2 files changed, 367 insertions, 0 deletions
diff --git a/src/web/components/submission/Submission.css b/src/web/components/submission/Submission.css
new file mode 100644
index 0000000..a170132
--- /dev/null
+++ b/src/web/components/submission/Submission.css
@@ -0,0 +1,146 @@
+.container {
+    position: absolute;
+    inset: 0;
+
+    width: 100%;
+    height: 100%;
+    padding: 0em 1em;
+
+    display: flex;
+    flex-direction: column;
+    justify-content: flex-end;
+    align-items: flex-end;
+
+    visibility: hidden;
+    overflow: hidden;
+}
+
+.card {
+    --submission-height: 37em;
+
+    position: relative;
+
+    width: 100%;
+    padding: 1em;
+    height: var(--submission-height);
+
+    color: var(--black-98);
+    background-color: var(--black-10);
+    border-radius: 0;
+    border-top: 0.25em solid var(--brand-80);
+    box-shadow: unset;
+
+    visibility: initial;
+    translate: 0 var(--submission-height);
+
+    transition: translate var(--transition-time) ease-in-out;
+}
+.cardActive {
+    translate: 0 0;
+}
+
+.tabContainer {
+    font-size: 5em;
+
+    position: absolute;
+    top: -0.5em;
+    right: 0em;
+
+    width: var(--tab-size);
+    height: 0.5em;
+
+    overflow: hidden;
+}
+.tab {
+    --tab-size: 1em;
+    width: var(--tab-size);
+    height: var(--tab-size);
+
+    display: flex;
+    flex-direction: column;
+    justify-content: center;
+    align-items: center;
+
+    padding-bottom: calc(0.5 * var(--tab-size));
+
+    border-radius: 1em;
+    background-color: var(--brand-80);
+    cursor: pointer;
+}
+.tab:hover {
+    color: white;
+}
+.tabIcon {
+    position: absolute;
+
+    width: calc(0.4 * var(--tab-size));
+    height: calc(0.4 * var(--tab-size));
+
+    background-color: transparent;
+    opacity: 100%;
+
+    transition: opacity var(--transition-time) linear;
+}
+.tabIconHidden {
+    opacity: 0%;
+}
+
+.card h1 {
+    font-size: 1.8em;
+    font-weight: bolder;
+    text-align: center;
+}
+
+form {
+    display: flex;
+    flex-direction: column;
+}
+.contentsInput textarea {
+    min-height: 15em;
+    border-radius: 1em;
+}
+.fileInput input {
+    border: unset;
+    margin-bottom: 0;
+}
+
+.submissionButton {
+    margin: 0.5rem auto 0;
+    padding: 0.25em 2em;
+    min-height: 2.3em;
+    min-width: 8em;
+
+    display: flex;
+    justify-content: center;
+    align-items: center;
+
+    font-size: 1.25em;
+}
+
+.error {
+    margin-top: 0.5em;
+    min-height: 2em;
+
+    display: flex;
+    justify-content: center;
+    align-items: center;
+
+    visibility: hidden;
+}
+.errorActive{ 
+    visibility: visible;
+}
+.error p {
+    padding: 0.5em 1em;
+
+    color: var(--brand-80);
+    background-color: var(--black-15);
+    border-radius: 1em;
+    font-style: italic;
+    font-weight: 300;
+    text-transform: uppercase;
+}
+
+.loading {
+    filter: invert(100%);
+}
+\ No newline at end of file
diff --git a/src/web/components/submission/Submission.jsx b/src/web/components/submission/Submission.jsx
new file mode 100644
index 0000000..9fc080e
--- /dev/null
+++ b/src/web/components/submission/Submission.jsx
@@ -0,0 +1,221 @@
+import React, {useEffect, useState, useContext} from "react";
+import {useLocation} from "react-router-dom";
+import {encode} from "base64-arraybuffer";
+
+import {getSubreactFromLocation} from "helpers/Location.jsx";
+import {UserContext} from "contexts/UserContext.jsx";
+import {StateContext} from "contexts/StateContext.jsx";
+
+import Card from "components/card/Card.jsx";
+import Button from "components/button/Button.jsx";
+import Input from "components/input/Input.jsx";
+import Loading from "components/loading/Loading.jsx";
+
+import styles from "./Submission.css";
+import {FontAwesomeIcon} from "@fortawesome/react-fontawesome";
+import {faMinus, faPlus} from "@fortawesome/free-solid-svg-icons";
+import {getFieldError, correctFieldAnimate, isSupportedExtension} from "helpers/Input.jsx";
+
+const maxFileSize = 4 * 1000 * 1000; // 4MB max size
+
+const validateTitle = (title) => getFieldError(title?.target?.value, [3, 128]);
+const validateContents = (contents) => getFieldError(contents?.target?.value, [5, 3000]);
+function validateFile(file) {
+    const files = file?.target?.files;
+    if (files == null || files.length == 0) {
+        return "Required";
+    }
+    const f = files.item(0);
+    if (f.size > maxFileSize) { // 4MB
+        return "File too large, exceeded 4MB";
+    }
+    const ext = f.name.split(".")?.pop()?.toLowerCase();
+    if (!isSupportedExtension(ext)) {
+        return "Unsupported image extension";
+    }
+    return null;
+}
+
+function ErrorMessage({message}) {
+    return (
+        <div className={styles.error + (message != null ? " " + styles.errorActive : "")}>
+            <p>
+                {message}
+            </p>
+        </div>
+    );
+}
+
+function RequestButton({promise, setPromise, title, setTitle, contents, setContents,
+                        file, setFile, setError, className, children, setSubmissionActive, subreact}) {
+    const onClick = (event) => {
+        event.preventDefault();
+        if (promise != null) {
+            return;
+        }
+        setError(null);
+
+        const titleErrors = validateTitle(title);
+        const contentsErrors = validateContents(contents);
+        const fileErrors = validateFile(file);
+        if (titleErrors != null || contentsErrors != null || fileErrors != null) {
+            correctFieldAnimate(title, setTitle, titleErrors);
