Move plugins to a plugin directory

2026-06-18 10:31:48 -07:00
parent 72ab746254
commit fafa3b172e
32 changed files with 182 additions and 133 deletions
@@ -0,0 +1,58 @@
+import {derived} from "svelte/store"
+import {fetchJson} from "@welshman/lib"
+import type {Maybe} from "@welshman/lib"
+import {displayRelayUrl, displayRelayProfile} from "@welshman/util"
+import type {RelayProfile} from "@welshman/util"
+import {LoadableMapPlugin, projection} from "./base.js"
+import type {Projection} from "./base.js"
+
+/**
+ * NIP-11 relay profiles, keyed by url. A "local" loadable collection: items
+ * aren't nostr events, they're fetched over HTTP from each relay.
+ */
+export class Relays extends LoadableMapPlugin<RelayProfile> {
+  fetch = async (url: string): Promise<Maybe<RelayProfile>> => {
+    try {
+      const json = await fetchJson(url.replace(/^ws/, "http"), {
+        headers: {
+          Accept: "application/nostr+json",
+        },
+      })
+
+      if (json) {
+        const info = {...json, url} as RelayProfile
+
+        if (!Array.isArray(info.supported_nips)) {
+          info.supported_nips = []
+        }
+
+        info.supported_nips = info.supported_nips.map(String)
+
+        this.set(url, info)
+
+        return info
+      }
+    } catch (e) {
+      // pass
+    }
+  }
+
+  display = (url: string): Projection<string> => {
+    const read = ($relay: Maybe<RelayProfile>) => displayRelayProfile($relay, displayRelayUrl(url))
+
+    return projection(derived(this.one(url), read), () => read(this.get(url)))
+  }
+
+  hasNegentropy = async (url: string) => {
+    const relay = await this.load(url)
+
+    if (relay?.negentropy) return true
+    if (relay?.supported_nips?.includes("77")) return true
+    if (relay?.software?.includes?.("strfry") && !relay?.version?.match(/^0\./)) return true
+
+    return false
+  }
+
+  hasNip = async (url: string, nip: number | string) =>
+    (await this.load(url))?.supported_nips?.includes(String(nip)) ?? false
+}