From 3e6ebc62cc6d16aa8734dbc1a358ea46a5c0e452 Mon Sep 17 00:00:00 2001
From: hzrd149 <github@hzrd149.com>
Date: Mon, 19 Aug 2024 11:17:02 -0500
Subject: [PATCH] add blossom uploads

---
 package-lock.json                        | 62 ++++++++++++++++++++++++
 package.json                             |  1 +
 src/components/CreateMeritRequest.svelte | 25 +++++++---
 src/components/CreateNewProduct.svelte   | 11 ++++-
 src/components/RichTextArea.svelte       | 48 ++++++++++++++++++
 src/components/UploadMediaLink.svelte    | 46 ++++++++++++++++++
 src/lib/blossom/pasteImage.ts            | 33 +++++++++++++
 src/lib/blossom/servers.ts               | 37 ++++++++++++++
 src/lib/blossom/signer.ts                | 16 ++++++
 9 files changed, 270 insertions(+), 9 deletions(-)
 create mode 100644 src/components/RichTextArea.svelte
 create mode 100644 src/components/UploadMediaLink.svelte
 create mode 100644 src/lib/blossom/pasteImage.ts
 create mode 100644 src/lib/blossom/servers.ts
 create mode 100644 src/lib/blossom/signer.ts

diff --git a/package-lock.json b/package-lock.json
index dc7e3c1..88b116c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19,6 +19,7 @@
 				"bitcoin-address-validation": "^2.2.3",
 				"bits-ui": "^0.21.10",
 				"bloomfilter": "^0.0.18",
+				"blossom-client-sdk": "^0.9.1",
 				"clsx": "^2.1.1",
 				"cmdk-sv": "^0.0.17",
 				"embla-carousel-svelte": "^8.1.3",
@@ -1888,6 +1889,16 @@
 			"resolved": "https://registry.npmjs.org/bloomfilter/-/bloomfilter-0.0.18.tgz",
 			"integrity": "sha512-CbnyHE78gY1tpXS/Ap+B0RJxKdRWCDzjBnX97UJSG8rdLv1PK8GiTWc/CCQyWu6PWVD4lUceeFrqC6Mf3nMgOA=="
 		},
+		"node_modules/blossom-client-sdk": {
+			"version": "0.9.1",
+			"resolved": "https://registry.npmjs.org/blossom-client-sdk/-/blossom-client-sdk-0.9.1.tgz",
+			"integrity": "sha512-lEZ4uNzM09rhp7mjzmgLDC3OEgFd76GkmR90fye/IT5HVCofIT6ldBfyqBY9DcuM1S+XNa1Cu14wFg95CyH8Ag==",
+			"license": "MIT",
+			"dependencies": {
+				"@noble/hashes": "^1.4.0",
+				"cross-fetch": "^4.0.0"
+			}
+		},
 		"node_modules/brace-expansion": {
 			"version": "1.1.11",
 			"resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
@@ -2259,6 +2270,35 @@
 				"node": ">= 0.6"
 			}
 		},
+		"node_modules/cross-fetch": {
+			"version": "4.0.0",
+			"resolved": "https://registry.npmjs.org/cross-fetch/-/cross-fetch-4.0.0.tgz",
+			"integrity": "sha512-e4a5N8lVvuLgAWgnCrLr2PP0YyDOTHa9H/Rj54dirp61qXnNq46m82bRhNqIA5VccJtWBvPTFRV3TtvHUKPB1g==",
+			"license": "MIT",
+			"dependencies": {
+				"node-fetch": "^2.6.12"
+			}
+		},
+		"node_modules/cross-fetch/node_modules/node-fetch": {
+			"version": "2.7.0",
+			"resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.7.0.tgz",
+			"integrity": "sha512-c4FRfUm/dbcWZ7U+1Wq0AwCyFL+3nt2bEw05wfxSz+DWpWsitgmSgYmy2dQdWyKC1694ELPqMs/YzUSNozLt8A==",
+			"license": "MIT",
+			"dependencies": {
+				"whatwg-url": "^5.0.0"
+			},
+			"engines": {
+				"node": "4.x || >=6.0.0"
+			},
+			"peerDependencies": {
+				"encoding": "^0.1.0"
+			},
+			"peerDependenciesMeta": {
+				"encoding": {
+					"optional": true
+				}
+			}
+		},
 		"node_modules/cross-spawn": {
 			"version": "7.0.3",
 			"resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.3.tgz",
@@ -5480,6 +5520,12 @@
 				"node": ">=6"
 			}
 		},
+		"node_modules/tr46": {
+			"version": "0.0.3",
+			"resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
+			"integrity": "sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw==",
+			"license": "MIT"
+		},
 		"node_modules/trough": {
 			"version": "2.2.0",
 			"resolved": "https://registry.npmjs.org/trough/-/trough-2.2.0.tgz",
@@ -5823,6 +5869,12 @@
 				"node": ">= 8"
 			}
 		},
+		"node_modules/webidl-conversions": {
+			"version": "3.0.1",
+			"resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
+			"integrity": "sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ==",
+			"license": "BSD-2-Clause"
+		},
 		"node_modules/webln": {
 			"version": "0.3.2",
 			"resolved": "https://registry.npmjs.org/webln/-/webln-0.3.2.tgz",
@@ -5869,6 +5921,16 @@
 			"resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
 			"integrity": "sha512-Tpp60P6IUJDTuOq/5Z8cdskzJujfwqfOTkrwIwj7IRISpnkJnT6SyJ4PCPnGMoFjC9ddhal5KVIYtAt97ix05A=="
 		},
+		"node_modules/whatwg-url": {
+			"version": "5.0.0",
+			"resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
+			"integrity": "sha512-saE57nupxk6v3HY35+jzBwYa0rKSy0XR8JSxZPwgLr7ys0IBzhGviA1/TUGJLmSVqs8pb9AnvICXEuOHLprYTw==",
+			"license": "MIT",
+			"dependencies": {
+				"tr46": "~0.0.3",
+				"webidl-conversions": "^3.0.0"
+			}
+		},
 		"node_modules/which": {
 			"version": "2.0.2",
 			"resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
diff --git a/package.json b/package.json
index ebd7027..6371d5f 100644
--- a/package.json
+++ b/package.json
@@ -49,6 +49,7 @@
 		"bitcoin-address-validation": "^2.2.3",
 		"bits-ui": "^0.21.10",
 		"bloomfilter": "^0.0.18",
+		"blossom-client-sdk": "^0.9.1",
 		"clsx": "^2.1.1",
 		"cmdk-sv": "^0.0.17",
 		"embla-carousel-svelte": "^8.1.3",
diff --git a/src/components/CreateMeritRequest.svelte b/src/components/CreateMeritRequest.svelte
index 668477f..32f6ea0 100644
--- a/src/components/CreateMeritRequest.svelte
+++ b/src/components/CreateMeritRequest.svelte
@@ -4,7 +4,6 @@
 	import { Input } from '$lib/components/ui/input/index.js';
 	import { Label } from '$lib/components/ui/label/index.js';
 	import * as Alert from '@/components/ui/alert';
-	import Textarea from '@/components/ui/textarea/textarea.svelte';
 	import { ndk } from '@/ndk';
 	import { currentUser } from '@/stores/session';
 	import { NDKEvent } from '@nostr-dev-kit/ndk';
@@ -15,6 +14,9 @@
 	import CalculateSats from './CalculateSats.svelte';
 	import { isGitHubIssuesOrPullUrl, parseProblem } from '@/helpers';
 	import Login from './Login.svelte';
+	import RichTextArea from './RichTextArea.svelte';
+	import UploadMediaLink from './UploadMediaLink.svelte';
+	import type { BlobDescriptor } from 'blossom-client-sdk';
 
