/*
 * Copyright 2021-2024 Avaiga Private Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */

import React from "react";
import { render, waitFor } from "@testing-library/react";
import "@testing-library/jest-dom";
import { ThemeProvider } from "@mui/material/styles";
import { createTheme } from "@mui/material/styles";

import Metric from "./Metric";

const template = {
    layout: {
        colorscale: {
            diverging: [
                [0, "#8e0152"],
                [0.1, "#c51b7d"],
                [0.2, "#de77ae"],
                [0.3, "#f1b6da"],
                [0.4, "#fde0ef"],
                [0.5, "#f7f7f7"],
                [0.6, "#e6f5d0"],
                [0.7, "#b8e186"],
                [0.8, "#7fbc41"],
                [0.9, "#4d9221"],
                [1, "#276419"],
            ],
            sequential: [
                [0, "#0d0887"],
                [0.1111111111111111, "#46039f"],
                [0.2222222222222222, "#7201a8"],
                [0.3333333333333333, "#9c179e"],
                [0.4444444444444444, "#bd3786"],
                [0.5555555555555556, "#d8576b"],
                [0.6666666666666666, "#ed7953"],
                [0.7777777777777778, "#fb9f3a"],
                [0.8888888888888888, "#fdca26"],
                [1, "#f0f921"],
            ],
            sequentialminus: [
                [0, "#0d0887"],
                [0.1111111111111111, "#46039f"],
                [0.2222222222222222, "#7201a8"],
                [0.3333333333333333, "#9c179e"],
                [0.4444444444444444, "#bd3786"],
                [0.5555555555555556, "#d8576b"],
                [0.6666666666666666, "#ed7953"],
                [0.7777777777777778, "#fb9f3a"],
                [0.8888888888888888, "#fdca26"],
                [1, "#f0f921"],
            ],
        },
        paper_bgcolor: "rgb(255,0,0)",
    },
};

const colorMap = {
    20: "red",
    40: null,
    60: "blue",
    80: null,
};

const darkTemplate = {
    layout: {
        colorscale: {
            diverging: [
                [0, "#8e0152"],
                [0.1, "#c51b7d"],
                [0.2, "#de77ae"],
                [0.3, "#f1b6da"],
                [0.4, "#fde0ef"],
                [0.5, "#f7f7f7"],
                [0.6, "#e6f5d0"],
                [0.7, "#b8e186"],
                [0.8, "#7fbc41"],
                [0.9, "#4d9221"],
                [1, "#276419"],
            ],
            sequential: [
                [0, "#0d0887"],
                [0.1111111111111111, "#46039f"],
                [0.2222222222222222, "#7201a8"],
                [0.3333333333333333, "#9c179e"],
                [0.4444444444444444, "#bd3786"],
                [0.5555555555555556, "#d8576b"],
                [0.6666666666666666, "#ed7953"],
                [0.7777777777777778, "#fb9f3a"],
                [0.8888888888888888, "#fdca26"],
                [1, "#f0f921"],
            ],
            sequentialminus: [
                [0, "#0d0887"],
                [0.1111111111111111, "#46039f"],
                [0.2222222222222222, "#7201a8"],
                [0.3333333333333333, "#9c179e"],
                [0.4444444444444444, "#bd3786"],
                [0.5555555555555556, "#d8576b"],
                [0.6666666666666666, "#ed7953"],
                [0.7777777777777778, "#fb9f3a"],
                [0.8888888888888888, "#fdca26"],
                [1, "#f0f921"],
            ],
        },
        paper_bgcolor: "rgb(31,47,68)",
    },
};

const lightTemplate = {
    layout: {
        colorscale: {
            diverging: [
                [0, "#053061"],
                [0.1, "#2166ac"],
                [0.2, "#4393c3"],
                [0.3, "#92c5de"],
                [0.4, "#d1e5f0"],
                [0.5, "#f7f7f7"],
                [0.6, "#fddbc7"],
                [0.7, "#f4a582"],
                [0.8, "#d6604d"],
                [0.9, "#b2182b"],
                [1, "#67001f"],
            ],
            sequential: [
                [0, "#f7fcf5"],
                [0.1111111111111111, "#e5f5e0"],
                [0.2222222222222222, "#c7e9c0"],
                [0.3333333333333333, "#a1d99b"],
                [0.4444444444444444, "#74c476"],
                [0.5555555555555556, "#41ab5d"],
                [0.6666666666666666, "#238b45"],
                [0.7777777777777778, "#006d2c"],
                [0.8888888888888888, "#00441b"],
                [1, "#000000"],
            ],
            sequentialminus: [
                [0, "#f7fcf5"],
                [0.1111111111111111, "#e5f5e0"],
                [0.2222222222222222, "#c7e9c0"],
                [0.3333333333333333, "#a1d99b"],
                [0.4444444444444444, "#74c476"],
                [0.5555555555555556, "#41ab5d"],
                [0.6666666666666666, "#238b45"],
                [0.7777777777777778, "#006d2c"],
                [0.8888888888888888, "#00441b"],
                [1, "#000000"],
            ],
        },
        paper_bgcolor: "rgb(255,255,255)",
    },
};

