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

import type { LovelaceConfig } from "../../../../src/data/lovelace/config/types";
import type { LovelaceSectionConfig } from "../../../../src/data/lovelace/config/section";
import type { LovelaceViewConfig } from "../../../../src/data/lovelace/config/view";
import {
  duplicateSection,
  moveCardToContainer,
  swapView,
} from "../../../../src/panels/lovelace/editor/config-util";

describe("moveCardToContainer", () => {
  it("move a card to an empty view", () => {
    const config: LovelaceConfig = {
      views: [
        {},
        {
          cards: [{ type: "card1" }, { type: "card2" }],
        },
      ],
    };

    const result = moveCardToContainer(config, [1, 0], [0]);
    const expected: LovelaceConfig = {
      views: [
        {
          cards: [{ type: "card1" }],
        },
        {
          cards: [{ type: "card2" }],
        },
      ],
    };
    assert.deepEqual(expected, result);
  });

  it("move a card to different view", () => {
    const config: LovelaceConfig = {
      views: [
        {
          cards: [{ type: "v1-c1" }, { type: "v1-c2" }],
        },
        {
          cards: [{ type: "v2-c1" }, { type: "v2-c2" }],
        },
      ],
    };

    const result = moveCardToContainer(config, [1, 0], [0]);
    const expected: LovelaceConfig = {
      views: [
        {
          cards: [{ type: "v1-c1" }, { type: "v1-c2" }, { type: "v2-c1" }],
        },
        {
          cards: [{ type: "v2-c2" }],
        },
      ],
    };
    assert.deepEqual(expected, result);
  });

  it("move a card to the same view", () => {
    const config: LovelaceConfig = {
      views: [
        {
          cards: [{ type: "v1-c1" }, { type: "v1-c2" }],
        },
        {
          cards: [{ type: "v2-c1" }, { type: "v2-c2" }],
        },
      ],
    };

    const result = () => {
      moveCardToContainer(config, [1, 0], [1]);
    };
    assert.throws(
      result,
      Error,
      "You cannot move a card to the view or section it is in."
    );
  });
});

describe("swapView", () => {
  it("swaps 2 view", () => {
    const config: LovelaceConfig = {
      views: [
        {
          title: "view1",
          cards: [],
        },
        {
          title: "view2",
          cards: [],
        },
      ],
    };

    const result = swapView(config, 1, 0);
    const expected: LovelaceConfig = {
      views: [
        {
          title: "view2",
          cards: [],
        },
        {
          title: "view1",
          cards: [],
        },
      ],
    };
    assert.deepEqual(expected, result);
  });

  it("swaps the same views", () => {
    const config: LovelaceConfig = {
      views: [
        {
          title: "view1",
          cards: [],
        },
        {
          title: "view2",
          cards: [],
        },
      ],
    };

    const result = swapView(config, 0, 0);
    const expected: LovelaceConfig = {
      views: [
        {
          title: "view1",
          cards: [],
        },
        {
          title: "view2",
          cards: [],
        },
      ],
    };
    assert.deepEqual(expected, result);
  });
});

describe("duplicateSection", () => {
  it("inserts a clone immediately after the original section", () => {
    const config: LovelaceConfig = {
      views: [
        {
          sections: [
            { type: "grid", cards: [{ type: "button" }] },
            { type: "grid", cards: [{ type: "heading" }] },
          ],
        },
      ],
    };

    const result = duplicateSection(config, 0, 0);

    const expected: LovelaceConfig = {
      views: [
        {
          sections: [
            { type: "grid", cards: [{ type: "button" }] },
            { type: "grid", cards: [{ type: "button" }] },
            { type: "grid", cards: [{ type: "heading" }] },
          ],
        },
      ],
    };
    assert.deepEqual(expected, result);
  });

  it("preserves all cards and properties within the cloned section", () => {
    const config: LovelaceConfig = {
      views: [
        {
          sections: [
            {
              type: "grid",
              column_span: 2,
              cards: [{ type: "button" }, { type: "heading" }],
            },
          ],
        },
      ],
    };

    const result = duplicateSection(config, 0, 0);
    const view = result.views[0] as LovelaceViewConfig;

    assert.equal(view.sections!.length, 2);
    assert.deepEqual(view.sections![0], view.sections![1]);
  });

  it("produces a deep clone, changes do not affect the original", () => {
    const config: LovelaceConfig = {
      views: [
        {
          sections: [
            {
              type: "grid",
              column_span: 2,
              cards: [{ type: "button" }, { type: "heading" }],
            },
          ],
        },
      ],
    };

    const result = duplicateSection(config, 0, 0);
    const resultSections = (result.views[0] as LovelaceViewConfig).sections!;

    assert.equal(resultSections.length, 2);
    assert.deepEqual(resultSections[0], resultSections[1]);

    (resultSections[1] as LovelaceSectionConfig).cards![0].type = "heading";

    assert.equal(
      (resultSections[0] as LovelaceSectionConfig).cards![0].type,
      "button"
    );
  });
});