 	export let rocket: Rocket;
 
@@ -102,6 +104,10 @@
 				);
 			});
 	}
+
+	function handleUploaded(event: CustomEvent<BlobDescriptor>) {
+		solution += `\n${event.detail.url}\n`;
+	}
 </script>
 
 <Dialog.Root bind:open>
@@ -123,7 +129,7 @@
 		<div class="grid gap-4 overflow-auto py-4">
 			<div class="grid grid-cols-4 items-center gap-4">
 				<Label for="name" class="text-right">Problem</Label>
-				<Textarea
+				<RichTextArea
 					bind:value={problem}
 					id="name"
 					placeholder="Describe the problem you solved, links to github are also acceptable"
@@ -132,12 +138,15 @@
 			</div>
 			<div class="grid grid-cols-4 items-center gap-4">
 				<Label for="desc" class="text-right">Solution (proof of work)</Label>
-				<Textarea
-					bind:value={solution}
-					id="desc"
-					placeholder="Link to your solution (e.g. a merged PR or some other evidence)"
-					class="col-span-3 {validateSolution(solution) ? 'border-green-700' : 'border-red-600'}"
-				/>
+				<div class="col-span-3">
+					<RichTextArea
+						bind:value={solution}
+						id="desc"
+						placeholder="Link to your solution (e.g. a merged PR or some other evidence)"
+						class={validateSolution(solution) ? 'border-green-700' : 'border-red-600'}
+					/>
+					<UploadMediaLink on:uploaded={handleUploaded}>Upload Image</UploadMediaLink>
+				</div>
 			</div>
 			<div class="grid grid-cols-4 items-center gap-4">
 				<Label for="sats" class="text-right">Value of your work (Sats)</Label>
diff --git a/src/components/CreateNewProduct.svelte b/src/components/CreateNewProduct.svelte
index b141ecd..7a2c28f 100644
--- a/src/components/CreateNewProduct.svelte
+++ b/src/components/CreateNewProduct.svelte
@@ -14,6 +14,8 @@
 	import { base } from '$app/paths';
 	import { getRocketURL } from '@/helpers';
 	import Textarea from '@/components/ui/textarea/textarea.svelte';
+	import UploadMediaLink from './UploadMediaLink.svelte';
+	import type { BlobDescriptor } from 'blossom-client-sdk';
 