describe("Metric Component", () => {
    it("renders", async () => {
        const { container } = render(<Metric className="test" />);
        const elt = container.querySelector(".test");
        expect(elt?.tagName).toBe("DIV");
    });

    it("displays the right info for class", async () => {
        const { container } = render(<Metric className="test" />);
        const elt = container.querySelector(".test");
        expect(elt).toHaveClass("test");
    });

    it("sets the title when provided", async () => {
        const title = "Test Title";
        const { container } = render(<Metric title={title} />);
        await waitFor(() => {
            const titleElement = container.querySelector(".gtitle");
            if (!titleElement) {
                throw new Error("Title element not found");
            }
            expect(titleElement.textContent).toContain(title);
        });
    });

    it("logs an error when template prop is a malformed JSON string", () => {
        const consoleSpy = jest.spyOn(console, "info");
        const malformedJson = "{ key: 'value'";
        render(<Metric template={malformedJson} />);
        expect(consoleSpy).toHaveBeenCalledWith(expect.stringContaining("Error while parsing Metric.template"));
        consoleSpy.mockRestore();
    });

    it("logs an error when colorMap prop is a malformed JSON string", () => {
        const consoleSpy = jest.spyOn(console, "info");
        const malformedJson = "{ key: 'value'"; // missing closing brace
        render(<Metric colorMap={malformedJson} />);
        expect(consoleSpy).toHaveBeenCalledWith(expect.stringContaining("Error parsing color_map value (metric)"));
        consoleSpy.mockRestore();
    });

    it("sets the template when provided", async () => {
        const { container } = render(<Metric template={JSON.stringify(template)} />);
        await waitFor(() => {
            const elt = container.querySelector(".main-svg");
            expect(elt).toHaveStyle({
                backgroundColor: "rgb(255, 0, 0)",
            });
        });
    });

    it("processes colorMap prop correctly", async () => {
        const { container } = render(<Metric colorMap={JSON.stringify(colorMap)} />);
        await waitFor(() => {
            const elements = container.querySelectorAll(".bg-arc");
            const redElt = Array.from(elements[1].children);
            const redEltHasRedFill = redElt.some((elt) => (elt as HTMLElement).style.fill === "rgb(255, 0, 0)");
            expect(redEltHasRedFill).toBeTruthy();

            const blueElt = Array.from(elements[2].children);
            const blueEltHasBlueFill = blueElt.some((elt) => (elt as HTMLElement).style.fill === "rgb(0, 0, 255)");
            expect(blueEltHasBlueFill).toBeTruthy();
        });
    });

    it("processes delta prop correctly when delta is defined", async () => {
        const { container } = render(<Metric delta={10} />);
        await waitFor(() => {
            const elt = container.querySelector(".delta");
            if (elt) {
                expect(elt.textContent).toContain("10");
            } else {
                throw new Error("Element with class .delta not found");
            }
        });
    });

    it("applies style correctly when deltaColor is set", async () => {
        const { container } = render(<Metric delta={10} deltaColor="#FF4136" />);
        await waitFor(() => {
            const elt = container.querySelector(".delta");
            expect(elt).toHaveStyle({
                fill: "rgb(255, 65, 54)",
            });
        });
    });

    it("applies style correctly when deltaColor is set invert", async () => {
        const { container } = render(<Metric delta={10} deltaColor="invert" />);
        await waitFor(() => {
            const elt = container.querySelector(".delta");
            expect(elt).toHaveStyle({
                fill: "rgb(255, 65, 54)",
            });
        });
    });

    it("processes type and threshold props correctly when type is linear", async () => {
        const { container } = render(<Metric type="linear" threshold={50} />);
        await waitFor(() => {
            const elt = container.querySelector(".bullet");
            expect(elt).toBeInTheDocument();
        });
    });

    it("processes type and threshold props correctly when type is not linear", async () => {
        const { container } = render(<Metric type="angular" threshold={50} />);
        await waitFor(() => {
            const elt = container.querySelector(".angular");
            expect(elt).toBeInTheDocument();
        });
    });

    it("applies style correctly when height and width are undefined", async () => {
        const { container } = render(<Metric />);
        await waitFor(() => {
            const elt = container.querySelector(".js-plotly-plot");
            expect(elt).toHaveStyle({
                width: "20vw",
                height: "20vh",
            });
        });
    });

    it("applies style correctly when height is set to 100px", async () => {
        const { container } = render(<Metric height="100px" />);
        await waitFor(() => {
            const elt = container.querySelector(".js-plotly-plot");
            expect(elt).toHaveStyle({
                height: "100px",
            });
        });
    });

    it("applies style correctly when height is set to 30em", async () => {
        const { container } = render(<Metric height="30em" />);
        await waitFor(() => {
            const elt = container.querySelector(".js-plotly-plot");
            expect(elt).toHaveStyle({
                height: "30em",
            });
        });
    });

