diff --git a/src/main/resources/static/app.js b/src/main/resources/static/app.js index a5e9792..7415a42 100644 --- a/src/main/resources/static/app.js +++ b/src/main/resources/static/app.js @@ -1,172 +1,547 @@ -const API = location.hostname === "localhost" ? "http://localhost:8080" : location.origin; +/* TagLens frontend — vanilla JS, no build step. + Served by Spring Boot from /static, so every call is same-origin. */ -const gallery = document.getElementById("gallery"); +const $ = (id) => document.getElementById(id); -async function loadImages(search = "") { +const MAX_BYTES = 10 * 1024 * 1024; +const URL_TTL_MS = 14 * 60 * 1000; // backend presigned links last 15 min +const POLL_EVERY_MS = 3000; +const POLL_MAX_TRIES = 25; // ~75 s, then stop waiting for the AI - let url = API + "/images"; - - if (search !== "") - url += "?search=" + encodeURIComponent(search); - - const response = await fetch(url); - - const images = await response.json(); - - gallery.innerHTML = ""; +// The AI is restricted to these 11 colour names (see TaggingService prompt) +const COLORS = { + black: "#111111", blue: "#2f6bff", brown: "#8a5a35", gray: "#9a9aa5", green: "#2fb36b", + orange: "#ff8a1f", pink: "#ff6fb1", purple: "#8b4dff", red: "#ee3b3b", white: "#f7f7f7", yellow: "#ffd426", +}; - images.forEach(createCard); +const state = { + me: null, + search: "", + explore: [], + library: [], + myIds: new Set(), + urls: new Map(), // id -> { url, at } | Promise + pollTimer: null, + pollTries: 0, + authMode: "login", + openId: null, +}; +/* ---------- tiny helpers ---------- */ + +// Build DOM without innerHTML — tags come from an AI and search text from users. +function h(tag, props = {}, ...kids) { + const el = document.createElement(tag); + for (const [k, v] of Object.entries(props)) { + if (v == null || v === false) continue; + if (k === "class") el.className = v; + else if (k === "style") el.style.cssText = v; + else if (k.startsWith("on")) el.addEventListener(k.slice(2), v); + else el.setAttribute(k, v === true ? "" : v); + } + for (const kid of kids.flat()) { + if (kid == null || kid === false) continue; + el.append(kid.nodeType ? kid : document.createTextNode(kid)); + } + return el; } -function createCard(image) { - - const card = document.createElement("div"); +function toast(msg, type = "") { + const t = h("div", { class: "toast " + type }, msg); + $("toasts").append(t); + setTimeout(() => t.remove(), 3800); +} - card.className = "card"; +function fmtSize(bytes) { + if (bytes == null) return "—"; + if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(0) + " KB"; + return (bytes / 1024 / 1024).toFixed(1) + " MB"; +} - card.innerHTML = ` +const list = (v) => (Array.isArray(v) ? v : []); +const objectsOf = (img) => list(img.tags?.objects); +const sceneOf = (img) => list(img.tags?.tags); +const colorsOf = (img) => list(img.tags?.colors); +const hasTags = (img) => objectsOf(img).length + sceneOf(img).length + colorsOf(img).length > 0; - +async function api(path, opts = {}) { + const res = await fetch(path, { credentials: "same-origin", ...opts }); + return res; +} -
+// Calls that need a login: a dead session shows up as 401 (or 403 from Spring's default entry point) +async function authed(path, opts) { + const res = await api(path, opts); + if (res.status === 401 || res.status === 403) { + sessionExpired(); + throw new Error("auth"); + } + return res; +} -

${image.filename}

+function sessionExpired() { + if (!state.me) return; + setUser(null); + toast("Session expired — please log in again", "error"); + openAuth("login"); +} -