 	export let rocketEvent: NDKEvent;
 
@@ -48,6 +50,10 @@
 			goto(`${base}/rockets/${getRocketURL(rocketEvent)}`);
 		});
 	}
+
+	function handleUploaded(event: CustomEvent<BlobDescriptor>) {
+		image = event.detail.url;
+	}
 </script>
 
 <Dialog.Root bind:open={o}>
@@ -86,7 +92,10 @@
 			</div>
 			<div class="grid grid-cols-4 items-center gap-4">
 				<Label for="image" class="text-right">Cover Image</Label>
-				<Input bind:value={image} id="name" placeholder="URL of cover image" class="col-span-3" />
+				<div class="col-span-3">
+					<Input bind:value={image} id="name" placeholder="URL of cover image" />
+					<UploadMediaLink on:uploaded={handleUploaded}>Upload</UploadMediaLink>
+				</div>
 			</div>
 		</div>
 		<Dialog.Footer>
diff --git a/src/components/RichTextArea.svelte b/src/components/RichTextArea.svelte
new file mode 100644
index 0000000..776fd3e
--- /dev/null
+++ b/src/components/RichTextArea.svelte
@@ -0,0 +1,48 @@
+<script lang="ts">
+	import type { HTMLTextareaAttributes } from 'svelte/elements';
+	import Textarea from '../lib/components/ui/textarea/textarea.svelte';
+	import { onMount } from 'svelte';
+	import { fetchUsersServers, uploadBlob, userServers } from '../lib/blossom/servers';
+	import { ndk } from '../lib/ndk';
+
+	type $$Props = HTMLTextareaAttributes;
+
+	export let value: $$Props['value'] = undefined;
+
+	// NOTE: this is kind of hacky and should be moved to some kind of "login" event
+	onMount(() => {
+		$ndk.signer?.user().then((user) => {
+			if ($userServers.length === 0 && $ndk.signer) fetchUsersServers(user.pubkey);
+		});
+	});
+
+	const handlePaste = async (event: ClipboardEvent) => {
+		const clipboardData = event.clipboardData;
+		if (!clipboardData) return;
+
+		// find the first image item
+		const item = Array.from(clipboardData.items).find((item) => item.type.startsWith('image/'));
+		if (!item) return;
+
+		try {
+			const file = item.getAsFile();
+			if (file) {
+				const blob = await uploadBlob(file, $userServers);
+
+				// Insert the image URL into the textarea
+				const insert = blob.url;
+				const textarea = event.target as HTMLTextAreaElement;
+				const startPos = textarea.selectionStart;
+				const endPos = textarea.selectionEnd;
+
+				const current = String(value);
+				value = current.substring(0, startPos) + insert + current.substring(endPos);
+			}
+			event.preventDefault();
+		} catch (error) {
+			if (error instanceof Error) alert(`Image upload failed: ${error.message}`);
+		}
+	};
+</script>
+
+<Textarea bind:value on:paste={handlePaste} {...$$restProps} />
diff --git a/src/components/UploadMediaLink.svelte b/src/components/UploadMediaLink.svelte
new file mode 100644
index 0000000..18635b7
--- /dev/null
+++ b/src/components/UploadMediaLink.svelte
@@ -0,0 +1,46 @@
+<script lang="ts">
+	import { createEventDispatcher, onMount } from 'svelte';
+	import { fetchUsersServers, uploadBlob, userServers } from '../lib/blossom/servers';
+	import { ndk } from '../lib/ndk';
+
+	const dispatch = createEventDispatcher();
+
+	let uploading = false;
+	let uploadInput: HTMLInputElement;
+
+	// NOTE: this is kind of hacky and should be moved to some kind of "login" event
+	onMount(() => {
+		$ndk.signer?.user().then((user) => {
+			if ($userServers.length === 0 && $ndk.signer) fetchUsersServers(user.pubkey);
+		});
+	});
+
+	const handleUpload = async (event: Event & { currentTarget: EventTarget & HTMLInputElement }) => {
+		const file = event.currentTarget.files?.item(0);
+
+		if (file) {
+			try {
+				dispatch('uploading');
+				const blob = await uploadBlob(file, $userServers);
+				dispatch('uploaded', blob);
+			} catch (error) {