+            correctFieldAnimate(contents, setContents, contentsErrors);
+            correctFieldAnimate(file, setFile, fileErrors);
+            return;
+        }
+        
+        setPromise(file.target.files.item(0).arrayBuffer()
+            .then((buffer) => {
+                const init = {
+                    method: "POST",
+                    headers: {
+                        'Content-Type': "application/json"
+                    },
+                    body: JSON.stringify({
+                        "title": title.target.value,
+                        "contents": contents.target.value,
+                        "subreact": subreact,
+                        "file": encode(buffer),
+                    }),
+                    referrer: "same-origin",
+                };
+                return fetch("/api/post", init);
+            })
+            .then((response) => {
+                if (response.ok) {
+                    setSubmissionActive(false);
+                    setContents(null);
+                    setTitle(null);
+                    setFile(null);
+                    return;
+                }
+
+                return response.json()
+                    .then((json) => {
+                        if ("error" in json) {
+                            throw new Error(json.error);
+                        }
+                        throw new Error("unexpected data received");
+                    });
+            })
+            .catch((error) => {
+                console.log(error);
+                setError(error.message);
+            })
+            .finally(() => {
+                setPromise(null);
+            }));
+    }
+
+    return (
+        <Button className={className} onClick={onClick}>
+            {promise == null ? children : <Loading className={styles.loading} />}
+        </Button>
+    );
+}
+
+function TabIcon({icon, submissionActive, isDefault}) {
+    return (
+        <FontAwesomeIcon icon={icon} 
+            className={styles.tabIcon + 
+                (!isDefault == submissionActive ? " " + styles.tabIconHidden : "")} />
+    );
+}
+
+function Tab({submissionActive, setSubmissionActive, user, setLoginActive}) {
+    const [animate, setAnimate] = useState(false);
+
+    const onClick = () => {
+        if (user === null) {
+            setLoginActive(true);
+            return;
+        }
+        setAnimate(true);
+        setSubmissionActive(!submissionActive);
+    };
+
+    return (
+        <div className={styles.tabContainer}>
+            <div className={styles.tab + (animate ? " " + styles.fade : "")} onClick={onClick}>
+                <TabIcon icon={faMinus} submissionActive={submissionActive} isDefault />
+                <TabIcon icon={faPlus} submissionActive={submissionActive} />
+            </div>
+        </div>
+    );
+}
+
+function SubmissionForm({setSubmissionActive, setError, subreact}) {
+    const [promise, setPromise] = useState(null);
+    const [title, setTitle] = useState(null);
+    const [contents, setContents] = useState(null);
+    const [file, setFile] = useState(null);
+
+    return (
+        <form>
+            <Input type="text" 
+                id="title"
+                title="Title"
+                field={title}
+                setField={setTitle}
+                validateField={validateTitle} />
+
+            <Input className={styles.contentsInput}
+                inputType="textarea"
+                type="text" 
+                title="Contents"
+                field={contents}
+                setField={setContents}
+                validateField={validateContents} />
+
+            <Input className={styles.fileInput}
+                inputType="file"
+                type="file"
+                title="Upload image"
+                field={file}
+                setField={setFile}
+                validateField={validateFile}/>
+
+            <RequestButton className={styles.submissionButton}
+                setError={setError} setSubmissionActive={setSubmissionActive}
+                promise={promise} setPromise={setPromise}
+                title={title} setTitle={setTitle}
+                contents={contents} setContents={setContents}
+                file={file} setFile={setFile} subreact={subreact}>
+
+                Submit
+            </RequestButton>
+        </form>
+    );
+}
+
+export default function Submission({active, setActive}) {
+    const [error, setError] = useState(null);
+
+    const location = useLocation();
+    const subreact = getSubreactFromLocation(location);
+
+    const [user] = useContext(UserContext);
+
+    const [state, setState] = useContext(StateContext);
+    const setLoginActive = (active) => {setState({...state, loginActive: active})};
+
+    // If our subreact is the front page, disable our ability to post. Posting
+    // should be done to the main subreact.
+    useEffect(() => {
+        if (subreact === "") {
+            setActive(false);
+        }
+    }, [location]);
+
+    return (
+        <div className={styles.container}>
+            <Card className={styles.card + (active ? " " + styles.cardActive : "")}>
+                <Tab submissionActive={active} setSubmissionActive={setActive} user={user} setLoginActive={setLoginActive} />
+                <h1>Make a new submission</h1>
+                <ErrorMessage message={error} />
+                <SubmissionForm setSubmissionActive={setActive} setError={setError} subreact={subreact}/>
+            </Card>
+        </div>
+    );
+}
+\ No newline at end of file