package infra

import (
	"testing"
)

func TestSSHConnDestination(t *testing.T) {
	tests := []struct {
		name string
		conn SSHConn
		want string
	}{
		{"con user", SSHConn{Host: "example.com", User: "deploy"}, "deploy@example.com"},
		{"sin user", SSHConn{Host: "example.com"}, "example.com"},
		{"con IP", SSHConn{Host: "10.0.0.1", User: "root"}, "root@10.0.0.1"},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got := tt.conn.destination()
			if got != tt.want {
				t.Errorf("destination() = %q, want %q", got, tt.want)
			}
		})
	}
}

func TestSSHConnSSHArgs(t *testing.T) {
	t.Run("puerto default", func(t *testing.T) {
		conn := SSHConn{Host: "example.com", User: "deploy"}
		args := conn.sshArgs()
		assertContains(t, args, "-p", "22")
	})

	t.Run("puerto custom", func(t *testing.T) {
		conn := SSHConn{Host: "example.com", Port: 2222}
		args := conn.sshArgs()
		assertContains(t, args, "-p", "2222")
	})

	t.Run("con key path", func(t *testing.T) {
		conn := SSHConn{Host: "example.com", KeyPath: "/home/user/.ssh/id_ed25519"}
		args := conn.sshArgs()
		assertContains(t, args, "-i", "/home/user/.ssh/id_ed25519")
	})

	t.Run("sin key path no incluye -i", func(t *testing.T) {
		conn := SSHConn{Host: "example.com"}
		args := conn.sshArgs()
		for _, a := range args {
			if a == "-i" {
				t.Error("sshArgs() no debe incluir -i si KeyPath esta vacio")
			}
		}
	})
}

func TestSSHConnSCPArgs(t *testing.T) {
	t.Run("usa -P mayuscula para puerto", func(t *testing.T) {
		conn := SSHConn{Host: "example.com", Port: 2222}
		args := conn.scpArgs()
		assertContains(t, args, "-P", "2222")
	})
}

func assertContains(t *testing.T, args []string, flag, value string) {
	t.Helper()
	for i, a := range args {
		if a == flag && i+1 < len(args) && args[i+1] == value {
			return
		}
	}
	t.Errorf("args %v no contiene %s %s", args, flag, value)
}