import Foundation
// ----------------------------------------------- //
// How to
// ----------------------------------------------- //
//
// 1. Set valid data based on lights.json
// 2. Run and get long decimal string in outpup
// 3. Copy&past to QR generator, set QR decimal format
//
// Link to generator: https://racoindustries.com/barcodegenerator/2d/qr-code/#
//
// ----------------------------------------------- //
// Params
// ----------------------------------------------- //
let serial: String = "RBDB11834KV000018"
let rinNetUuid: String = "121593"
let publicKey: String = "494BA68F953D93752AFBDD4DFE427F59846E29B2B00E2542D07D5C89549A6771"
// ----------------------------------------------- //
// Generation Code
// ----------------------------------------------- //
class BeamsDeviceQRGenerator {
enum FieldType: UInt8 {
case serial = 0
case ringNetUUID = 1
case publicKey = 2
}
func generateQRDecimalString(fromSerial serial: String, ringNetUuid: String, publicKey: String) -> String {
let magic = "8266"
let version = "01"
let checksum = "11283"
var result = magic + version + checksum
result += chunk(type: .serial, content: serial)
result += chunk(type: .ringNetUUID, hexContent: ringNetUuid)
result += chunk(type: .publicKey, hexContent: publicKey)
return result
}
func chunk(type: FieldType, content: String) -> String {
let int16Chunks = chunksUInt16(fromString: content)
let payloadStr = int16Chunks.map { $0.asDecString() }.joined()
let sizeStr = UInt8(payloadStr.count).asDecString()
let typeStr = type.rawValue.asDecString()
let result = "\(typeStr)\(sizeStr)\(payloadStr)"
return result
}
func chunk(type: FieldType, hexContent: String) -> String {
var normalizedContent = hexContent
if type == .ringNetUUID {
while normalizedContent.count < 6 * 2 {
normalizedContent = "0" + normalizedContent
}
} else {
if normalizedContent.count % 2 != 0 {
normalizedContent = "0" + normalizedContent
}
}
let int16Chunks = chunksUInt16(fromHexString: normalizedContent)
var payloadStr = int16Chunks.map { $0.asDecString() }.joined()
if type == .ringNetUUID {
payloadStr = "99" + payloadStr
}
let sizeStr = UInt8(payloadStr.count).asDecString()
let typeStr = type.rawValue.asDecString()
let result = "\(typeStr)\(sizeStr)\(payloadStr)"
return result
}
private func chunksUInt16(fromString content: String) -> [UInt16] {
let chunkSize = 2
let chunks = ((content.count + 1) / chunkSize) // ceil
let dataChunks: [Data] = (0..<chunks).map {
let str = String(content.dropFirst($0 * chunkSize)).prefix(chunkSize)
let data = Data(str.utf8)
return data
}
let int16Chunks = dataChunks.map { UInt16(withData: $0)! }
return int16Chunks
}
private func chunksUInt16(fromHexString content: String) -> [UInt16] {
let chunkSize = 4
let chunks = (content.count / chunkSize)
let int16Chunks: [UInt16] = (0..<chunks).map {
let str = String(content.dropFirst($0 * chunkSize)).prefix(chunkSize)
let int = UInt16(str, radix: 16)
return int!
}
return int16Chunks
}
}
extension UInt16 {
func asHexString() -> String {
return String(format: "%02x", self)
}
func asDecString() -> String {
return String(format: "%05d", self)
}
init?(withData data: Data) {
guard data.count <= 2 else { return nil }
var buffer: UInt16 = 0
for val in data {
buffer = buffer << 8
buffer += UInt16(val)
}
self = buffer
}
}
extension UInt8 {
func asHexString() -> String {
return String(format: "%01x", self)
}
func asDecString() -> String {
return String(format: "%02d", self)
}
}
// ----------------------------------------------- //
let generator = BeamsDeviceQRGenerator()
let decimal = generator.generateQRDecimalString(fromSerial: serial, ringNetUuid: rinNetUuid, publicKey: publicKey)
print(decimal)
// ----------------------------------------------- //
About Online Swift Compiler
Try our Online Swift Compiler (Version Swift v5.7.3) to Edit, Run, and Share your Swift Code directly from your browser. This online development environment provides you the latest version Swift v5.7.3.
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Write and Execute Code
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User Input
The latest version of Coding Ground allows to provide program input at run time from the termnial window exactly the same way as you run your program at your own computer. So simply run a program and provide your program input (if any) from the terminal window available in the right side.
Online Swift Compiler: Keyboard Shortcuts
The following are the keyword shortcut of this Online Swift Compiler:
Shortcut | Description |
⌘ + Enter | Run the program |
⌘ + S | Save Project (Login Required) |
⇧ + ⌘ + S | Save As Project |
⌘ + P | New Project |
⌘ + G | Share Project |
⌘ + Z | Undo Editing |
⌘ + Y | Redo Editing |
⌘ + A | Select All Text |
⌘ + X | Cut Selected Text |
⌘ + C | Copy Selected Text |
⌘ + V | Paste Copied Text |
⌘ + F | Search Text |
⌘ + ⌥ + F | Replace Text |
Shortcut | Description |
Ctrl + Enter | Run the program |
Ctrl + S | Save Project |
Shift + Ctrl + S | Save As Project |
Ctrl + G | Share Project |
Ctrl + Z | Undo Editing |
Ctrl + Y | Redo Editing |
Ctrl + A | Select All Text |
Ctrl + X | Cut Selected Text |
Ctrl + C | Copy Selected Text |
Ctrl + V | Paste Copied Text |
Ctrl + F | Search Text |
Ctrl + H | Replace Text |
Online Swift Compiler: Save and Share Swift Code (Project)
Save Swift Project Online
You can save your Swift Project with us so that you can access this project later on. To save a project you will need to create a login Id with us. So before you save a project, please create a login Id using a link given at the top right corner of this page.
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You can use this feature to share your Swift Code with your teachers, classmates and colleagues. Just click Share Button and it will create a short link, which can be shared through Email, WhatsApp or even through Social Media. A shared link will be deleted if it has been passive for almost 3 months.
More Features of Online Swift Compiler
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