git.r.bdr.sh - rbdr/lyricli/blob - Sources/configuration.swift

   1 import Foundation
   2
   3 /// Handles reading and writing the configuration
   4 public class Configuration {
   5
   6     let configurationPath = NSString(string: "~/.lyricli.conf").expandingTildeInPath
   7
   8     // The defaults are added here
   9
  10     private var configuration: [String: Any] =  [
  11         "enabled_sources": ["arguments"],
  12         "default": true
  13     ]
  14
  15     static let sharedInstance: Configuration = Configuration()
  16
  17     private init() {
  18
  19         // Read the config file and attempt toset any of the values. Otherwise
  20         // Don't do anything.
  21         // IMPROVEMENT: Enable a debug mode
  22
  23         if let data = try? NSData(contentsOfFile: configurationPath) as Data {
  24             if let parsedConfig = try? JSONSerialization.jsonObject(with: data) {
  25                 if let parsedConfig = parsedConfig as? [String: Any] {
  26                     for (key, value) in parsedConfig {
  27
  28                         if key == "enabled_sources" {
  29                             if let value = value as? [String] {
  30                                 configuration[key] = value
  31                             }
  32                         } else {
  33                             if let value = value as? String {
  34                                 configuration[key] = value
  35                             }
  36                         }
  37                     }
  38                 }
  39             }
  40         }
  41
  42         writeConfiguration()
  43     }
  44
  45     private func writeConfiguration() {
  46
  47         var error: NSError?
  48
  49         if let outputStream = OutputStream(toFileAtPath: configurationPath, append: false) {
  50             outputStream.open()
  51             JSONSerialization.writeJSONObject(configuration,
  52                     to: outputStream,
  53                     options: [JSONSerialization.WritingOptions.prettyPrinted],
  54                     error: &error)
  55             outputStream.close()
  56         }
  57     }
  58
  59     // Allow access as an object
  60     subscript(index: String) -> Any? {
  61         get {
  62             return configuration[index]
  63         }
  64
  65         set(newValue) {
  66             configuration[index] = newValue
  67             writeConfiguration()
  68         }
  69     }
  70 }