+/* ---------- theme ---------- */ - ${ - image.tags.tags - .map(tag=>`${tag}`) - .join("") +function applyTheme(theme) { + document.documentElement.dataset.theme = theme; + try { localStorage.setItem("taglens-theme", theme); } catch { /* private mode */ } +} +(function initTheme() { + let saved = null; + try { saved = localStorage.getItem("taglens-theme"); } catch { /* ignore */ } + const prefersLight = matchMedia("(prefers-color-scheme: light)").matches; + document.documentElement.dataset.theme = saved || (prefersLight ? "light" : "dark"); +})(); +$("themeBtn").onclick = () => + applyTheme(document.documentElement.dataset.theme === "dark" ? "light" : "dark"); + +/* ---------- routing ---------- */ + +function showView(name) { + if (name === "library" && !state.me) { + openAuth("login"); + name = "explore"; } + document.querySelectorAll(".view").forEach((v) => (v.hidden = v.id !== "view-" + name)); + document.querySelectorAll(".tab").forEach((t) => t.classList.toggle("active", t.dataset.view === name)); + if (location.hash !== "#" + name) history.replaceState(null, "", "#" + name); + if (name === "library") loadLibrary(); +} +document.querySelectorAll(".tab").forEach((t) => (t.onclick = () => showView(t.dataset.view))); + +/* ---------- AI visuals ---------- */ + +// A gradient made from the colours the AI detected — used where no photo is available. +function paletteArt(img) { + const hexes = colorsOf(img).map((c) => COLORS[String(c).toLowerCase()]).filter(Boolean); + let bg; + if (hexes.length === 0) bg = "linear-gradient(135deg, var(--surface-2), var(--border))"; + else if (hexes.length === 1) bg = `linear-gradient(135deg, ${hexes[0]}, color-mix(in srgb, ${hexes[0]} 40%, #000))`; + else bg = `linear-gradient(135deg, ${hexes.join(", ")})`; + return h("div", { class: "palette-art", style: `background:${bg}` }); +} -
- -
- - `; +function chip(label, kind) { + const text = String(label); + const kids = []; + if (kind === "color") kids.push(h("i", { class: "dot", style: `background:${COLORS[text.toLowerCase()] || "#888"}` })); + kids.push(text); + return h("button", { class: "chip " + kind, type: "button", title: `Search “${text}”`, onclick: (e) => { e.stopPropagation(); searchFor(text); } }, ...kids); +} - gallery.appendChild(card); +function chipsFor(img, limit = Infinity) { + const all = [ + ...objectsOf(img).map((t) => [t, "object"]), + ...sceneOf(img).map((t) => [t, "scene"]), + ...colorsOf(img).map((t) => [t, "color"]), + ]; + const shown = all.slice(0, limit).map(([t, k]) => chip(t, k)); + if (all.length > limit) shown.push(h("span", { class: "chip more" }, `+${all.length - limit}`)); + return h("div", { class: "chips" }, ...shown); +} +/* ---------- image URLs (owner only) ---------- */ + +function getUrl(id) { + const hit = state.urls.get(id); + if (hit instanceof Promise) return hit; + if (hit && Date.now() - hit.at < URL_TTL_MS) return Promise.resolve(hit.url); + const p = authed("/images/" + id) + .then((r) => (r.ok ? r.json() : Promise.reject(new Error("no url")))) + .then((j) => { + state.urls.set(id, { url: j.url, at: Date.now() }); + return j.url; + }) + .catch((e) => { state.urls.delete(id); throw e; }); + state.urls.set(id, p); + return p; } -document - .getElementById("searchBtn") - .onclick = ()=>{ +const lazy = new IntersectionObserver((entries) => { + for (const e of entries) { + if (!e.isIntersecting) continue; + lazy.unobserve(e.target); + const slot = e.target; + getUrl(slot.dataset.id).then((url) => { + const im = h("img", { alt: "", src: url, loading: "lazy" }); + im.onload = () => slot.querySelector(".palette-art")?.remove(); + slot.prepend(im); + }).catch(() => {}); + } +}, { rootMargin: "200px" }); - loadImages( - document.getElementById("searchInput").value - ); +/* ---------- cards ---------- */ -}; +function card(img, mine) { + const tagged = hasTags(img); + const thumb = h("div", { class: "thumb", "data-id": img.id }, paletteArt(img)); -document - .getElementById("homeBtn") - .onclick = ()=>loadImages(); + if (mine) lazy.observe(thumb); + else thumb.append(h("span", { class: "thumb-label" }, "Preview is owner-only")); + if (tagged) thumb.append(h("span", { class: "corner" }, h("i", { class: "spark" }), "AI tagged")); -document - .getElementById("uploadBtn") - .onclick = async ()=>{ + const body = h("div", { class: "body" }, + tagged + ? chipsFor(img, 6) + : h("div", { class: "analyzing-line" }, h("i", { class: "spark" }), + mine && state.pollTries < POLL_MAX_TRIES ? "AI is analyzing your image…" : "No AI tags yet"), + h("div", { class: "row" }, h("span", {}, (img.contentType || "").replace("image/", "").toUpperCase()), h("span", {}, fmtSize(img.fileSize))), + ); - const file = - document.getElementById("imageInput").files[0]; + return h("article", { + class: "card" + (!tagged && mine && state.pollTries < POLL_MAX_TRIES ? " analyzing" : ""), + tabindex: "0", + onclick: () => openDetail(img, mine), + onkeydown: (e) => { if (e.key === "Enter") openDetail(img, mine); }, + }, thumb, body); +} - if(!file) +function renderGrid(el, images, mine, emptyTitle, emptyText) { + el.replaceChildren(); + if (!images.length) { + el.append(h("div", { class: "empty" }, h("b", {}, emptyTitle), emptyText)); return; - - const form = new FormData(); - - form.append("file",file); - - const response = await fetch(API+"/images/upload",{ - - method:"POST", - - credentials:"include", - - body:form - - }); - - if(response.ok){ - - alert("Uploaded!"); - - loadImages(); - } + images.forEach((img, i) => { + const c = card(img, mine); + c.style.animationDelay = Math.min(i, 12) * 25 + "ms"; + el.append(c); + }); +} - else{ - - alert("Upload failed"); +function skeletons(el, n = 8) { + el.replaceChildren(...Array.from({ length: n }, () => h("div", { class: "skeleton" }))); +} +/* ---------- explore (GET /images, public) ---------- */ + +async function loadExplore() { + skeletons($("exploreGrid")); + const q = state.search.trim(); + if (state.me) await loadLibrary({ quiet: true }); // need my ids: only the owner can view a photo + try { + const res = await api("/images" + (q ? "?search=" + encodeURIComponent(q) : "")); + if (!res.ok) throw new Error(res.status); + // Only show images whose photo the viewer is allowed to see (their own) + state.explore = (await res.json()).filter((i) => state.myIds.has(i.id)); + } catch { + $("exploreGrid").replaceChildren(h("div", { class: "empty" }, h("b", {}, "Couldn't load images"), "Check your connection and try again.")); + return; } + $("exploreTitle").textContent = q ? `AI tag matches for “${q}” (${state.explore.length})` : "Latest uploads"; + $("clearSearch").hidden = !q; + renderGrid($("exploreGrid"), state.explore, true, + !state.me ? "Log in to see your images" : q ? "Nothing matches that tag" : "No images yet", + !state.me ? "Photos are private — only their owner can view them." : q ? "Try a simpler word, like an object or colour." : "Upload your first image from My Library."); + // mark ones that are mine so their photo shows + if (state.me) markMine(); + if (!q) renderTrending(); +} -}; - - -async function login(email,password){ - - await fetch(API+"/auth/login",{ - - method:"POST", - - credentials:"include", - - headers:{ - - "Content-Type":"application/json" - - }, - - body:JSON.stringify({ - - email, - - password - - }) - +// Public cards for images I own can show the real photo +function markMine() { + document.querySelectorAll("#exploreGrid .thumb").forEach((t) => { + if (state.myIds.has(t.dataset.id) && !t.querySelector("img")) { + t.querySelector(".thumb-label")?.remove(); + lazy.observe(t); + } }); +} +function renderTrending() { + const counts = new Map(); + for (const img of state.explore) + for (const t of [...objectsOf(img), ...sceneOf(img)]) counts.set(t, (counts.get(t) || 0) + 1); + const top = [...counts].sort((a, b) => b[1] - a[1]).slice(0, 8); + $("trending").hidden = top.length === 0; + $("trendingChips").replaceChildren(...top.map(([t]) => chip(t, "object"))); } -async