import Vue from "vue";
import Vuex from "vuex";
import config from "../assets/scripts/config";
import WxRenderer from "../assets/scripts/renderers/wx-renderer";
import marked from "marked";
import CodeMirror from "codemirror/lib/codemirror";
import DEFAULT_CONTENT from "@/assets/example/markdown.md";
import DEFAULT_CSS_CONTENT from "@/assets/example/theme-css.txt";
import { setColor, formatDoc, formatCss } from "../assets/scripts/util";

Vue.use(Vuex);

const state = {
  wxRenderer: null,
  output: "",
  html: "",
  editor: null,
  cssEditor: null,
  currentFont: "",
  currentSize: "",
  currentColor: "",
  citeStatus: 0,
  nightMode: false,
  codeTheme: "github",
  rightClickMenuVisible: false,
};
const mutations = {
  setEditorValue(state, data) {
    state.editor.setValue(data);
  },
  setCssEditorValue(state, data) {
    state.cssEditor.setValue(data);
  },
  setWxRendererOptions(state, data) {
    state.wxRenderer.setOptions(data);
  },
  setCiteStatus(state, data) {
    state.citeStatus = data;
    localStorage.setItem("citeStatus", data);
  },
  setCurrentFont(state, data) {
    state.currentFont = data;
    localStorage.setItem("fonts", data);
  },
  setCurrentSize(state, data) {
    state.currentSize = data;
    localStorage.setItem("size", data);
  },
  setCurrentColor(state, data) {
    state.currentColor = data;
    localStorage.setItem("color", data);
  },
  setCurrentCodeTheme(state, data) {
    state.codeTheme = data;
    localStorage.setItem("codeTheme", data);
  },
  setRightClickMenuVisible(state, data) {
    state.rightClickMenuVisible = data;
  },
  themeChanged(state) {
    state.nightMode = !state.nightMode;
    localStorage.setItem("nightMode", state.nightMode);
  },
  initEditorState(state) {
    state.currentFont =
      localStorage.getItem("fonts") || config.builtinFonts[0].value;
    state.currentColor =
      localStorage.getItem("color") || config.colorOption[0].value;
    state.currentSize =
      localStorage.getItem("size") || config.sizeOption[2].value;
    state.codeTheme =
      localStorage.getItem("codeTheme") || config.codeThemeOption[0].value;
    state.citeStatus = localStorage.getItem("citeStatus") === "true";
    state.nightMode = localStorage.getItem("nightMode") === "true";
    state.wxRenderer = new WxRenderer({
      theme: setColor(state.currentColor),
      fonts: state.currentFont,
      size: state.currentSize,
      status: state.citeStatus,
    });
  },
  initEditorEntity(state) {
    const editorDom = document.getElementById("editor");

    if (!editorDom.value) {
      editorDom.value =
        localStorage.getItem("__editor_content") || formatDoc(DEFAULT_CONTENT);
    }
    state.editor = CodeMirror.fromTextArea(editorDom, {
      mode: "text/x-markdown",
      theme: "xq-light",
      lineNumbers: false,
      lineWrapping: true,
      styleActiveLine: true,
      autoCloseBrackets: true,
      extraKeys: {
        "Ctrl-F": function autoFormat(editor) {
          const doc = formatDoc(editor.getValue(0));
          localStorage.setItem("__editor_content", doc);
          editor.setValue(doc);
        },
        "Ctrl-S": function save(editor) {},
        "Ctrl-B": function bold(editor) {
          const selected = editor.getSelection();
          editor.replaceSelection(`**${selected}**`);
        },
        "Ctrl-D": function del(editor) {
          const selected = editor.getSelection();
          editor.replaceSelection(`~~${selected}~~`);
        },
        "Ctrl-I": function italic(editor) {
          const selected = editor.getSelection();
          editor.replaceSelection(`*${selected}*`);
        }
      },
    });
  },
  initCssEditorEntity(state) {
    const cssEditorDom = document.getElementById("cssEditor");

    if (!cssEditorDom.value) {
      cssEditorDom.value =
        localStorage.getItem("__css_content") || DEFAULT_CSS_CONTENT;
    }
    state.cssEditor = CodeMirror.fromTextArea(cssEditorDom, {
      mode: "css",
      theme: "style-mirror",
      lineNumbers: false,
      lineWrapping: true,
      matchBrackets: true,
      autofocus: true,
      extraKeys: {
        "Ctrl-F": function autoFormat(editor) {
          const doc = formatCss(editor.getValue(0));
          localStorage.setItem("__css_content", doc);
          editor.setValue(doc);
        },
        "Ctrl-S": function save(editor) {},
      },
    });
  },
  editorRefresh(state) {
    let output = marked(state.editor.getValue(0), {
      renderer: state.wxRenderer.getRenderer(state.citeStatus),
    });

    // 去除第一行的 margin-top
    output = output.replace(/(style=".*?)"/, '$1;margin-top: 0"');
    if (state.citeStatus) {
      // 引用脚注
      output += state.wxRenderer.buildFootnotes();
      // 附加的一些 style
      output += state.wxRenderer.buildAddition();
    }
    state.output = output;
  },
  clearEditorToDefault(state) {
    const doc = formatDoc(DEFAULT_CONTENT);

    state.editor.setValue(doc);
    state.cssEditor.setValue(DEFAULT_CSS_CONTENT);
  },
};

export default new Vuex.Store({
  state,
  mutations,
  actions: {},
});