+				if (error instanceof Error) alert(`Failed to upload image: ${error.message}`);
+			}
+		}
+	};
+</script>
+
+<input
+	bind:this={uploadInput}
+	type="file"
+	class="hidden"
+	on:change={handleUpload}
+	disabled={uploading || null}
+/>
+<button on:click={() => uploadInput.click()} class="hover:underline">
+	{#if uploading}
+		Uploading...
+	{:else}
+		<slot />
+	{/if}
+</button>
diff --git a/src/lib/blossom/pasteImage.ts b/src/lib/blossom/pasteImage.ts
new file mode 100644
index 0000000..e51b141
--- /dev/null
+++ b/src/lib/blossom/pasteImage.ts
@@ -0,0 +1,33 @@
+import { onMount } from 'svelte';
+
+export function pasteImage(node: HTMLTextAreaElement) {
+	const handlePaste = (event: ClipboardEvent) => {
+		const clipboardData = event.clipboardData;
+		if (!clipboardData) return;
+
+		const items = clipboardData.items;
+		for (let i = 0; i < items.length; i++) {
+			const item = items[i];
+			if (item.type.startsWith('image/')) {
+				const file = item.getAsFile();
+				if (file) {
+					// Create a URL for the image file
+					const imageUrl = URL.createObjectURL(file);
+					// Insert the image URL into the textarea
+					node.value += `\n![Image](${imageUrl})\n`;
+				}
+				event.preventDefault();
+			}
+		}
+	};
+
+	// Attach the paste event listener
+	node.addEventListener('paste', handlePaste);
+
+	// Clean up the event listener on unmount
+	return {
+		destroy() {
+			node.removeEventListener('paste', handlePaste);
+		}
+	};
+}
diff --git a/src/lib/blossom/servers.ts b/src/lib/blossom/servers.ts
new file mode 100644
index 0000000..686a61e
--- /dev/null
+++ b/src/lib/blossom/servers.ts
@@ -0,0 +1,37 @@
+import { get, writable } from 'svelte/store';
+import { BlossomClient, getServersFromServerListEvent } from 'blossom-client-sdk';
+import { ndk } from '../ndk';
+import { signEventTemplate } from './signer';
+
+export const userServers = writable<URL[]>([]);
+
+export async function fetchUsersServers(pubkey: string) {
+	const ndkSvelte = get(ndk);
+
+	const event = await ndkSvelte.fetchEvent({ kinds: [10063 as number], authors: [pubkey] });
+	if (!event) userServers.set([]);
+	else userServers.set(getServersFromServerListEvent(event));
+}
+
+export async function uploadBlob(file: File, servers?: URL[]) {
+	if (!servers) servers = get(userServers);
+	if (servers.length === 0) throw new Error('User does not have any blossom servers');
+
+	const sha256 = await BlossomClient.getFileSha256(file);
+	const auth = await BlossomClient.createUploadAuth(sha256, signEventTemplate, 'Upload Image');
+	const blob = await BlossomClient.uploadBlob(servers[0], file, auth);
+
+	// mirror blob to other servers in background
+	for (const server of servers.slice(1)) {
+		BlossomClient.mirrorBlob(server, blob.url, auth)
+			.catch((err) => {
+				// not all servers support mirroring, so attempt to upload
+				return BlossomClient.uploadBlob(server, file, auth);
+			})
+			.catch((error) => {
+				// upload filed, ignore error
+			});
+	}
+
+	return blob;
+}
diff --git a/src/lib/blossom/signer.ts b/src/lib/blossom/signer.ts
new file mode 100644
index 0000000..f23e85e
--- /dev/null
+++ b/src/lib/blossom/signer.ts
@@ -0,0 +1,16 @@
+import { get } from 'svelte/store';
+import { NDKEvent } from '@nostr-dev-kit/ndk';
+import type { EventTemplate, SignedEvent } from 'blossom-client-sdk';
+
+import { ndk } from '../ndk';
+
+export async function signEventTemplate(template: EventTemplate): Promise<SignedEvent> {
+	const _ndk = get(ndk);
+	const e = new NDKEvent(_ndk);
+	e.kind = template.kind;
+	e.content = template.content;
+	e.tags = template.tags;
+	e.created_at = template.created_at;
+	await e.sign();
+	return e.rawEvent() as SignedEvent;
+}