// Make modal window
function makeModal({
  title = "Message",
  text = "No text",
  type = "info",
  parent = null,
  stylePos = "fixed",
} = {}) {
  const overlay = document.createElement("div");
  Object.assign(overlay.style, {
    display: "none",
    position: stylePos,
    background: "rgba(0 0 0 / 0.8)",
    opacity: 0,
    top: "0",
    left: "0",
    right: "0",
    bottom: "0",
    zIndex: "500",
    transition: "all .8s",
    cursor: "pointer",
  });

  const boxModal = document.createElement("div");
  Object.assign(boxModal.style, {
    transition: "all 0.5s",
    opacity: 0,
    display: "none",
    position: stylePos,
    top: "50%",
    left: "50%",
    transform: "translate(-50%,-50%)",
    background: "#525252",
    minWidth: "300px",
    fontFamily: "sans-serif",
    zIndex: "501",
    border: "1px solid rgb(255 255 255 / 45%)",
  });

  boxModal.className = "alekpet_modal_window";

  const boxModalBody = document.createElement("div");
  Object.assign(boxModalBody.style, {
    display: "flex",
    flexDirection: "column",
    textAlign: "center",
  });

  boxModalBody.className = "alekpet_modal_body";

  const boxModalHtml = `
  <div class="alekpet_modal_header" style="display: flex;  align-items: center;  background: #222;  width: 100%;justify-content: center;">
  <div class="alekpet_modal_title" style="flex-basis: 85%; text-align: center;padding: 5px;">${title}</div>
  <div class="alekpet_modal_close">✕</div>
  </div>
  <div class="alekpet_modal_description" style="padding: 8px;">${text}</div>`;
  boxModalBody.innerHTML = boxModalHtml;

  const alekpet_modal_header = boxModalBody.querySelector(
    ".alekpet_modal_header"
  );
  Object.assign(alekpet_modal_header.style, {
    display: "flex",
    alignItems: "center",
  });

  const close = boxModalBody.querySelector(".alekpet_modal_close");
  Object.assign(close.style, {
    cursor: "pointer",
  });

  let parentElement = document.body;
  if (parent && parent.nodeType === 1) {
    parentElement = parent;
  }

  boxModal.append(boxModalBody);
  parentElement.append(overlay, boxModal);

  const removeEvent = new Event("removeElements");
  const remove = () => {
    animateTransitionProps(boxModal, { opacity: 0 }).then(() =>
      animateTransitionProps(overlay, { opacity: 0 }).then(() => {
        parentElement.removeChild(boxModal);
        parentElement.removeChild(overlay);
      })
    );
  };

  boxModal.addEventListener("removeElements", remove);
  overlay.addEventListener("removeElements", remove);

  animateTransitionProps(overlay)
    .then(() => {
      overlay.addEventListener("click", () => {
        overlay.dispatchEvent(removeEvent);
      });
      animateTransitionProps(boxModal);
    })
    .then(() =>
      boxModal
        .querySelector(".alekpet_modal_close")
        .addEventListener("click", () => boxModal.dispatchEvent(removeEvent))
    );
}

function findWidget(node, value, attr = "name", func = "find") {
  return node?.widgets ? node.widgets[func]((w) => w[attr] === value) : null;
}

function animateTransitionProps(
  el,
  props = { opacity: 1 },
  preStyles = { display: "block" }
) {
  Object.assign(el.style, preStyles);
  return new Promise((res) => {
    setTimeout(() => {
      Object.assign(el.style, props);

      const transstart = () => (el.isAnimating = true);
      const transchancel = () => (el.isAnimating = false);
      el.addEventListener("transitionstart", transstart);
      el.addEventListener("transitioncancel", transchancel);

      el.addEventListener("transitionend", function transend() {
        el.isAnimating = false;
        el.removeEventListener("transitionend", transend);
        el.removeEventListener("transitionend", transchancel);
        el.removeEventListener("transitionend", transstart);
        res(el);
      });
    }, 100);
  });
}

function animateClick(target, opacityVal = 0.9) {
  if (target?.isAnimating) return;

  const hide = +target.style.opacity === 0;
  return animateTransitionProps(target, {
    opacity: hide ? opacityVal : 0,
  }).then(() => showHide({ elements: [target], hide: !hide }));
}

function showHide({ elements = [], hide = null, displayProp = "block" } = {}) {
  Array.from(elements).forEach((el) => {
    if (hide !== null) {
      el.style.display = !hide ? displayProp : "none";
    } else {
      el.style.display =
        !el.style.display || el.style.display === "none" ? displayProp : "none";
    }
  });
}

function isEmptyObject(obj) {
  if (!obj) return true;
  return Object.keys(obj).length === 0 && obj.constructor === Object;
}

