import React, { useEffect, useState } from "react"
import { observer } from "mobx-react-lite"
import { ViewStyle } from "react-native"
import { Screen, Text } from "../../components"
// import { useNavigation } from "@react-navigation/native"
// import { useStores } from "../../models"
import { color } from "../../theme"

import { Graph } from "../../components"
import { Tweaks } from "../../components"

import genRandomTree from "../../data/randomdata"

import AsyncStorage from "@react-native-async-storage/async-storage"

import axios from "axios";

import rando from "../../data/rando.json"

const ROOT: ViewStyle = {
  backgroundColor: color.palette.black,
  flex: 1,
}

export const GraphScreen = observer(function GraphScreen() {
  // Pull in one of our MST stores
  // const { someStore, anotherStore } = useStores()

  // Pull in navigation via hook
  // const navigation = useNavigation()


  const [physics, setPhysics] = useState({})
  const [graphData, setGraphData] = useState();
  const [nodeIds, setNodeIds] = useState([]);
  //  { "nodes": [{ "id": 1 }, { "id": 2 }], "links": [{ "target": 1, "source": 2 }] });
  const physicsInit = {
    charge: -30,
    collision: false,
    linkStrength: 1,
    linkIts: 1,
    collapse: false,
    threedim: false,
    particles: 2,
    linkOpacity: 1,
    linkWidth: 1,
    particleWidth: 1,
    nodeRel: 1,
    labels: true,
    labelScale: 1,
  }

  const getData = async () => {
    try {
      const value: string = await AsyncStorage.getItem("@physics");
      if (value !== null) {
        const valueJson = JSON.parse(value);
        if (Object.keys(valueJson).length === Object.keys(physicsInit).length) {
          return valueJson;
        } else { return physicsInit };
      } else {
        return physicsInit
      }
    } catch (e) {
      console.log(e)
    }
  }
  const storeData = async (value) => {
    try {
      const jsonValue = JSON.stringify(value)
      await AsyncStorage.mergeItem("@physics", jsonValue)
      console.log("Writing " + jsonValue)
    } catch (e) {
      console.log(e)
    }
  }

  // hook to save the current configuration of the physics tweaks
  // after it is updated
  useEffect(() => {
    if (timer) {
      clearTimeout(timer)
    }
    // set timer so the thing doesn't run every single slider tick
    const timer = setTimeout(() => {
      storeData(physics)
      const test = getData()
      console.log(test)
    }, 1000)
    return () => clearTimeout(timer)
  }, [physics]);

  //"ComponentOnMount"
  // Get previous settings and the data from the org-roam-server
  const sanitizeGraph = (data, nodeIds: string[]) => {
    const cleanLinks = [];
    data.links.forEach((link, i) => {
        for (i=0; i<=nodeIds.length; i++){
        if (link.target === nodeIds[i]) {
          cleanLinks.push(link);
          break;
        };
      };
    });
      console.log(cleanLinks);
      data.links = cleanLinks;
      return data;
    };

    const getNodesById = (data) => {
        let temp = [];
        data.nodes.forEach(node => temp.push(node.id));
        setNodeIds(temp);
        return temp;
    };

    useEffect(() => {
      getData().then((data) => setPhysics(data));
      axios.get("http://localhost:35901/graph")
        .then((dataa) => {
          let nods = getNodesById(dataa.data);
          setNodeIds(nods);
          console.log(nodeIds);
          let cleanData = sanitizeGraph(dataa.data, nods);
          console.log(cleanData)
          setGraphData(cleanData);
        })
        .catch((e) => {
          console.log(e);
          console.log("Couldn't get data.");
          //setGraphData(rando);
        });
    }, [])
    if (!graphData) { return null }
    else {
      return (
        <Screen style={ROOT} preset="scroll">
          <Tweaks physics={physics} setPhysics={setPhysics} />
          <Graph physics={physics} gData={graphData} nodeIds={nodeIds}/>
        </Screen>
      )
    }
  })