function register(email,password){ +function searchFor(term) { + state.search = term; + $("searchInput").value = term; + closeDetail(); + showView("explore"); + loadExplore(); + window.scrollTo({ top: 0, behavior: "smooth" }); +} +$("searchForm").onsubmit = (e) => { e.preventDefault(); state.search = $("searchInput").value; loadExplore(); }; +$("clearSearch").onclick = () => { $("searchInput").value = ""; state.search = ""; loadExplore(); }; + +/* ---------- library (GET /images/my) ---------- */ + +async function loadLibrary({ quiet = false } = {}) { + if (!state.me) return; + if (!quiet) skeletons($("libraryGrid"), 4); + try { + const res = await authed("/images/my"); + if (!res.ok) throw new Error(res.status); + state.library = await res.json(); + } catch (e) { + if (e.message !== "auth") $("libraryGrid").replaceChildren(h("div", { class: "empty" }, h("b", {}, "Couldn't load your library"), "Try again in a moment.")); + return; + } + state.myIds = new Set(state.library.map((i) => i.id)); + renderLibrary(); + managePolling(); + markMine(); +} - await fetch(API+"/auth/register",{ +function renderLibrary() { + renderGrid($("libraryGrid"), state.library, true, "Your library is empty", "Drop your first image above — the AI will tag it in seconds."); + renderStats(); + // keep an open detail panel in sync with fresh tags + if (state.openId && $("detail").open) { + const img = state.library.find((i) => i.id === state.openId); + if (img) fillDetail(img, true); + } +} - method:"POST", +function renderStats() { + const tagged = state.library.filter(hasTags); + const tagCount = tagged.reduce((n, i) => n + objectsOf(i).length + sceneOf(i).length, 0); + const colorFreq = new Map(); + tagged.forEach((i) => colorsOf(i).forEach((c) => colorFreq.set(c, (colorFreq.get(c) || 0) + 1))); + const topColors = [...colorFreq].sort((a, b) => b[1] - a[1]).slice(0, 3); + const total = state.library.reduce((n, i) => n + (i.fileSize || 0), 0); + + $("stats").replaceChildren( + h("span", { class: "stat" }, h("b", {}, state.library.length), " images"), + h("span", { class: "stat" }, h("i", { class: "spark" }), " ", h("b", {}, tagCount), " AI tags"), + h("span", { class: "stat" }, h("b", {}, fmtSize(total))), + topColors.length && h("span", { class: "stat" }, "Palette ", + ...topColors.map(([c]) => h("i", { class: "dot", title: c, style: `background:${COLORS[c] || "#888"}` }))), + ); +} - headers:{ +// The AI tags arrive asynchronously after upload (204 returns immediately) — poll until they land. +function managePolling() { + const waiting = state.library.some((i) => !hasTags(i)); + clearTimeout(state.pollTimer); + if (waiting && state.pollTries < POLL_MAX_TRIES && state.me) { + state.pollTries++; + state.pollTimer = setTimeout(async () => { + const before = state.library.filter(hasTags).length; + await loadLibrary({ quiet: true }); + if (state.library.filter(hasTags).length > before) toast("✨ AI tags are ready", "ai"); + }, POLL_EVERY_MS); + } +} - "Content-Type":"application/json" +/* ---------- upload (POST /images/upload) ---------- */ + +async function upload(file) { + if (!file) return; + if (!file.type.startsWith("image/")) return toast("Only image files are allowed", "error"); + if (file.size > MAX_BYTES) return toast("File is too large — the limit is 10 MB", "error"); + + const dz = $("dropzone"); + dz.classList.add("busy"); + $("dzTitle").textContent = "Uploading…"; + try { + const body = new FormData(); + body.append("file", file); + const res = await authed("/images/upload", { method: "POST", body }); + if (res.status === 413) throw new Error("File is too large"); + if (!res.ok) throw new Error("Upload failed — please try another image"); + toast("Uploaded — AI is tagging it now", "ai"); + state.pollTries = 0; + await loadLibrary({ quiet: true }); + } catch (e) { + if (e.message !