import React from "react";
import { makeObservable, observable } from "mobx";

import {
    ClassInfo,
    EezObject,
    IMessage,
    makeDerivedClassInfo,
    MessageType,
    PropertyType
} from "project-editor/core/object";

import { ProjectType } from "project-editor/project/project";

import { LVGLWidget } from "./internal";
import { ProjectEditor } from "project-editor/project-editor-interface";
import {
    getChildOfObject,
    Message,
    propertyNotSetMessage
} from "project-editor/store";
import { specificGroup } from "project-editor/ui-components/PropertyGrid/groups";
import { escapeCString, unescapeCString } from "../widget-common";
import { IWasmFlowRuntime } from "eez-studio-types";
import type { LVGLCode } from "project-editor/lvgl/to-lvgl-code";

////////////////////////////////////////////////////////////////////////////////

// prettier-ignore
export const MATRIX_BUTTON_CTRL = {
    HIDDEN       : 0x0010, /**< Button hidden*/
    NO_REPEAT    : 0x0020, /**< Do not repeat press this button.*/
    DISABLED     : 0x0040, /**< Disable this button.*/
    CHECKABLE    : 0x0080, /**< The button can be toggled.*/
    CHECKED      : 0x0100, /**< Button is currently toggled (e.g. checked).*/
    CLICK_TRIG   : 0x0200, /**< 1: Send LV_EVENT_VALUE_CHANGE on CLICK, 0: Send LV_EVENT_VALUE_CHANGE on PRESS*/
    POPOVER      : 0x0400, /**< Show a popover when pressing this key*/
    RECOLOR      : 0x0800, /**< Enable text recoloring with `#color`*/
    CUSTOM_1     : 0x4000, /**< Custom free to use flag*/
    CUSTOM_2     : 0x8000, /**< Custom free to use flag*/
};

// 8: LV_BTNMATRIX_CTRL_
// 9: LV_BUTTONMATRIX_CTRL_

class LVGLMatrixButton extends EezObject {
    newLine: boolean;

    text: string;
    width: number;

    ctrlHidden: boolean;
    ctrlNoRepeat: boolean;
    ctrlDisabled: boolean;
    ctrlCheckable: boolean;
    ctrlChecked: boolean;
    ctrlClickTrig: boolean;
    ctrlPopover: boolean;
    ctrlRecolor: boolean;
    ctrlCustom1: boolean;
    ctrlCustom2: boolean;

    static classInfo: ClassInfo = {
        properties: [
            {
                name: "newLine",
                type: PropertyType.Boolean,
                checkboxStyleSwitch: true
            },
            {
                name: "text",
                type: PropertyType.String,
                hideInPropertyGrid: (button: LVGLMatrixButton) => button.newLine
            },
            {
                name: "width",
                type: PropertyType.Number,
                hideInPropertyGrid: (button: LVGLMatrixButton) => button.newLine
            },
            {
                name: "ctrlHidden",
                displayName: "HIDDEN",
                type: PropertyType.Boolean,
                checkboxStyleSwitch: true,
                hideInPropertyGrid: (button: LVGLMatrixButton) => button.newLine
            },
            {
                name: "ctrlNoRepeat",
                displayName: "NO_REPEAT",
                type: PropertyType.Boolean,
                checkboxStyleSwitch: true,
                hideInPropertyGrid: (button: LVGLMatrixButton) => button.newLine
            },
            {
                name: "ctrlDisabled",
                displayName: "DISABLED",
                type: PropertyType.Boolean,
                checkboxStyleSwitch: true,
                hideInPropertyGrid: (button: LVGLMatrixButton) => button.newLine
            },
            {
                name: "ctrlCheckable",
                displayName: "CHECKABLE",
                type: PropertyType.Boolean,
                checkboxStyleSwitch: true,
                hideInPropertyGrid: (button: LVGLMatrixButton) => button.newLine
            },
            {
                name: "ctrlChecked",
                displayName: "CHECKED",
                type: PropertyType.Boolean,
                checkboxStyleSwitch: true,
                hideInPropertyGrid: (button: LVGLMatrixButton) => button.newLine
            },
            {
                name: "ctrlClickTrig",
                displayName: "CLICK_TRIG",
                type: PropertyType.Boolean,
                checkboxStyleSwitch: true,
                hideInPropertyGrid: (button: LVGLMatrixButton) => button.newLine
            },
            {
                name: "ctrlPopover",
                displayName: "POPOVER",
                type: PropertyType.Boolean,
                checkboxStyleSwitch: true,
                hideInPropertyGrid: (button: LVGLMatrixButton) => button.newLine
            },
            {
                name: "ctrlRecolor",
                displayName: "RECOLOR",
                type: PropertyType.Boolean,
                checkboxStyleSwitch: true,
                hideInPropertyGrid: (button: LVGLMatrixButton) =>
                    button.newLine ||
                    ProjectEditor.getProject(button).settings.general
                        .lvglVersion == "9.0"
            },
            {
                name: "ctrlCustom1",
                displayName: "CUSTOM_1",
                type: PropertyType.Boolean,
                checkboxStyleSwitch: true,
                hideInPropertyGrid: (button: LVGLMatrixButton) => button.newLine
            },
            {
                name: "ctrlCustom2",
                displayName: "CUSTOM_2",
                type: PropertyType.Boolean,
                checkboxStyleSwitch: true,
                hideInPropertyGrid: (button: LVGLMatrixButton) => button.newLine
            }
        ],

