import { useState , useEffect } from 'react';
import {LeumasBaseStyle} from "../../styles/baseStyles"
import useAuthUser from 'react-auth-kit/hooks/useAuthUser';
import {getItemsByOwner} from "../UniversalCrud/UniversalCrudHelpers"
import SaveButton from "../UniversalCrud/SaveButton"
import EditItem from "../UniversalCrud/EditItem"
import DeleteItem from "../UniversalCrud/DeleteItem"
import axios from "axios"
import {AtomSpinner} from "react-epic-spinners"
import { runBlocks } from './Helpers/runBlocks';
import CustomDropdown from '../UniversalCrud/CustomDropdown';
import {useParams} from 'react-router-dom'


import { useTheme } from "../../Theme/ThemeContext";

const lightThemeColors = {
  background: '#FAFAFA',
  primary: '#0077C0',
  secondary: '#C7EEFF',
  text: '#1D242B',
};

const darkThemeColors = {
  background: '#1D242B',
  primary: '#0077C0',
  secondary: '#2A3B4D',
  text: '#FAFAFA',
  cardText: '#E0E0E0',
};

const useColors = (theme) => {
  return theme === 'dark' ? darkThemeColors : lightThemeColors;
};

const DEFAULT_ENDPOINT = `${import.meta.env.VITE_REACT_APP_LEUMAS_API_ENDPOINT}/wildcards/bulk-request`;
export const EndpointBuilder = () => {
    const auth = useAuthUser()
    const { theme } = useTheme();
    const colors = useColors(theme);

    const [models , setModels] = useState([]);
    // Structuring data for your backend schema
    const [message, setMessage] = useState("");
    const [messageType , setMessageType] = useState("");
    const [isLoading, setIsLoading] = useState(false);
    const [results, setResults] = useState([]);
    const [selectedEndpoint, setSelectedEndpoint] = useState(null);
    const [endpointName, setEndpointName] = useState("");

    const {id} = useParams()

    const [bulkEndpoints, setBulkEndpoints] = useState({
        endpoints: [{
            method: 'GET',
            endpoint: '',
            body: '{}',
            headers: '{}',
            params: '{}',
        }]
    });
    console.log(models)

    const addBlock = () => {
        setBulkEndpoints(prev => ({
            ...prev,
            endpoints: [
                ...prev.endpoints,
                {
                    method: 'GET',
                    endpoint: '',
                    body: '{}',
                    headers: '{}',
                    params: '{}',
                }
            ]
        }));
    };
    
    const deleteBlock = (index) => {
        const newEndpoints = [...bulkEndpoints.endpoints];
        newEndpoints.splice(index, 1);
        setBulkEndpoints({
            ...bulkEndpoints,
            endpoints: newEndpoints
        });
    };
    
    const handleChange = (index, field, value) => {
        const newEndpoints = [...bulkEndpoints.endpoints];
        newEndpoints[index][field] = value;
        setBulkEndpoints({
            ...bulkEndpoints,
            endpoints: newEndpoints
        });
    };
    

    const handleRunBlocks = () => {
        setIsLoading(true);  // Start the loading spinner
        runBlocks(DEFAULT_ENDPOINT, bulkEndpoints.endpoints, 
            (data) => {
                console.log(data);
                setResults(data);
                setIsLoading(false);  // Stop the loading spinner
            },
            (error) => {
                console.error(error);
                setIsLoading(false);  // Stop the loading spinner
            }
        );
    };

    
    
    const fetchEndpoints = () => {
        getItemsByOwner("Endpoint", auth?.id, "LeumasAPI", auth?.token)
        .then((data) => {
            if(!data || data.length === 0) {
               console.warn("No endpoints found for the user.");
            } else {
               setModels(data);
               console.log("Fetched endpoints:", data);
            }
         })
         .catch((error) => {
            console.error("Error fetching endpoints:", error.message);
         });
         
         
      };
    
      useEffect(() => {
        getItemsByOwner("Endpoint", auth?.id, "LeumasAPI", auth?.token)
          .then((data) => {
            if (!data || data.length === 0) {
              console.warn("No endpoints found for the user.");
            } else {
              setModels(data);
              console.log("Fetched endpoints:", data);
      
              if (id) {
                alert("Existing ID " + id);
                console.log(data);
      
                const matchedEndpoint = data.find(item => item._id === id);
                if (matchedEndpoint) {
                  setBulkEndpoints(matchedEndpoint);
                }
              }
            }
          })
          .catch((error) => {
            console.error("Error fetching endpoints:", error.message);
          });
      }, [auth?.id, id]);
      

         
     
     useEffect(() => {
        // When selectedEndpoint changes, update the state
        if (selectedEndpoint) {
            setBulkEndpoints(prev => ({
                ...prev,
                endpoints: selectedEndpoint.endpoints
            }));
        }
    }, [selectedEndpoint]);
    
    const handleEndpointSelectChange = (e) => {
        console.log(e)
        setModels(e.endpoints)
        setBulkEndpoints(e)
        
