i>
-        Condivisione Appunti
-    </h1>
-    <div id="app"></div>
-</section>
+<h1>
+    <i class="fas fa-book"></i>
+    Condivisione Appunti
+</h1>
+<div id="app"></div>
 <script src="/public/appunti-condivisi.min.js"></script>
 {{end}}
\ No newline at end of file