        listLabel: (button: LVGLMatrixButton, collapsed: boolean) =>
            collapsed
                ? button.newLine
                    ? "New line"
                    : button.text
                    ? button.text
                    : "Text not set"
                : "",

        defaultValue: {
            text: "Btn",
            width: 1
        },

        check: (button: LVGLMatrixButton, messages: IMessage[]) => {
            if (!button.newLine) {
                if (!button.text) {
                    messages.push(propertyNotSetMessage(button, "text"));
                }

                if (button.width < 1 || button.width > 7) {
                    messages.push(
                        new Message(
                            MessageType.ERROR,
                            `The width must be in the range of 1..7`,
                            getChildOfObject(button, "width")
                        )
                    );
                }
            }
        }
    };

    override makeEditable() {
        super.makeEditable();

        makeObservable(this, {
            newLine: observable,
            text: observable,
            width: observable,
            ctrlHidden: observable,
            ctrlNoRepeat: observable,
            ctrlDisabled: observable,
            ctrlCheckable: observable,
            ctrlChecked: observable,
            ctrlClickTrig: observable,
            ctrlPopover: observable,
            ctrlRecolor: observable,
            ctrlCustom1: observable,
            ctrlCustom2: observable
        });
    }
}

export class LVGLButtonMatrixWidget extends LVGLWidget {
    static classInfo = makeDerivedClassInfo(LVGLWidget.classInfo, {
        enabledInComponentPalette: (projectType: ProjectType) =>
            projectType === ProjectType.LVGL,

        componentPaletteGroupName: "!1Basic",

        properties: [
            {
                name: "buttons",
                type: PropertyType.Array,
                typeClass: LVGLMatrixButton,
                propertyGridGroup: specificGroup,
                partOfNavigation: false,
                enumerable: false,
                defaultValue: []
            },
            {
                name: "oneCheck",
                type: PropertyType.Boolean,
                propertyGridGroup: specificGroup,
                checkboxStyleSwitch: true
            }
        ],

        defaultValue: {
            left: 0,
            top: 0,
            width: 240,
            height: 240,
            clickableFlag: true,
            buttons: [],
            oneCheck: false
        },