    }

    const handleSaveSuccess = () => {
        fetchEndpoints();  // Refetch the QR codes
        setMessageType("success");
        setMessage("Success in creating model, please refresh to view");
        setIsLoading(false);
      };
    

      const endpointData = {
  owner: auth?.id,
  ...bulkEndpoints,
};


      function getBorderColor(requestIndex) {
        const result = results.find(res => res.index === requestIndex);
        if (!result) return '';
        if (result.success) return ' border-4 border-green-500';
        if (!result.success) return ' border-4 border-red-500';
        return '';
    }
    

  const inputStyle = "border border-gray-300 rounded-lg px-3 py-2 w-full focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent transition bg-transparent";
  const transparent = "bg-blue-400 text-white"
  return (
<div className="flex sm:flex-row flex-col flex-grow z-10 w-full">
    <aside className='flex flex-col min-w-[150px]  p-4' style={{ backgroundColor: colors.background, color: colors.text }}>
      <div className='flex sm:flex-col items-center justify-center'>
         <button onClick={addBlock} className={`${LeumasBaseStyle} max-w-[150px] `} style={{ backgroundColor: colors.primary, color: colors.text }}>
      Add New
    </button>

    <button onClick={handleRunBlocks} className={`${LeumasBaseStyle} max-w-[150px]`} style={{ backgroundColor: colors.primary, color: colors.text }}>
      Run Endpoints
    </button>

    <SaveButton
      model={"Endpoint"}
      data={models}
      editMode={id ? true : false}
      isLoading={isLoading}
      setIsLoading={setIsLoading}
      setMessage={setMessage}
      setMessageType={setMessageType}
      onSuccess={handleSaveSuccess}
      styles={` mb-3 p-0 border`}
    />
      </div>
   

      <input
        type="text"
        id="endpointName"
        placeholder="Name"
        className={`w-full rounded-lg p-2`}
        value={endpointName}
        onChange={(e) => setEndpointName(e.target.value)}
        style={{ backgroundColor: colors.secondary, color: colors.text }}
      />


  </aside>


  <div className='flex flex-col w-full'>
  <CustomDropdown
      model="Endpoint"
      modelArray={models}
      endpoint="LeumasAPI"
      token={auth?.token}
      onSelectedChange={(e) => window.location.href = `/endpoints/bulk/${e._id}`}
    />

      <div className={`results w-full mx-auto border-2 rounded-lg shadow-lg overflow-auto max-h-[100px] min-h-[100px] overflow-y-scroll p-2`} style={{ backgroundColor: colors.secondary, borderColor: colors.primary, color: colors.text }}>
      {results.length <= 0 ? <p className='border h-full text-center flex items-center justify-center min-h-[80px] rounded-lg'>Sorry no results yet</p> : null}
    {results.map((result, index) => (
      <div key={index} className="mb-4 last:mb-0">
        <p className="font-mono" style={{ color: colors.primary }}>Block {result.index}: {result.message}</p>
        <pre className="whitespace-pre-wrap p-4 rounded" style={{ backgroundColor: colors.background, color: colors.cardText }}>
          {JSON.stringify(result.data || result.error, null, 2)}
        </pre>
        
      </div>
    ))}
  </div>



  <div className='grid sm:grid-cols-2 grid-cols-1 max-h-[800px] min-w-[400px] overflow-y-scroll w-full gap-2' style={{ backgroundColor: colors.background, color: colors.text }}>
    {isLoading ? (
      <div className="col-span-2 flex justify-center items-center h-60">
        <AtomSpinner />
      </div>
    ) : (
      bulkEndpoints.endpoints.map((request, index) => (
        <div key={index} className={`${LeumasBaseStyle} min-w-[250px] ${getBorderColor(index)} border`} style={{ backgroundColor: colors.secondary, color: colors.text }}>
          <p style={{ color: colors.text }}>Block {index}</p>
          <div className="flex space-x-2">
            <select
              value={request.method}
              onChange={(e) => handleChange(index, 'method', e.target.value)}
              className={`${inputStyle}`}
              style={{ backgroundColor: colors.secondary, color: colors.text }}
            >
              <option value="GET">GET</option>
              <option value="POST">POST</option>
              <option value="PUT">PUT</option>
              <option value="DELETE">DELETE</option>
            </select>
            <input
              type="text"
              value={request.endpoint}
              onChange={(e) => handleChange(index, 'endpoint', e.target.value)}
              className={`${inputStyle} flex-grow`}
              style={{ backgroundColor: colors.secondary, color: colors.text }}
              placeholder="Enter endpoint URL"
            />
          </div>
          <label style={{ color: colors.text }} className="block mt-2">Body</label>
          <textarea
            value={request.body}
            onChange={(e) => handleChange(index, 'body', e.target.value)}
            className={inputStyle}
            style={{ backgroundColor: colors.secondary, color: colors.text }}
            placeholder="Body (JSON)"
            rows="3"
          />
          <label style={{ color: colors.text }} className="block mt-2">Headers</label>
          <textarea
            value={request.headers}
            onChange={(e) => handleChange(index, 'headers', e.target.value)}
            className={inputStyle}
            style={{ backgroundColor: colors.secondary, color: colors.text }}
            placeholder="Headers (JSON)"
            rows="2"
          />
          <label style={{ color: colors.text }} className="block mt-2">Params</label>
          <textarea
            value={request.params}
            onChange={(e) => handleChange(index, 'params', e.target.value)}
            className={inputStyle}
            style={{ backgroundColor: colors.secondary, color: colors.text }}
            placeholder="Params (JSON)"
            rows="2"
          />
          <button onClick={() => deleteBlock(index)} className={LeumasBaseStyle} style={{ backgroundColor: colors.primary, color: colors.text }}>Delete</button>
        </div>
      ))
    )}
  </div>

</div>


  </div>
  );
};

export default EndpointBuilder