1  export class ConfigMenu {
  2    constructor(uiService, menuLoop, configService, numberSelector) {
  3      this.ui = uiService;
  4      this.loop = menuLoop;
  5      this.configService = configService;
  6      this.numberSelector = numberSelector;
  7  
  8      this.loop.initialize(this.showConfigMenu);
  9    }
 10  
 11    show = async () => {
 12      this.config = this.configService.get();
 13      this.ui.showInfoMessage("Codex Configuration");
 14      await this.loop.showLoop();
 15    };
 16  
 17    showConfigMenu = async () => {
 18      await this.ui.askMultipleChoice("Select to edit:", [
 19        {
 20          label: `Storage quota = ${this.bytesAmountToString(this.config.storageQuota)}`,
 21          action: this.editStorageQuota,
 22        },
 23        {
 24          label: `Discovery port = ${this.config.ports.discPort}`,
 25          action: this.editDiscPort,
 26        },
 27        {
 28          label: `P2P listen port = ${this.config.ports.listenPort}`,
 29          action: this.editListenPort,
 30        },
 31        {
 32          label: `API port = ${this.config.ports.apiPort}`,
 33          action: this.editApiPort,
 34        },
 35        {
 36          label: "Save changes and exit",
 37          action: this.saveChangesAndExit,
 38        },
 39        {
 40          label: "Discard changes and exit",
 41          action: this.discardChangesAndExit,
 42        },
 43      ]);
 44    };
 45  
 46    // this and the byte-format handling in
 47    // numberSelector should be extracted to
 48    // their own util.
 49    bytesAmountToString = (numBytes) => {
 50      const units = ["Bytes", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"];
 51  
 52      var value = numBytes;
 53      var index = 0;
 54      while (value > 1024) {
 55        index = index + 1;
 56        value = value / 1024;
 57      }
 58  
 59      if (index == 0) return `${numBytes} Bytes`;
 60      return `${numBytes} Bytes (${value} ${units[index]})`;
 61    };
 62  
 63    editStorageQuota = async () => {
 64      this.ui.showInfoMessage("You can use: 'GB' or 'gb', etc.");
 65      const newQuota = await this.numberSelector.show(
 66        this.config.storageQuota,
 67        "Storage quota",
 68        true,
 69      );
 70      if (newQuota < 100 * 1024 * 1024) {
 71        this.ui.showErrorMessage("Storage quote should be >= 100mb.");
 72      } else {
 73        this.config.storageQuota = newQuota;
 74      }
 75    };
 76  
 77    editDiscPort = async () => {
 78      const newPort = await this.numberSelector.show(
 79        this.config.ports.discPort,
 80        "Discovery port",
 81        false,
 82      );
 83      if (this.isInPortRange(newPort)) {
 84        this.config.ports.discPort = newPort;
 85      }
 86    };
 87  
 88    editListenPort = async () => {
 89      const newPort = await this.numberSelector.show(
 90        this.config.ports.listenPort,
 91        "P2P listen port",
 92        false,
 93      );
 94      if (this.isInPortRange(newPort)) {
 95        this.config.ports.listenPort = newPort;
 96      }
 97    };
 98  
 99    editApiPort = async () => {
100      const newPort = await this.numberSelector.show(
101        this.config.ports.apiPort,
102        "API port",
103        false,
104      );
105      if (this.isInPortRange(newPort)) {
106        this.config.ports.apiPort = newPort;
107      }
108    };
109  
110    isInPortRange = (number) => {
111      if (number < 1024 || number > 65535) {
112        this.ui.showErrorMessage("Port should be between 1024 and 65535.");
113        return false;
114      }
115      return true;
116    };
117  
118    saveChangesAndExit = async () => {
119      this.configService.saveConfig();
120      this.ui.showInfoMessage("Configuration changes saved.");
121      this.loop.stopLoop();
122    };
123  
124    discardChangesAndExit = async () => {
125      this.configService.loadConfig();
126      this.ui.showInfoMessage("Changes discarded.");
127      this.loop.stopLoop();
128    };
129  }