44 lines
991 B
Go
44 lines
991 B
Go
package tcpcommand
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import (
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"errors"
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"net"
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)
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type Command struct {
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// Command is what server/client will RECEIVE
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Command string
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// Action is what to DO when such command is RECEIVED
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Action func([]string, net.Conn)
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}
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type CommandBundle struct {
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Commands []Command
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}
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// implementation is O(n)
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func (cb *CommandBundle) alreadyHaveCommand(cmd string) bool {
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for _, command := range cb.Commands {
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if command.Command == cmd {
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return true
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}
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}
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return false
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}
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var ErrCommandBundleDuplicateCommands = errors.New("Found two commands with the same Command value")
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func CreateCommandBundle(commands []Command) (*CommandBundle, error) {
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cb := &CommandBundle{
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Commands: []Command{},
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}
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for _, cmd := range commands {
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// cb.alreadyHaveCommand is O(n) but it's ok since we won't have commandBundle with over 100k commands
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if cb.alreadyHaveCommand(cmd.Command) {
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return nil, ErrCommandBundleDuplicateCommands
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}
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cb.Commands = append(cb.Commands, cmd)
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}
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return cb, nil
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}
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