import { ImageResponse } from "next/og";

export const alt = "Acieb Énergie - Article";
export const size = { width: 1200, height: 600 };
export const contentType = "image/png";

const CATEGORY_LABELS: Record<string, string> = {
  actualites: "Actualités",
  guides: "Guides",
  reglementation: "Réglementation",
  "cas-clients": "Cas clients",
};

function slugToTitle(slug: string): string {
  return slug
    .replace(/-/g, " ")
    .replace(/\b\w/g, (c) => c.toUpperCase())
    .replace(/\b(2026|2025)\b/, "$1");
}

export default async function TwitterImage({
  params,
}: {
  params: Promise<{ category: string; slug: string }>;
}) {
  const { category, slug } = await params;
  const title = slugToTitle(slug);
  const categoryLabel = CATEGORY_LABELS[category] ?? category;

  return new ImageResponse(
    (
      <div
        style={{
          width: "100%",
          height: "100%",
          display: "flex",
          flexDirection: "column",
          justifyContent: "space-between",
          padding: "50px 70px",
          background: "linear-gradient(135deg, #1e293b 0%, #0f172a 100%)",
        }}
      >
        <div
          style={{
            display: "flex",
            padding: "8px 20px",
            background: "rgba(251, 76, 1, 0.15)",
            borderRadius: 24,
            color: "#FB4C01",
            fontSize: 20,
            fontWeight: 600,
            alignSelf: "flex-start",
          }}
        >
          {categoryLabel}
        </div>

        <div
          style={{
            display: "flex",
            fontSize: title.length > 80 ? 38 : title.length > 50 ? 44 : 52,
            fontWeight: 700,
            color: "#ffffff",
            lineHeight: 1.2,
            letterSpacing: "-0.02em",
          }}
        >
          {title.length > 120 ? `${title.slice(0, 117)}...` : title}
        </div>

        <div style={{ display: "flex", alignItems: "center", gap: 16 }}>
          <svg
            width="32"
            height="32"
            viewBox="0 0 28 29"
            fill="none"
            xmlns="http://www.w3.org/2000/svg"
          >
            <path
              d="M4.53553 16.0355C2.58291 14.0829 2.58291 10.9171 4.53553 8.96447L10.1924 3.30761C12.145 1.35499 15.3108 1.35499 17.2635 3.30761L22.9203 8.96447C24.8729 10.9171 24.8729 14.0829 22.9203 16.0355L17.2635 21.6924C15.3108 23.645 12.145 23.645 10.1924 21.6924L4.53553 16.0355Z"
              fill="#FB4C01"
            />
          </svg>
          <div
            style={{
              display: "flex",
              fontSize: 26,
              fontWeight: 600,
              color: "#e2e8f0",
            }}
          >
            Acieb Énergie
          </div>
        </div>
      </div>
    ),
    { ...size },
  );
}