== "auth") toast(e.message, "error"); + } finally { + dz.classList.remove("busy"); + $("dzTitle").textContent = "Drop an image or click to upload"; + $("fileInput").value = ""; + } +} +$("fileInput").onchange = (e) => upload(e.target.files[0]); +const dz = $("dropzone"); +["dragenter", "dragover"].forEach((ev) => dz.addEventListener(ev, (e) => { e.preventDefault(); dz.classList.add("over"); })); +["dragleave", "drop"].forEach((ev) => dz.addEventListener(ev, (e) => { e.preventDefault(); dz.classList.remove("over"); })); +dz.addEventListener("drop", (e) => upload(e.dataTransfer.files[0])); +dz.addEventListener("keydown", (e) => { if (e.key === "Enter" || e.key === " ") { e.preventDefault(); $("fileInput").click(); } }); + +/* ---------- detail modal (GET /images/{id}, DELETE /images/{id}) ---------- */ + +function openDetail(img, mine) { + state.openId = img.id; + fillDetail(img, mine || state.myIds.has(img.id)); + if (!$("detail").open) $("detail").showModal(); +} - }, +function fillDetail(img, mine) { + const media = $("detailMedia"); + media.replaceChildren(paletteArt(img)); + if (mine) { + getUrl(img.id).then((url) => { + if (state.openId !== img.id) return; + const im = h("img", { alt: "Uploaded image", src: url }); + im.onload = () => media.querySelector(".palette-art")?.remove(); + media.prepend(im); + }).catch(() => {}); + } else { + media.append(h("span", { class: "thumb-label", style: "position:relative" }, "Only the owner can view the photo")); + } - body:JSON.stringify({ + const tags = $("detailTags"); + tags.replaceChildren(); + if (!hasTags(img)) { + tags.append(h("div", { class: "analyzing-line" }, h("i", { class: "spark" }), "Waiting for AI tags…")); + } else { + const group = (title, items, kind) => items.length && h("div", { class: "tag-group" }, + h("h4", {}, title), h("div", { class: "chips" }, ...items.map((t) => chip(t, kind)))); + tags.append( + group("Objects detected", objectsOf(img), "object"), + group("Scene & mood", sceneOf(img), "scene"), + group("Dominant colours", colorsOf(img), "color"), + ); + } - email, + $("detailMeta").replaceChildren( + h("dt", {}, "Type"), h("dd", {}, img.contentType || "—"), + h("dt", {}, "Size"), h("dd", {}, fmtSize(img.fileSize)), + h("dt", {}, "ID"), h("dd", {}, img.id), + ); - password + const actions = $("detailActions"); + actions.replaceChildren(); + if (mine) { + actions.append( + h("button", { class: "btn", onclick: async () => { + try { window.open(await getUrl(img.id), "_blank", "noopener"); } catch { toast("Couldn't get the image link", "error"); } + } }, "Open full size"), + h("button", { class: "btn", onclick: async () => { + try { await navigator.clipboard.writeText(await getUrl(img.id)); toast("Link copied — valid for 15 minutes"); } + catch { toast("Couldn't copy the link", "error"); } + } }, "Copy link"), + ); + let armed = false; + const del = h("button", { class: "btn danger", onclick: async () => { + if (!armed) { armed = true; del.textContent = "Click again to delete"; setTimeout(() => { armed = false; del.textContent = "Delete"; }, 3000); return; } + await deleteImage(img.id); + } }, "Delete"); + actions.append(del); + } +} - }) +async function deleteImage(id) { + try { + const res = await authed("/images/" + id, { method: "DELETE" }); + if (!res.ok) throw new Error("Couldn't delete this image"); + state.urls.delete(id); + closeDetail(); + toast("Image deleted"); + await loadLibrary({ quiet: true }); + if (!$("view-explore").hidden) loadExplore(); + } catch (e) { + if (e.message !