        icon: (
            <svg viewBox="0 0 522.753 522.752">
                <path
                    d="M151.891 58.183c0-13.072-10.595-23.677-23.677-23.677h-80.87C21.2 34.506 0 53.937 0 77.901c0 23.973 21.2 43.404 47.344 43.404h80.87c13.072 0 23.677-10.595 23.677-23.677zm185.426 0c0-13.072-10.596-23.677-23.677-23.677H209.104c-13.072 0-23.677 10.595-23.677 23.677v39.455c0 13.072 10.595 23.677 23.677 23.677H313.65c13.071 0 23.677-10.595 23.677-23.677V58.183zm138.092-23.667h-80.87c-13.071 0-23.677 10.595-23.677 23.677v39.455c0 13.072 10.596 23.677 23.677 23.677h80.87c26.145 0 47.344-19.431 47.344-43.404s-21.2-43.405-47.344-43.405M151.891 180.497c0-13.072-10.595-23.677-23.677-23.677h-80.87C21.2 156.82 0 176.251 0 200.215c0 23.973 21.2 43.395 47.344 43.395h80.87c13.072 0 23.677-10.595 23.677-23.677zm185.426 0c0-13.072-10.596-23.677-23.677-23.677H209.104c-13.072 0-23.677 10.595-23.677 23.677v39.445c0 13.072 10.595 23.677 23.677 23.677H313.65c13.071 0 23.677-10.596 23.677-23.677v-39.445zm138.092-23.667h-80.87c-13.071 0-23.677 10.595-23.677 23.677v39.445c0 13.072 10.596 23.677 23.677 23.677h80.87c26.145 0 47.344-19.421 47.344-43.395s-21.2-43.404-47.344-43.404M151.891 302.801c0-13.072-10.595-23.677-23.677-23.677h-80.87C21.2 279.125 0 298.545 0 322.51c0 23.973 21.2 43.404 47.344 43.404h80.87c13.072 0 23.677-10.596 23.677-23.678zm185.426 0c0-13.072-10.596-23.677-23.677-23.677H209.104c-13.072 0-23.677 10.595-23.677 23.677v39.445c0 13.072 10.595 23.678 23.677 23.678H313.65c13.071 0 23.677-10.596 23.677-23.678v-39.445zm138.092-23.667h-80.87c-13.071 0-23.677 10.595-23.677 23.677v39.445c0 13.072 10.596 23.676 23.677 23.676h80.87c26.145 0 47.344-19.43 47.344-43.404 0-23.973-21.2-43.394-47.344-43.394M128.214 401.438h-80.87C21.2 401.438 0 420.87 0 444.833c0 23.975 21.2 43.404 47.344 43.404h80.87c13.072 0 23.677-10.604 23.677-23.676v-39.455c0-13.072-10.605-23.668-23.677-23.668m185.436 0H209.104c-13.072 0-23.677 10.596-23.677 23.678v39.455c0 13.062 10.595 23.676 23.677 23.676H313.65c13.071 0 23.677-10.605 23.677-23.676v-39.455c-.01-13.082-10.605-23.678-23.677-23.678m161.759 0h-80.87c-13.071 0-23.677 10.596-23.677 23.678v39.455c0 13.062 10.596 23.676 23.677 23.676h80.87c26.145 0 47.344-19.432 47.344-43.404s-21.2-43.405-47.344-43.405"
                    fill="currentcolor"
                />
            </svg>
        ),

        lvgl: {
            parts: ["MAIN", "ITEMS"],
            defaultFlags:
                "CLICKABLE|CLICK_FOCUSABLE|GESTURE_BUBBLE|PRESS_LOCK|SCROLLABLE|SCROLL_CHAIN_HOR|SCROLL_CHAIN_VER|SCROLL_ELASTIC|SCROLL_MOMENTUM|SCROLL_WITH_ARROW|SNAPPABLE"
        },

        overrideEventParamExpressionType: (
            widget: LVGLButtonMatrixWidget,
            eventName: string
        ) => {
            // if (eventName == "VALUE_CHANGED") {
            //     return "integer";
            // }
            return undefined;
        }
    });

    buttons: LVGLMatrixButton[];
    oneCheck: boolean;

