package processing

import (
	"strings"
	"testing"
)

func TestPlainDescriptionFromAny_arrayAndHTML(t *testing.T) {
	got := PlainDescriptionFromAny([]any{"Hello<br>World", "Second"})
	if got != "Hello\nWorld\nSecond" {
		t.Fatalf("array+html: %q", got)
	}
	got = PlainDescriptionFromAny(map[string]any{"#text": "Plain &amp; ok"})
	if got != "Plain & ok" {
		t.Fatalf("#text: %q", got)
	}
	if PlainDescriptionFromAny(nil) != "" {
		t.Fatal("nil should be empty")
	}
}

func TestDescriptionFromAny_preservesFormulaHTML(t *testing.T) {
	htmlDesc := `<h1>Anker Soundcore Space One Pro</h1><p>Zložljive ANC slušalke.</p><ul><li>Bluetooth</li></ul>`
	got := DescriptionFromAny(htmlDesc)
	if !strings.Contains(got, "<h1>") || !strings.Contains(got, "<p>") || !strings.Contains(got, "<ul>") {
		t.Fatalf("expected formula HTML preserved, got %q", got)
	}
	// Array unwrap should still keep tags.
	got = DescriptionFromAny([]any{htmlDesc})
	if !strings.Contains(got, "<h1>") || !strings.Contains(got, "</p>") {
		t.Fatalf("array unwrap should keep HTML, got %q", got)
	}
	// Plain path still strips (meta/SEO / feed normalize).
	plain := PlainDescriptionFromAny(htmlDesc)
	if strings.Contains(plain, "<h1>") || strings.Contains(plain, "<p>") {
		t.Fatalf("PlainDescriptionFromAny should strip tags, got %q", plain)
	}
}

func TestNormalizeMapped_descriptionArrayBecomesPlainString(t *testing.T) {
	got := NormalizeMapped(map[string]any{
		"description": []any{"Line1<br/>A", "Line2"},
		"name":        "Widget",
	}, nil)
	desc, ok := got["description"].(string)
	if !ok {
		t.Fatalf("description should be string, got %T %v", got["description"], got["description"])
	}
	if desc != "Line1\nA\nLine2" {
		t.Fatalf("description=%q", desc)
	}
}

func TestNormalizeMapped_eprelIDAlias(t *testing.T) {
	got := NormalizeMapped(map[string]any{"EPRELID": "246834"}, nil)
	if got["eprel_id"] != "246834" {
		t.Fatalf("eprel_id=%v", got["eprel_id"])
	}
}

func TestStringFromAny_flattensArray(t *testing.T) {
	got := stringFromAny([]any{"a", "b"})
	if got != "a b" {
		t.Fatalf("got %q", got)
	}
}

func TestCanonicalizeAttrKey_eprel(t *testing.T) {
	if canonicalizeAttrKey("EPRELID") != "eprel_id" {
		t.Fatalf("got %q", canonicalizeAttrKey("EPRELID"))
	}
	if canonicalizeAttrKey("eprel") != "eprel_id" {
		t.Fatalf("got %q", canonicalizeAttrKey("eprel"))
	}
}

func TestPlainDescriptionFromStored_jsonArrayString(t *testing.T) {
	got := plainDescriptionFromStored(`["Hello<br>World"]`)
	if got != "Hello\nWorld" {
		t.Fatalf("got %q", got)
	}
}