    it("applies style correctly when height is set to 30%", async () => {
        const { container } = render(<Metric height="30%" />);
        await waitFor(() => {
            const elt = container.querySelector(".js-plotly-plot");
            expect(elt).toHaveStyle({
                height: "30%",
            });
        });
    });

    it("applies style correctly when height is set to 30vh", async () => {
        const { container } = render(<Metric height="30vh" />);
        await waitFor(() => {
            const elt = container.querySelector(".js-plotly-plot");
            expect(elt).toHaveStyle({
                height: "30vh",
            });
        });
    });

    it("applies style correctly when height is set to 30vw", async () => {
        const { container } = render(<Metric height="30vw" />);
        await waitFor(() => {
            const elt = container.querySelector(".js-plotly-plot");
            expect(elt).toHaveStyle({
                height: "30vw",
            });
        });
    });

    it("applies style correctly when width is set to 100px", async () => {
        const { container } = render(<Metric width="100px" />);
        await waitFor(() => {
            const elt = container.querySelector(".js-plotly-plot");
            expect(elt).toHaveStyle({
                width: "100px",
            });
        });
    });

    it("applies style correctly when width is set to 30em", async () => {
        const { container } = render(<Metric width="30em" />);
        await waitFor(() => {
            const elt = container.querySelector(".js-plotly-plot");
            expect(elt).toHaveStyle({
                width: "30em",
            });
        });
    });

    it("applies style correctly when width is set to 30%", async () => {
        const { container } = render(<Metric width="30%" />);
        await waitFor(() => {
            const elt = container.querySelector(".js-plotly-plot");
            expect(elt).toHaveStyle({
                width: "30%",
            });
        });
    });

    it("applies style correctly when width is set to 30vh", async () => {
        const { container } = render(<Metric width="30vh" />);
        await waitFor(() => {
            const elt = container.querySelector(".js-plotly-plot");
            expect(elt).toHaveStyle({
                width: "30vh",
            });
        });
    });

    it("applies style correctly when width is set to 30vw", async () => {
        const { container } = render(<Metric width="30vw" />);
        await waitFor(() => {
            const elt = container.querySelector(".js-plotly-plot");
            expect(elt).toHaveStyle({
                width: "30vw",
            });
        });
    });


    it("processes type prop correctly when type is none (string)", async () => {
        const { container } = render(<Metric type="none" />);
        await waitFor(() => {
            const angularElm = container.querySelector(".angular");
            const angularAxis = container.querySelector(".angularaxis");
            expect(angularElm).not.toBeInTheDocument();
            expect(angularAxis).not.toBeInTheDocument();
        });
    });

    it("processes type prop correctly when type is None", async () => {
        const { container } = render(<Metric type="None" />);
        await waitFor(() => {
            const angularElm = container.querySelector(".angular");
            const angularAxis = container.querySelector(".angularaxis");
            expect(angularElm).not.toBeInTheDocument();
            expect(angularAxis).not.toBeInTheDocument();
        });
    });

    it("processes template_Dark_ prop correctly when theme is dark", async () => {
        const darkTheme = createTheme({
            palette: {
                mode: "dark",
            },
        });

        const { container } = render(
            <ThemeProvider theme={darkTheme}>
                <Metric template_Dark_={JSON.stringify(darkTemplate)} />
            </ThemeProvider>,
        );
        await waitFor(() => {
            const elt = container.querySelector(".main-svg");
            expect(elt).toHaveStyle({
                backgroundColor: "rgb(31, 47, 68)",
            });
        });
    });

    it("processes template_Light_ prop correctly when theme is not dark", async () => {
        const lightTheme = createTheme({
            palette: {
                mode: "light",
            },
        });

        const { container } = render(
            <ThemeProvider theme={lightTheme}>
                <Metric template_Light_={JSON.stringify(lightTemplate)} />
            </ThemeProvider>,
        );
        await waitFor(() => {
            const elt = container.querySelector(".main-svg");
            expect(elt).toHaveStyle({
                backgroundColor: "rgb(255, 255, 255)",
            });
        });
    });

    it.skip("logs an error when template_Dark_ prop is not a valid JSON string", () => {
        const consoleSpy = jest.spyOn(console, "info");
        render(<Metric template_Dark_="not a valid JSON string" />);
        expect(consoleSpy).toHaveBeenCalledWith(expect.stringContaining("Error while parsing Metric.template"));
        consoleSpy.mockRestore();
    }); // TODO: Not working at the moment, need to fix

    it("logs an error when template_Light_ prop is not a valid JSON string", () => {
        const consoleSpy = jest.spyOn(console, "info");
        render(<Metric template_Light_="not a valid JSON string" />);
        expect(consoleSpy).toHaveBeenCalledWith(expect.stringContaining("Error while parsing Metric.template"));
        consoleSpy.mockRestore();
    });
});