    _mapBuffer: number;
    _mapArray: Uint32Array;
    _ctrlMapBuffer: number;
    _buffersWasm: IWasmFlowRuntime;

    override makeEditable() {
        super.makeEditable();

        makeObservable(this, {
            buttons: observable,
            oneCheck: observable
        });
    }

    override toLVGLCode(code: LVGLCode) {
        if (code.isV9) {
            code.createObject("lv_buttonmatrix_create");
        } else {
            code.createObject("lv_btnmatrix_create");
        }

        const buttons = this.buttons ?? [];

        // buttons map
        let mapArray;
        let mapArg;
        if (code.lvglBuild) {
            const build = code.lvglBuild;

            build.blockStart(
                `static const char *map[${buttons.length + 1}] = {`
            );
            buttons.forEach(button => {
                build.line(
                    `${escapeCString(
                        button.newLine ? "\n" : button.text ? button.text : " "
                    )},`
                );
            });
            build.line(`NULL,`);
            build.blockEnd(`};`);

            mapArg = "map";
        } else {
            const runtime = code.pageRuntime!;

            mapArray = new Uint32Array(buttons.length + 1);
            for (let i = 0; i < buttons.length; i++) {
                let button = buttons[i];
                mapArray[i] = runtime.wasm.allocateUTF8(
                    unescapeCString(
                        button.newLine ? "\n" : button.text ? button.text : " "
                    )
                );
            }
            mapArray[buttons.length] = 0;

            const mapBuffer = runtime.wasm._malloc(
                mapArray.length * mapArray.BYTES_PER_ELEMENT
            );

            runtime.wasm.HEAPU32.set(mapArray, mapBuffer >> 2);

            mapArg = mapBuffer;
        }

        // buttons ctrl_map
        let ctrlMapArg;
        if (code.lvglBuild) {
            const textButtons = buttons.filter(button => !button.newLine);
            if (
                textButtons.length > 0 &&
                textButtons.find(
                    button =>
                        button.width != 1 ||
                        button.ctrlHidden ||
                        button.ctrlNoRepeat ||
                        button.ctrlDisabled ||
                        button.ctrlCheckable ||
                        button.ctrlChecked ||
                        button.ctrlClickTrig ||
                        button.ctrlPopover ||
                        (code.isV9 ? false : button.ctrlRecolor) ||
                        button.ctrlCustom1 ||
                        button.ctrlCustom2
                )
            ) {
                const build = code.lvglBuild;

                code.blockStart(
                    `static ${
                        code.isV9
                            ? "lv_buttonmatrix_ctrl_t "
                            : "lv_btnmatrix_ctrl_t "
                    }ctrl_map[${textButtons.length}] = {`
                );

                const prefix = code.isV9
                    ? " | LV_BUTTONMATRIX_CTRL_"
                    : " | LV_BTNMATRIX_CTRL_";

                textButtons.forEach(button => {
                    build.line(
                        `${
                            button.width < 1
                                ? 1
                                : button.width > 7
                                ? 7
                                : button.width
                        }${button.ctrlHidden ? prefix + "HIDDEN" : ""}${
                            button.ctrlNoRepeat ? prefix + "NO_REPEAT" : ""
                        }${button.ctrlDisabled ? prefix + "DISABLED" : ""}${
                            button.ctrlCheckable ? prefix + "CHECKABLE" : ""
                        }${button.ctrlChecked ? prefix + "CHECKED" : ""}${
                            button.ctrlClickTrig ? prefix + "CLICK_TRIG" : ""
                        }${button.ctrlPopover ? prefix + "POPOVER" : ""}${
                            !code.isV9 && button.ctrlRecolor
                                ? prefix + "RECOLOR"
                                : ""
                        }${button.ctrlCustom1 ? prefix + "CUSTOM_1" : ""}${
                            button.ctrlCustom2 ? prefix + "CUSTOM_2" : ""
                        },`
                    );
                });

                code.blockEnd(`};`);

                ctrlMapArg = "ctrl_map";
            }
        } else {
            const runtime = code.pageRuntime!;

