ttimt/Short_Cutteer

package main

import (
    "sort"
)

var (
    userCommands     = make(map[string]*Command)
    maxCommandLen    int
    uniqueCommandLen = make(map[int]struct{})
    sliceCommandLen  []int
)

type Command struct {
    Title       string `json:"title"`
    Description string `json:"description"`
    Command     string `json:"command"`
    Output      string `json:"output"`
}

func updateUserCommand(c Command) {
    userCommands[c.Command] = &c

    if len(c.Command) > maxCommandLen {
        maxCommandLen = len(c.Command)
    }
}

func updateAllCommandLength() {
    commands := getAllCommands()

    for _, v := range commands {
        updateCommandLength(v.Command)
    }

    sort.Ints(sliceCommandLen)
}

func updateCommandLength(command string) {
    commandLength := len(command)

    if _, ok := uniqueCommandLen[commandLength]; !ok {
        sliceCommandLen = append(sliceCommandLen, commandLength)
        uniqueCommandLen[commandLength] = struct{}{}
    }
}

func getAllCommands() []Command {
    commands := make([]Command, len(userCommands))

    i := 0
    for k := range userCommands {
        commands[i] = *userCommands[k]
        i++
    }

    return commands
}