// Copyright (c) 2026 Storm Dragon
// SPDX-License-Identifier: GPL-3.0-or-later

package prompt

import (
	"git.stormux.org/storm/fenrir/internal/screen"
	"testing"
)

func TestShellDetectorRequiresFreshCursorPrompt(t *testing.T) {
	makeScreen := func(text string, cursor int) screen.Snapshot {
		s := screen.Snapshot{Terminal: 1, Active: true, Rows: 3, Cols: 80, Y: cursor, Cells: make([]rune, 240)}
		for i := range s.Cells {
			s.Cells[i] = ' '
		}
		copy(s.Line(1), []rune(text))
		return s
	}
	for _, text := range []string{"[Username@host directory] $", "Username@host:~$", "$", "#"} {
		var detector ShellDetector
		detector.Observe(makeScreen("application", 1))
		s := makeScreen(text, 1)
		s.Generation = 1
		if !detector.Observe(s) {
			t.Fatal("new shell prompt missed", text)
		}
		if detector.Observe(s) {
			t.Fatal("unchanged prompt repeated", text)
		}
	}
	for _, text := range []string{"Password:", "Confirm? [y/n]", "<Username> $", "<Username@host> $", "press any key to continue", "Worked for 2s • 1:00 PM"} {
		var detector ShellDetector
		detector.Observe(makeScreen("application", 1))
		if detector.Observe(makeScreen(text, 1)) {
			t.Fatal("non-shell prompt", text)
		}
	}
	var detector ShellDetector
	s := makeScreen("$", 0)
	detector.Observe(s)
	s.Y = 1
	if detector.Observe(s) {
		t.Fatal("old prompt became fresh after cursor motion")
	}
}