import {getAllModels} from "../../layout/getAll";
import {isWindow} from "../../util/functions";
import {hasClosestBlock, hasClosestByClassName, hasClosestByMatchTag} from "../../protyle/util/hasClosest";
import {getColIndex} from "../../protyle/util/table";

const getRightBlock = (element: HTMLElement, x: number, y: number) => {
    let index = 1;
    let nodeElement = element;
    while (nodeElement && (nodeElement.classList.contains("list") || nodeElement.classList.contains("li"))) {
        nodeElement = document.elementFromPoint(x + 73 * index, y) as HTMLElement;
        nodeElement = hasClosestBlock(nodeElement) as HTMLElement;
        index++;
    }
    return nodeElement;
};

export const windowMouseMove = (event: MouseEvent & { target: HTMLElement }) => {
    // https://github.com/siyuan-note/siyuan/pull/8793
    const coordinates = window.siyuan.coordinates ?? (window.siyuan.coordinates = {
        pageX: 0,
        pageY: 0,
        clientX: 0,
        clientY: 0,
        screenX: 0,
        screenY: 0,
    });
    coordinates.pageX = event.pageX;
    coordinates.pageY = event.pageY;
    coordinates.clientX = event.clientX;
    coordinates.clientY = event.clientY;
    coordinates.screenX = event.screenX;
    coordinates.screenY = event.screenY;

    if (window.siyuan.hideBreadcrumb) {
        document.querySelectorAll(".protyle-breadcrumb__bar--hide").forEach(item => {
            item.classList.remove("protyle-breadcrumb__bar--hide");
        });
        window.siyuan.hideBreadcrumb = false;
        getAllModels().editor.forEach(item => {
            item.editor.protyle.breadcrumb.render(item.editor.protyle, true);
        });
    }
    if (event.buttons === 0 &&  // 鼠标按键被按下时不触发
        window.siyuan.layout.bottomDock &&
        !isWindow() && !hasClosestByClassName(event.target, "b3-dialog") && !hasClosestByClassName(event.target, "b3-menu")) {
        if (event.clientX < 43) {
            if (!window.siyuan.layout.leftDock.pin && window.siyuan.layout.leftDock.layout.element.clientWidth > 0 &&
                // 隐藏停靠栏会导致点击两侧内容触发浮动面板弹出，因此需减小鼠标范围
                (window.siyuan.layout.leftDock.element.clientWidth > 0 || (window.siyuan.layout.leftDock.element.clientWidth === 0 && event.clientX < 8))) {
                if (event.clientY > document.getElementById("toolbar").clientHeight &&
                    event.clientY < window.innerHeight - document.getElementById("status").clientHeight - document.getElementById("dockBottom").clientHeight) {
                    if (!hasClosestByClassName(event.target, "b3-menu") &&
                        !hasClosestByClassName(event.target, "layout--float")) {
                        window.siyuan.layout.leftDock.showDock();
                    }
                } else {
                    window.siyuan.layout.leftDock.hideDock();
                }
            }
        } else if (event.clientX > window.innerWidth - 41) {
            if (!window.siyuan.layout.rightDock.pin && window.siyuan.layout.rightDock.layout.element.clientWidth > 0 &&
                (window.siyuan.layout.rightDock.element.clientWidth > 0 || (window.siyuan.layout.rightDock.element.clientWidth === 0 && event.clientX > window.innerWidth - 8))) {
                if (event.clientY > document.getElementById("toolbar").clientHeight &&
                    event.clientY < window.innerHeight - document.getElementById("status").clientHeight - document.getElementById("dockBottom").clientHeight) {
                    if (!hasClosestByClassName(event.target, "layout--float")) {
                        window.siyuan.layout.rightDock.showDock();
                    }
                } else {
                    window.siyuan.layout.rightDock.hideDock();
                }
            }
        }