function makeElement(tag, attrs = {}) {
  if (!tag) tag = "div";
  const element = document.createElement(tag);
  Object.keys(attrs).forEach((key) => {
    const currValue = attrs[key];
    if (key === "class") {
      if (Array.isArray(currValue)) {
        element.classList.add(...currValue);
      } else if (currValue instanceof String && typeof currValue === "string") {
        element.className = currValue;
      }
    } else if (key === "dataset") {
      try {
        if (Array.isArray(currValue)) {
          currValue.forEach((datasetArr) => {
            const [prop, propval] = Object.entries(datasetArr)[0];
            element.dataset[prop] = propval;
          });
        } else {
          const [prop, propval] = Object.entries(currValue)[0];
          element.dataset[prop] = propval;
        }
      } catch (err) {
        console.log(err);
      }
    } else if (["for"].includes(key)) {
      element.setAttribute(key, currValue);
    } else if (key === "children") {
      element.append(...(currValue instanceof Array ? currValue : [currValue]));
    } else if (key === "parent") {
      currValue.append(element);
    } else {
      element[key] = currValue;
    }
  });
  return element;
}

function isValidStyle(opt, strColor) {
  let op = new Option().style;
  if (!op.hasOwnProperty(opt))
    return { result: false, color: "", color_hex: "" };

  op[opt] = strColor;

  return {
    result: op[opt] !== "",
    color_rgb: op[opt],
    color_hex: rgbToHex(op[opt]),
  };
}

function rgbToHex(rgb) {
  const regEx = new RegExp(/\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)/);
  if (regEx.test(rgb)) {
    let [, r, g, b] = regEx.exec(rgb);
    r = parseInt(r).toString(16);
    g = parseInt(g).toString(16);
    b = parseInt(b).toString(16);

    r = r.length === 1 ? r + "0" : r;
    g = g.length === 1 ? g + "0" : g;
    b = b.length === 1 ? b + "0" : b;

    return `#${r}${g}${b}`;
  }
}

async function getDataJSON(url) {
  try {
    const response = await fetch(url);
    const jsonData = await response.json();
    return jsonData;
  } catch (err) {
    return new Error(err);
  }
}

function deepMerge(target, source) {
  if (source?.nodeType) return;
  for (let key in source) {
    if (source[key] instanceof Object && key in target) {
      Object.assign(source[key], deepMerge(target[key], source[key]));
    }
  }

  Object.assign(target || {}, source);
  return target;
}

const THEME_MODAL_WINDOW_BASE = {
  stylesTitle: {
    background: "#8f210f",
    padding: "5px",
    borderRadius: "6px",
    marginBottom: "5px",
    alignSelf: "stretch",
  },
  stylesBox: {
    background: "auto",
    color: "auto",
    border: 0,
    boxShadow: "none",
    padding: 0,
    fontFamily: "sans-serif",
  },
  stylesWrapper: {
    display: "flex",
    background: "#3b2222",
    justifyContent: "center",
    flexDirection: "column",
    alignItems: "stretch",
    textAlign: "center",
    borderRadius: "6px",
    boxShadow: "3px 3px 6px #141414",
    border: "1px solid #f91b1b",
    color: "white",
    padding: "6px",
    fontFamily: "sans-serif",
    lineHeight: 1.5,
    maxWidth: "300px",
  },
  stylesClose: { background: "#3b2222" },
};

const THEMES_MODAL_WINDOW = {
  error: { ...THEME_MODAL_WINDOW_BASE },
  warning: {
    stylesTitle: {
      ...THEME_MODAL_WINDOW_BASE.stylesTitle,
      background: "#e99818",
    },
    stylesBox: { ...THEME_MODAL_WINDOW_BASE.stylesBox },
    stylesWrapper: {
      ...THEME_MODAL_WINDOW_BASE.stylesWrapper,
      background: "#594e32",
      boxShadow: "3px 3px 6px #141414",
      border: "1px solid #e99818",
    },
    stylesClose: {
      ...THEME_MODAL_WINDOW_BASE.stylesClose,
      background: "#594e32",
    },
  },
  normal: {
    stylesTitle: {
      ...THEME_MODAL_WINDOW_BASE.stylesTitle,
      background: "#108f0f",
    },
    stylesBox: { ...THEME_MODAL_WINDOW_BASE.stylesBox },
    stylesWrapper: {
      ...THEME_MODAL_WINDOW_BASE.stylesWrapper,
      background: "#223b2a",
      boxShadow: "3px 3px 6px #141414",
      border: "1px solid #108f0f",
    },
    stylesClose: {
      ...THEME_MODAL_WINDOW_BASE.stylesClose,
      background: "#223b2a",
    },
  },
};

const defaultOptions = {
  auto: {
    autohide: false,
    autoshow: false,
    autoremove: false,
    propStyles: { opacity: 0 },
    propPreStyles: {},
    timewait: 2000,
  },
  parent: null,
};

function createWindowModal({
  textTitle = "Message",
  textBody = "Hello world!",
  textFooter = null,
  classesWrapper = [],
  stylesWrapper = {},
  classesBox = [],
  stylesBox = {},
  classesTitle = [],
  stylesTitle = {},
  classesBody = [],
  stylesBody = {},
  classesClose = [],
  stylesClose = {},
  classesFooter = [],
  stylesFooter = {},
  options = defaultOptions,
} = {}) {
  // Check all options exist
  options = deepMerge({ ...defaultOptions }, options);

  const {
    parent,
    auto: {
      autohide,
      autoshow,
      autoremove,
      timewait,
      propStyles,
      propPreStyles,
    },
  } = options;

