package compose

import "testing"

const hallRaw = "https://forge.example/coulomb/hall-of-helix/raw/branch/main"
const fallback = "https://forge.example/coulomb/pr-hall-of-helix/raw/branch/main/assets/helix-forge.png"

func TestResolveVisualPrefersRenderedPortrait(t *testing.T) {
	entry := "# Seat\n\n## Visual prompt\n\n> Constellation dialect.\n\n![Tegwick at work](../visuals/bernd-how-it-started.png)\n\n## Handoff\n"
	v, err := ResolveVisual(entry, hallRaw, fallback)
	if err != nil {
		t.Fatal(err)
	}
	if v.Kind != VisualPortrait || v.Path != "visuals/bernd-how-it-started.png" ||
		v.URL != hallRaw+"/visuals/bernd-how-it-started.png" {
		t.Fatalf("got %+v", v)
	}
}

func TestResolveVisualPromptWithoutPortraitNeedsRender(t *testing.T) {
	entry := "# Seat\n\n## Visual prompt\n\n> Constellation dialect. Square.\n> Brass scales.\n\n" +
		"<!-- ![scales](../visuals/claude-x-scales.jpg) -->\n\n" +
		"_Draft: portrait not yet rendered, expected as `claude-x-scales.jpg`._\n\n## Handoff\n"
	v, err := ResolveVisual(entry, hallRaw, fallback)
	if err != nil {
		t.Fatal(err)
	}
	if v.Kind != VisualNeedsRender || v.URL != "" {
		t.Fatalf("a commented-out portrait or the fallback was used: %+v", v)
	}
	if v.Prompt != "Constellation dialect. Square. Brass scales." {
		t.Fatalf("prompt = %q", v.Prompt)
	}
	if v.Target != "visuals/claude-x-scales.jpg" {
		t.Fatalf("target = %q", v.Target)
	}
}

func TestResolveVisualFallsBackOnlyWithoutPrompt(t *testing.T) {
	for _, entry := range []string{"", "# Seat\n\n## Handoff\n\nNothing visual.\n"} {
		v, err := ResolveVisual(entry, hallRaw, fallback)
		if err != nil {
			t.Fatal(err)
		}
		if v.Kind != VisualFallback || v.URL != fallback {
			t.Fatalf("entry %q: got %+v", entry, v)
		}
	}
	if _, err := ResolveVisual("", hallRaw, ""); err == nil {
		t.Fatal("resolved with no fallback configured")
	}
}

func TestResolveVisualIgnoresExternalImages(t *testing.T) {
	entry := "# Seat\n\n![badge](https://img.example/visuals/x.png)\n"
	v, err := ResolveVisual(entry, hallRaw, fallback)
	if err != nil {
		t.Fatal(err)
	}
	if v.Kind != VisualFallback {
		t.Fatalf("got %+v", v)
	}
}

func TestResolveVisualTargetFromBareFileName(t *testing.T) {
	entry := "# Seat\n\n## Visual prompt\n\n> Scales.\n\n_Draft: expected under `visuals/` as `claude-y-scales.jpg`._\n"
	v, err := ResolveVisual(entry, hallRaw, fallback)
	if err != nil {
		t.Fatal(err)
	}
	if v.Target != "visuals/claude-y-scales.jpg" {
		t.Fatalf("target = %q", v.Target)
	}
}