        if (event.clientY > window.innerHeight - 73) {
            window.siyuan.layout.bottomDock.showDock();
        }
    }
    const eventPath0 = event.composedPath()[0] as HTMLElement;
    if (eventPath0 && eventPath0.nodeType !== 3 && eventPath0.classList.contains("protyle-wysiwyg") && eventPath0.style.paddingLeft) {
        // 光标在编辑器右边也需要进行显示
        const mouseElement = document.elementFromPoint(eventPath0.getBoundingClientRect().left + parseInt(eventPath0.style.paddingLeft) + 13, event.clientY);
        const blockElement = hasClosestBlock(mouseElement);
        if (blockElement) {
            const targetBlockElement = getRightBlock(blockElement, blockElement.getBoundingClientRect().left + 1, event.clientY);
            if (!targetBlockElement) {
                return;
            }
            const allModels = getAllModels();
            let findNode = false;
            allModels.editor.find(item => {
                if (item.editor.protyle.wysiwyg.element.isSameNode(eventPath0)) {
                    item.editor.protyle.gutter.render(item.editor.protyle, targetBlockElement, item.editor.protyle.wysiwyg.element);
                    findNode = true;
                    return true;
                }
            });
            if (!findNode) {
                window.siyuan.blockPanels.find(item => {
                    item.editors.find(eItem => {
                        if (eItem.protyle.wysiwyg.element.contains(eventPath0)) {
                            eItem.protyle.gutter.render(eItem.protyle, targetBlockElement, eItem.protyle.wysiwyg.element);
                            findNode = true;
                            return true;
                        }
                    });
                    if (findNode) {
                        return true;
                    }
                });
            }
            if (!findNode) {
                allModels.backlink.find(item => {
                    item.editors.find(eItem => {
                        if (eItem.protyle.wysiwyg.element.isSameNode(eventPath0)) {
                            eItem.protyle.gutter.render(eItem.protyle, targetBlockElement, eItem.protyle.wysiwyg.element);
                            findNode = true;
                            return true;
                        }
                    });
                    if (findNode) {
                        return true;
                    }
                });
            }
        }
        return;
    }
    if (eventPath0 && eventPath0.nodeType !== 3 && (eventPath0.classList.contains("li") || eventPath0.classList.contains("list"))) {
        // 光标在列表下部应显示右侧的元素，而不是列表本身
        const targetBlockElement = getRightBlock(eventPath0, eventPath0.getBoundingClientRect().left + 1, event.clientY);
        if (!targetBlockElement) {
            return;
        }
        const allModels = getAllModels();
        let findNode = false;
        allModels.editor.find(item => {
            if (item.editor.protyle.wysiwyg.element.contains(eventPath0)) {
                item.editor.protyle.gutter.render(item.editor.protyle, targetBlockElement, item.editor.protyle.wysiwyg.element);
                findNode = true;
                return true;
            }
        });
        if (!findNode) {
            window.siyuan.blockPanels.find(item => {
                item.editors.find(eItem => {
                    if (eItem.protyle.wysiwyg.element.contains(eventPath0)) {
                        eItem.protyle.gutter.render(eItem.protyle, targetBlockElement, eItem.protyle.wysiwyg.element);
                        findNode = true;
                        return true;
                    }
                });
                if (findNode) {
                    return true;
                }
            });
        }
        if (!findNode) {
            allModels.backlink.find(item => {
                item.editors.find(eItem => {
                    if (eItem.protyle.wysiwyg.element.contains(eventPath0)) {
                        eItem.protyle.gutter.render(eItem.protyle, targetBlockElement, eItem.protyle.wysiwyg.element);
                        findNode = true;
                        return true;
                    }
                });
                if (findNode) {
                    return true;
                }
            });
        }
        return;
    }

    const target = event.target as Element;
    const blockElement = hasClosestByClassName(target, "table");
    if (blockElement && blockElement.style.cursor !== "col-resize" && !hasClosestByClassName(blockElement, "protyle-wysiwyg__embed")) {
        const cellElement = (hasClosestByMatchTag(target, "TH") || hasClosestByMatchTag(target, "TD")) as HTMLTableCellElement;
        if (cellElement) {
            const tableElement = blockElement.querySelector("table");
            const tableHeight = blockElement.querySelector("table").clientHeight;
            const resizeElement = blockElement.querySelector(".table__resize");
            if (blockElement.style.textAlign === "center" || blockElement.style.textAlign === "right") {
                resizeElement.parentElement.style.left = tableElement.offsetLeft + "px";
            } else {
                resizeElement.parentElement.style.left = "";
            }
            const rect = cellElement.getBoundingClientRect();
            if (rect.right - event.clientX < 3 && rect.right - event.clientX > 0) {
                resizeElement.setAttribute("data-col-index", (getColIndex(cellElement) + cellElement.colSpan - 1).toString());
                resizeElement.setAttribute("style", `height:${tableHeight}px;left: ${Math.round(cellElement.offsetWidth + cellElement.offsetLeft - blockElement.firstElementChild.scrollLeft - 3)}px;display:block`);
            } else if (event.clientX - rect.left < 3 && event.clientX - rect.left > 0 && cellElement.previousElementSibling) {
                resizeElement.setAttribute("data-col-index", (getColIndex(cellElement) - 1).toString());
                resizeElement.setAttribute("style", `height:${tableHeight}px;left: ${Math.round(cellElement.offsetLeft - blockElement.firstElementChild.scrollLeft - 3)}px;display:block`);
            }
        }
    }
};