import { describe, expect, it } from "vitest";

import { blockRegistry, resolveBlock, validatePageBlocks } from "./registry";

const id = "7d9be7bb-185f-43e8-a5c1-43a05acdebec";

describe("block registry", () => {
  it("provides validation and migration for every schema", () => {
    for (const definition of Object.values(blockRegistry)) {
      expect(definition.currentVersion).toBe(1);
      expect(definition.migrations[0]).toBeTypeOf("function");
    }
  });

  it("migrates and validates a legacy block", () => {
    const resolution = resolveBlock({
      id,
      type: "callout",
      schemaVersion: 0,
      sortOrder: 0,
      config: { body: "จังหวะนี้ควรเก็บพลังงานไว้", tone: "tip" },
    });

    expect(resolution.kind).toBe("ready");
    if (resolution.kind === "ready") {
      expect(resolution.block.schemaVersion).toBe(1);
      expect(resolution.block.responsiveLayout).toMatchObject({
        width: "content",
      });
    }
  });

  it("keeps unknown and future blocks safe", () => {
    expect(
      resolveBlock({ id, type: "future-widget", schemaVersion: 1, config: {}, sortOrder: 0 }),
    ).toMatchObject({ kind: "unsupported", reason: "unknown-type" });
    expect(
      resolveBlock({ id, type: "callout", schemaVersion: 99, config: {}, sortOrder: 0 }),
    ).toMatchObject({ kind: "unsupported", reason: "future-version" });
  });

  it("rejects unsafe or malformed configuration without throwing", () => {
    const resolution = resolveBlock({
      id,
      type: "links",
      schemaVersion: 1,
      sortOrder: 0,
      config: {
        links: [
          {
            id: "2b21ac85-eb39-4f4d-89ce-a26929417981",
            label: "ไม่ปลอดภัย",
            href: "javascript:alert(1)",
          },
        ],
      },
    });

    expect(resolution.kind).toBe("invalid");
  });

  it("enforces chart series and an immutable accessible table fallback", () => {
    const base = {
      id,
      type: "comparison-chart",
      schemaVersion: 1,
      sortOrder: 0,
      config: {
        dataSourceId: "495248af-d20a-4e59-be25-a982398df917",
        categoryField: "name",
        series: [{ field: "damage", label: "ดาเมจ", color: "chart-1" }],
        presentation: "horizontal-bar",
        normalization: "raw",
        sort: "authored",
        showValues: true,
        showLegend: false,
      },
    } as const;

    const valid = resolveBlock(base);
    expect(valid.kind).toBe("ready");
    if (valid.kind === "ready") {
      expect(valid.block.config.tableFallback).toBe(true);
    }

    expect(
      resolveBlock({
        ...base,
        config: { ...base.config, tableFallback: false },
      }).kind,
    ).toBe("invalid");
    expect(
      resolveBlock({
        ...base,
        config: {
          ...base.config,
          series: Array.from({ length: 7 }, (_, index) => ({
            field: `value_${index}`,
            label: `Series ${index}`,
            color: "chart-1",
          })),
        },
      }).kind,
    ).toBe("invalid");
  });

  it("detects duplicate stable ids while preserving author order", () => {
    const results = validatePageBlocks([
      {
        id,
        type: "separator",
        schemaVersion: 1,
        config: {},
        sortOrder: 2,
      },
      {
        id,
        type: "separator",
        schemaVersion: 1,
        config: {},
        sortOrder: 1,
      },
    ]);

    expect(results[0].kind).toBe("ready");
    expect(results[1].kind).toBe("invalid");
  });
});