== "auth") toast(e.message, "error"); + } +} - }); +function closeDetail() { state.openId = null; if ($("detail").open) $("detail").close(); } + +// close dialogs on ✕ and on backdrop click +document.querySelectorAll("dialog").forEach((d) => { + d.addEventListener("click", (e) => { if (e.target === d || e.target.closest("[data-close]")) d.close(); }); +}); +$("detail").addEventListener("close", () => (state.openId = null)); + +/* ---------- auth (POST /auth/register, /auth/login, /auth/logout, GET /auth/me) ---------- */ + +function setUser(user) { + state.me = user; + $("guestActions").hidden = !!user; + $("userActions").hidden = !user; + $("userChip").textContent = user ? user.email : ""; + document.querySelectorAll("[data-auth]").forEach((b) => (b.hidden = !user)); + if (!user) { + clearTimeout(state.pollTimer); + state.library = []; + state.myIds = new Set(); + state.urls.clear(); + if (!$("view-library").hidden) showView("explore"); + } +} +function openAuth(mode) { + state.authMode = mode; + const login = mode === "login"; + document.querySelectorAll(".seg-btn").forEach((b) => b.classList.toggle("active", b.dataset.mode === mode)); + $("authTitle").textContent = login ? "Welcome back" : "Create your account"; + $("authSubmit").textContent = login ? "Log in" : "Sign up"; + $("authPassword").autocomplete = login ? "current-password" : "new-password"; + $("authError").hidden = true; + if (!$("authModal").open) $("authModal").showModal(); + $("authEmail").focus(); } +document.querySelectorAll(".seg-btn").forEach((b) => (b.onclick = () => openAuth(b.dataset.mode))); +$("loginBtn").onclick = () => openAuth("login"); +$("registerBtn").onclick = () => openAuth("register"); -async function logout(){ +function authError(msg) { $("authError").textContent = msg; $("authError").hidden = false; } - await fetch(API+"/auth/logout",{ +async function postJson(path, data) { + return api(path, { method: "POST", headers: { "Content-Type": "application/json" }, body: JSON.stringify(data) }); +} - method:"POST", +$("authForm").onsubmit = async (e) => { + e.preventDefault(); + const email = $("authEmail").value.trim(); + const password = $("authPassword").value; + if (!/^\S+@\S+\.\S+$/.test(email)) return authError("Enter a valid email address"); + if (password.length < 8) return authError("Password must be at least 8 characters"); + + const btn = $("authSubmit"); + btn.disabled = true; + try { + if (state.authMode === "register") { + const reg = await postJson("/auth/register", { email, password }); + if (reg.status === 400) return authError("Please check your email and password"); + if (!reg.ok) return authError("Couldn't create the account — that email may already be registered"); + } + const res = await postJson("/auth/login", { email, password }); + if (res.status === 401) return authError("Invalid email or password"); + if (!res.ok) return authError("Something went wrong — please try again"); + + const me = await api("/auth/me"); + if (!me.ok) return authError("Logged in, but couldn't load your profile"); + setUser(await me.json()); + $("authModal").close(); + $("authForm").reset(); + toast(state.authMode === "register" ? "Welcome to TagLens 🎉" : "Logged in"); + await loadLibrary({ quiet: true }); + markMine(); + } catch { + authError("Can't reach the server"); + } finally { + btn.disabled = false; + } +}; - credentials:"include" +$("logoutBtn").onclick = async () => { + await api("/auth/logout", { method: "POST" }).catch(() => {}); + setUser(null); + toast("Logged out"); + loadExplore(); +}; - }); +/* ---------- boot ---------- */ -} +(async function init() { + try { + const res = await api("/auth/me"); + setUser(res.ok ? await res.json() : null); + } catch { setUser(null); } -loadImages(); \ No newline at end of file + const start = location.hash.replace("#", "") === "library" ? "library" : "explore"; + showView(start); + await loadExplore(); +})(); diff --git a/src/main/resources/static/index.html b/src/main/resources/static/index.html index 6457a04..23e4955 100644 --- a/src/main/resources/static/index.html +++ b/src/main/resources/static/index.html @@ -3,90 +3,125 @@ - TagLens - + TagLens — AI image hosting + + + + + -
- - - -