feat: add identity and feed management (#272)

* feat(wip): add basic feed operations

* ci: bump checks

* ci: bump checks

* feat: rework stamps and add feed functionalities

* refactor: polish and fixes

* feat(wip): add formulas

* feat: show bzz.link for websites

* feat: add stamp empty states and formatBzz

* feat: add feed download

* chore: update manifest-js version

* feat: dev mode support with bee-js 3.1.0 (#273)

* feat: dev mode support with bee-js 3.1.0

* fix: added missing package-lock.json file

* build: remove PR preview

* style: work on design

* feat: add TroubleshootConnectionCard

* build: remove depcheck

Co-authored-by: Attila Gazso <agazso@gmail.com>

src/utils/index.ts

@@ -112,3 +112,80 @@ export function extractSwarmHash(string: string): string | null {
 
   return (matches && matches[0]) || null
 }
+
+export function uuidV4(): string {
+  const pattern = '10000000-1000-4000-8000-100000000000'
+
+  return pattern.replace(/[018]/g, (s: string) => {
+    const c = parseInt(s, 10)
+
+    return (c ^ (crypto.getRandomValues(new Uint8Array(1))[0] & (15 >> (c / 4)))).toString(16)
+  })
+}
+
+export function formatEnum(string: string): string {
+  return (string.charAt(0).toUpperCase() + string.slice(1).toLowerCase()).replaceAll('_', ' ')
+}
+
+export function secondsToTimeString(seconds: number): string {
+  let unit = seconds
+
+  if (unit < 120) {
+    return `${seconds} seconds`
+  }
+  unit /= 60
+
+  if (unit < 120) {
+    return `${Math.round(unit)} minutes`
+  }
+  unit /= 60
+
+  if (unit < 48) {
+    return `${Math.round(unit)} hours`
+  }
+  unit /= 24
+
+  if (unit < 14) {
+    return `${Math.round(unit)} days`
+  }
+  unit /= 7
+
+  if (unit < 52) {
+    return `${Math.round(unit)} weeks`
+  }
+  unit /= 52
+
+  return `${unit.toFixed(1)} years`
+}
+
+export function formatBzz(amount: number): string {
+  const asString = amount.toFixed(16)
+
+  let indexOfSignificantDigit = -1
+  let reachedDecimalPoint = false
+
+  for (let i = 0; i < asString.length; i++) {
+    const char = asString[i]
+
+    if (char === '.') {
+      reachedDecimalPoint = true
+    } else if (reachedDecimalPoint && char !== '0') {
+      indexOfSignificantDigit = i
+      break
+    }
+  }
+
+  return asString.slice(0, indexOfSignificantDigit + 4)
+}
+
+export function convertDepthToBytes(depth: number): number {
+  return 2 ** depth * 4096
+}
+
+export function convertAmountToSeconds(amount: number): number {
+  return amount / 10 / 1
+}
+
+export function calculateStampPrice(depth: number, amount: number): number {
+  return (amount * 2 ** (depth - 16) * 2) / 1e16
+}