package render

import (
	"image/color"
	"testing"
	"time"

	"silverpose/v2/internal/fall"
)

func TestRenderUsesCriticalBorderOnlyForConfirmed(t *testing.T) {
	bgr := make([]byte, 4*3*3)
	for index := range bgr {
		bgr[index] = 64
	}
	normal, err := Render(bgr, 4, 3, fall.FrameResult{}, time.Date(2026, 7, 22, 8, 0, 0, 0, time.UTC))
	if err != nil {
		t.Fatal(err)
	}
	confirmed, err := Render(bgr, 4, 3, fall.FrameResult{People: []fall.PersonAnalysis{{State: fall.Confirmed}}}, time.Date(2026, 7, 22, 8, 0, 0, 0, time.UTC))
	if err != nil {
		t.Fatal(err)
	}
	if got := normal.RGBAAt(0, 0); got != (color.RGBA{R: 64, G: 64, B: 64, A: 255}) {
		t.Fatalf("normal border = %#v", got)
	}
	if got := confirmed.RGBAAt(0, 0); got != criticalColor {
		t.Fatalf("confirmed border = %#v, want %#v", got, criticalColor)
	}
}

func TestRenderRejectsInvalidBGRLength(t *testing.T) {
	_, err := Render([]byte{1, 2, 3}, 2, 2, fall.FrameResult{}, time.Time{})
	if err == nil {
		t.Fatal("expected invalid frame length error")
	}
}