  // Function past text(html)
  function addText(text, parent) {
    if (!parent) return;

    switch (typeof text) {
      case "string":
        if (/^\<*.\/?\>$/.test(text)) {
          parent.innerHTML(text);
        } else {
          parent.textContent = text;
        }
        break;
      case "object":
      default:
        if (Array.isArray(text)) {
          text.forEach((element) => parent.append(element));
        } else if (text.nodeType === 1 || text.nodeType === 3)
          parent.append(text);
    }
  }

  // Wrapper
  const wrapper_settings = makeElement("div", {
    class: ["alekpet__wrapper__window", ...classesWrapper],
  });

  Object.assign(wrapper_settings.style, {
    display: "none",
    opacity: 0,
    minWidth: "220px",
    position: "absolute",
    left: "50%",
    top: "50%",
    transform: "translate(-50%, -50%)",
    opacity: 0,
    transition: "all .8s",
    ...stylesWrapper,
  });

  // Box
  const box__settings = makeElement("div", {
    class: ["alekpet__window__box", ...classesBox],
  });
  Object.assign(box__settings.style, {
    display: "flex",
    flexDirection: "column",
    background: "#0e0e0e",
    padding: "10px",
    justifyContent: "center",
    alignItems: "center",
    gap: "10px",
    textAlign: "center",
    borderRadius: "6px",
    color: "white",
    border: "2px solid silver",
    fontFamily: "monospace",
    boxShadow: "2px 2px 4px silver",
    ...stylesBox,
  });

  // Title
  const box_settings_title = makeElement("div", {
    class: ["alekpet__window__title", , ...classesTitle],
  });
  Object.assign(box_settings_title.style, {
    ...stylesTitle,
  });
  // Add text (html) to title
  addText(textTitle, box_settings_title);

  // Body
  const box_settings_body = makeElement("div", {
    class: ["alekpet__window__body", ...classesBody],
  });
  Object.assign(box_settings_body.style, {
    display: "flex",
    flexDirection: "column",
    alignItems: "flex-end",
    gap: "5px",
    textWrap: "wrap",
    ...stylesBody,
  });
  // Add text (html) to body
  addText(textBody, box_settings_body);

  // Close button
  const close__box__button = makeElement("div", {
    class: ["close__box__button", ...classesClose],
    textContent: "✖",
  });
  Object.assign(close__box__button.style, {
    position: "absolute",
    top: "-10px",
    right: "-10px",
    background: "silver",
    borderRadius: "50%",
    width: "20px",
    height: "20px",
    cursor: "pointer",
    display: "flex",
    justifyContent: "center",
    alignItems: "center",
    fontSize: "0.8rem",
    ...stylesClose,
  });

  close__box__button.addEventListener("click", () =>
    animateTransitionProps(wrapper_settings, {
      opacity: 0,
    }).then(() => {
      showHide({ elements: [wrapper_settings] });
    })
  );

  close__box__button.onmouseenter = () => {
    close__box__button.style.opacity = 0.8;
  };

  close__box__button.onmouseleave = () => {
    close__box__button.style.opacity = 1;
  };

  box__settings.append(box_settings_title, box_settings_body);

  // Footer
  if (textFooter) {
    const box_settings_footer = makeElement("div", {
      class: [...classesFooter],
    });
    Object.assign(box_settings_footer.style, {
      ...stylesFooter,
    });

    // Add text (html) to body
    addText(textFooter, box_settings_footer);

    box__settings.append(box_settings_footer);
  }

  wrapper_settings.append(close__box__button, box__settings);

  if (parent && parent.nodeType === 1) {
    parent.append(wrapper_settings);

    if (autoshow) {
      animateClick(wrapper_settings).then(
        () =>
          autohide &&
          setTimeout(
            () =>
              animateTransitionProps(
                wrapper_settings,
                { ...propStyles },
                { ...propPreStyles }
              ).then(() => autoremove && parent.removeChild(wrapper_settings)),
            timewait
          )
      );
    }
  }

  return wrapper_settings;
}

export {
  makeModal,
  createWindowModal,
  animateTransitionProps,
  animateClick,
  showHide,
  makeElement,
  getDataJSON,
  isEmptyObject,
  isValidStyle,
  rgbToHex,
  findWidget,
  THEMES_MODAL_WINDOW,
};