            const textButtons = buttons.filter(button => !button.newLine);
            let ctrlMapBuffer;
            if (textButtons.length > 0) {
                const ctrlMapArray = runtime.isV9
                    ? new Uint32Array(textButtons.length)
                    : new Uint16Array(textButtons.length);
                for (let i = 0; i < textButtons.length; i++) {
                    const button = textButtons[i];

                    let ctrl = button.width;
                    if (ctrl < 1) {
                        ctrl = 1;
                    }
                    if (ctrl > 7) {
                        ctrl = 7;
                    }

                    if (button.ctrlHidden) {
                        ctrl |= MATRIX_BUTTON_CTRL.HIDDEN;
                    }

                    if (button.ctrlNoRepeat) {
                        ctrl |= MATRIX_BUTTON_CTRL.NO_REPEAT;
                    }

                    if (button.ctrlDisabled) {
                        ctrl |= MATRIX_BUTTON_CTRL.DISABLED;
                    }

                    if (button.ctrlCheckable) {
                        ctrl |= MATRIX_BUTTON_CTRL.CHECKABLE;
                    }

                    if (button.ctrlChecked) {
                        ctrl |= MATRIX_BUTTON_CTRL.CHECKED;
                    }

                    if (button.ctrlClickTrig) {
                        ctrl |= MATRIX_BUTTON_CTRL.CLICK_TRIG;
                    }

                    if (button.ctrlPopover) {
                        ctrl |= MATRIX_BUTTON_CTRL.POPOVER;
                    }

                    if (!runtime.isV9) {
                        if (button.ctrlRecolor) {
                            ctrl |= MATRIX_BUTTON_CTRL.RECOLOR;
                        }
                    }

                    if (button.ctrlCustom1) {
                        ctrl |= MATRIX_BUTTON_CTRL.CUSTOM_1;
                    }

                    if (button.ctrlCustom2) {
                        ctrl |= MATRIX_BUTTON_CTRL.CUSTOM_2;
                    }

                    ctrlMapArray[i] = ctrl;
                }

                ctrlMapBuffer = runtime.wasm._malloc(
                    ctrlMapArray.length * ctrlMapArray.BYTES_PER_ELEMENT
                );

                if (runtime.isV9) {
                    runtime.wasm.HEAPU32.set(ctrlMapArray, ctrlMapBuffer >> 2);
                } else {
                    runtime.wasm.HEAPU16.set(ctrlMapArray, ctrlMapBuffer >> 1);
                }
            } else {
                ctrlMapBuffer = 0;
            }

            ctrlMapArg = ctrlMapBuffer;
        }

        if (code.isV9) {
            code.callObjectFunction("lv_buttonmatrix_set_map", mapArg);
            if (ctrlMapArg) {
                code.callObjectFunction(
                    "lv_buttonmatrix_set_ctrl_map",
                    ctrlMapArg
                );
            }
            if (this.oneCheck) {
                code.callObjectFunction(
                    "lv_buttonmatrix_set_one_checked",
                    code.constant("true")
                );
            }
        } else {
            code.callObjectFunction("lv_btnmatrix_set_map", mapArg);
            if (ctrlMapArg) {
                code.callObjectFunction(
                    "lv_btnmatrix_set_ctrl_map",
                    ctrlMapArg
                );
            }
            if (this.oneCheck) {
                code.callObjectFunction(
                    "lv_btnmatrix_set_one_checked",
                    code.constant("true")
                );
            }
        }

        if (code.pageRuntime) {
            const runtime = code.pageRuntime!;

            if (this._mapBuffer && this._buffersWasm == runtime.wasm) {
                this._mapArray
                    .slice(0, -1)
                    .forEach(value => runtime.wasm._free(value));
                runtime.wasm._free(this._mapBuffer);
                if (this._ctrlMapBuffer) {
                    runtime.wasm._free(this._ctrlMapBuffer);
                }
            }

            this._mapBuffer = mapArg as number;
            this._mapArray = mapArray!;
            this._ctrlMapBuffer = ctrlMapArg as number;
            this._buffersWasm = runtime.wasm;
        }
    }
}