import { describe, expect, it } from "vitest";
import type { AnnotationDTO, AnnotationData, AnnotationType } from "@/db/schema";
import {
  DRAW_PENS,
  STAMP_PRESETS,
  annotationNote,
  annotationPreviewText,
  annotationTypeLabel,
  effectiveDrawOpacity,
} from "@/utils/annotation-display";

const dto = (type: AnnotationType, data: AnnotationData): AnnotationDTO => ({
  id: "00000000-0000-0000-0000-000000000001",
  fileId: "00000000-0000-0000-0000-000000000002",
  pageIndex: 0,
  userId: "user-1",
  userName: "ทดสอบ",
  type,
  data,
  createdAt: "2026-01-01T00:00:00.000Z",
  updatedAt: "2026-01-01T00:00:00.000Z",
  resolved: false,
  resolvedAt: null,
});

describe("annotationTypeLabel", () => {
  it("HIGHLIGHT ตาม style + fallback เมื่อไม่ระบุ style", () => {
    expect(
      annotationTypeLabel(dto("HIGHLIGHT", { text: "a", color: "#000", rects: [], style: "underline" })),
    ).toBe("เส้นใต้");
    expect(annotationTypeLabel(dto("HIGHLIGHT", { text: "a", color: "#000", rects: [] }))).toBe("ไฮไลต์");
  });

  it("ครบทุกชนิดที่เหลือ", () => {
    expect(annotationTypeLabel(dto("DRAW", { strokeColor: "#000", strokeWidth: 1, paths: [] }))).toBe("เส้นวาด");
    expect(annotationTypeLabel(dto("COMMENT", { position: { x: 0, y: 0 }, message: "m" }))).toBe("คอมเมนต์");
    expect(
      annotationTypeLabel(
        dto("SHAPE", { shape: "ellipse", rect: { x: 0, y: 0, width: 1, height: 1 }, strokeColor: "#000", strokeWidth: 1 }),
      ),
    ).toBe("รูปทรง (วงรี)");
    expect(annotationTypeLabel(dto("REDACTION", { rect: { x: 0, y: 0, width: 1, height: 1 } }))).toBe("ปิดพราง");
    expect(
      annotationTypeLabel(dto("TEXTBOX", { position: { x: 0, y: 0 }, text: "t", color: "#000", fontSize: 1 })),
    ).toBe("กล่องข้อความ");
    expect(annotationTypeLabel(dto("STAMP", { label: "สำคัญ", position: { x: 0, y: 0 }, scale: 18 }))).toBe("ตรายาง");
  });
});

describe("annotationPreviewText", () => {
  it("HIGHLIGHT ใช้ข้อความที่คลุม / ว่าง → placeholder", () => {
    expect(
      annotationPreviewText(dto("HIGHLIGHT", { text: "ข้อความที่คลุม", color: "#000", rects: [] })),
    ).toBe("ข้อความที่คลุม");
    expect(annotationPreviewText(dto("HIGHLIGHT", { text: "", color: "#000", rects: [] }))).toBe(
      "(ไม่มีข้อความ)",
    );
  });

  it("COMMENT → message, TEXTBOX → text, STAMP → label, DRAW → ข้อความตายตัว", () => {
    expect(
      annotationPreviewText(dto("COMMENT", { position: { x: 0, y: 0 }, message: "ดูจุดนี้" })),
    ).toBe("ดูจุดนี้");
    expect(
      annotationPreviewText(dto("TEXTBOX", { position: { x: 0, y: 0 }, text: "หมายเหตุ", color: "#000", fontSize: 1 })),
    ).toBe("หมายเหตุ");
    expect(
      annotationPreviewText(dto("STAMP", { label: "ตรวจสอบแล้ว", position: { x: 0, y: 0 }, scale: 18 })),
    ).toBe("ตรวจสอบแล้ว");
    expect(
      annotationPreviewText(dto("DRAW", { strokeColor: "#000", strokeWidth: 1, paths: [{ x: 0, y: 0 }] })),
    ).toBe("เส้นวาดอิสระ");
  });
});

describe("annotationNote", () => {
  it("มี note → คืนค่านั้น / ไม่มี → ช่องว่าง", () => {
    expect(
      annotationNote(dto("DRAW", { strokeColor: "#000", strokeWidth: 1, paths: [], note: "เหตุผล" })),
    ).toBe("เหตุผล");
    expect(annotationNote(dto("DRAW", { strokeColor: "#000", strokeWidth: 1, paths: [] }))).toBe("");
  });

  it("COMMENT (ไม่มี field note) → ช่องว่าง", () => {
    expect(annotationNote(dto("COMMENT", { position: { x: 0, y: 0 }, message: "m" }))).toBe("");
  });
});

describe("effectiveDrawOpacity", () => {
  it("opacity ที่เก็บชัดชนะเสมอ", () => {
    expect(effectiveDrawOpacity({ pen: "highlighter", opacity: 0.8 })).toBe(0.8);
    expect(effectiveDrawOpacity({ opacity: 0.3 })).toBe(0.3);
  });

  it("ไม่มี opacity → fallback ตาม preset ของ pen", () => {
    expect(effectiveDrawOpacity({ pen: "highlighter" })).toBe(DRAW_PENS.highlighter.opacity);
    expect(effectiveDrawOpacity({ pen: "pencil" })).toBe(DRAW_PENS.pencil.opacity);
  });

  it("ไม่มีทั้ง pen และ opacity → pencil", () => {
    expect(effectiveDrawOpacity({})).toBe(DRAW_PENS.pencil.opacity);
  });
});

describe("presets ที่ sidebar/export ใช้ร่วมกัน", () => {
  it("STAMP_PRESETS มีค่าตาม D7 (preset ข้อความเท่านั้น)", () => {
    expect(STAMP_PRESETS).toEqual(["ตรวจสอบแล้ว", "สำคัญ"]);
  });
});