import {
    DraggableAttributes,
    DraggableSyntheticListeners,
} from "@dnd-kit/core";
import {
    ElementsType,
    FormElement,
    FormElementInstance,
    SubmitFunction,
} from "../FormElements";
import useDesigner from "../hooks/useDesigner";
import z from "zod";
import {useForm,Controller} from 'react-hook-form'
import {zodResolver}  from '@hookform/resolvers/zod'
import { useEffect, useRef, useState } from "react";
import {Alert, Button, Checkbox, Divider, FormControlLabel, IconButton, Stack, TextField, Tooltip, Typography} from '@mui/material';
import Select, { SingleValue } from "react-select";
import AsyncSelect from 'react-select/async';
import AddIcon from '@mui/icons-material/Add';
import CloseIcon from '@mui/icons-material/Close';
import axios from "axios";
import { toast } from "react-toastify";
const type: ElementsType = "SelectField";

const extraAttributes = {
    label: "Select Field",
    helperText: "Helper text",
    required: false,
    placeholder: "Type anything....",
    options: [],
    isSearchable: false,
    webUrl: null,
    path: '',
    commonLabel:'',
    commonValue:''
};

const propertiseSchema = z.object({
    label: z.string().min(5).max(50),
    helperText: z.string().max(200),
    required: z.boolean().default(false),
    placeholder: z.string().max(50),
    id:z.string().min(1).max(200),
    options:z.array(z.string()).default([]),
    isSearchable:z.boolean().default(false),
    webUrl: z.string().url({ message: 'Please enter a valid URL' }).max(500).nullable().optional(),
    path:z.string().max(100).nullable().optional(),
    commonLabel:z.string().max(100).nullable().optional(),
    commonValue:z.string().max(100).nullable().optional()

})


export const SelectFieldFormElement: FormElement = {
    type,

    construct: (id: string) => ({
        id,
        type,
        extraAttributes,
    }),
    designerBtnElement: {
        icon: (
            <svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
<path d="M7 13L12 18L17 13M7 6L12 11L17 6" stroke="black" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round"/>
</svg>
        ),
        label: "Select Field",
    },
    designerComponent: DesignerComponent,
    formComponent: FormComponent,
    propertiseComponent: PropertiseComponent,
    validate: (formElement: FormElementInstance, currentValue: string):boolean => {
        const element = formElement as CustomInstance;
        if(element.extraAttributes.required){
            return currentValue.length > 0;
        }
        return true;
    },
};

type CustomInstance = FormElementInstance & {
    extraAttributes: typeof extraAttributes;
};

function DesignerComponent({
    pageId,
    elementInstance,
    listeners,
    attributes,
}: {
    pageId: string;
    elementInstance: FormElementInstance;
    listeners?: DraggableSyntheticListeners;
    attributes?: DraggableAttributes;
}) {
    const { removeElement, setSelectedItem,updateElement,setSelectedPageId } = useDesigner();
    const element = elementInstance as CustomInstance;
    const { label, placeholder, helperText, required } = element.extraAttributes;

    function updateRequired() {
        updateElement(pageId,element.id, {
            ...element,
            extraAttributes: {
                ...element.extraAttributes,
                required: !element.extraAttributes.required,
            },
        });
    }
    return (
        <div
            className="main-question-wrapper"
            key={element.id}
            onClick={(e) => {
                e.stopPropagation();
                setSelectedItem(element);
                setSelectedPageId(pageId);
                
            }}
        >
            <div className="drag-area" {...listeners} {...attributes}>
                <svg viewBox="0 0 20 20">
                    <path d="M7 2a2 2 0 1 0 .001 4.001A2 2 0 0 0 7 2zm0 6a2 2 0 1 0 .001 4.001A2 2 0 0 0 7 8zm0 6a2 2 0 1 0 .001 4.001A2 2 0 0 0 7 14zm6-8a2 2 0 1 0-.001-4.001A2 2 0 0 0 13 6zm0 2a2 2 0 1 0 .001 4.001A2 2 0 0 0 13 8zm0 6a2 2 0 1 0 .001 4.001A2 2 0 0 0 13 14z"></path>
                </svg>
            </div>
            <div className="input-area">
                <div style={{paddingBottom:'16px'}}>
                    <h5 className="m-0 p-0">
                        {label} {required && "*"}
                    </h5>
                    {helperText && <p className="m-0 desc mt-1">{helperText}</p>}
                </div>
                <input
                    type="text"
                    readOnly
                    disabled
                    placeholder={placeholder}
                />
            </div>

            <div className="question-actions">
                <div></div>
                <div className="right-actions">
                    <button className="light-btn" onClick={(e) => {e.stopPropagation();setSelectedItem(element)}}>
                        <svg
                            width="18"
                            height="18"
                            viewBox="0 0 24 24"
                            fill="none"
                            xmlns="http://www.w3.org/2000/svg"
                        >
                            <path
                                d="M3 8L15 8M15 8C15 9.65686 16.3431 11 18 11C19.6569 11 21 9.65685 21 8C21 6.34315 19.6569 5 18 5C16.3431 5 15 6.34315 15 8ZM9 16L21 16M9 16C9 17.6569 7.65685 19 6 19C4.34315 19 3 17.6569 3 16C3 14.3431 4.34315 13 6 13C7.65685 13 9 14.3431 9 16Z"
                                stroke="black"
                                strokeWidth="2"
                                strokeLinecap="round"
                                strokeLinejoin="round"
                            />
                        </svg>
                        Settings
                    </button>
                    <button className="light-btn" onClick={(e) => {updateRequired()}} style={{background:required?'rgba(0,0,0,0.03)':'transparent'}}>
                        <svg
                            className="required-icon"
                            version="1.1"
                            xmlns="http://www.w3.org/2000/svg"
                            width="13"
                            height="13"
                            viewBox="0 0 256 256"
                        >
                            <path
                                fill="#000000"
                                d="M223,160.1L167.3,128L223,95.9c9.4-5.4,12.6-17.5,7.2-26.9c-5.4-9.4-17.5-12.6-26.9-7.2l-55.6,32.1V29.7c0-10.9-8.8-19.7-19.7-19.7c-10.9,0-19.7,8.8-19.7,19.7v64.3L52.7,61.8c-9.4-5.4-21.4-2.2-26.9,7.2c-5.4,9.4-2.2,21.4,7.2,26.9L88.7,128L33,160.1c-9.4,5.4-12.6,17.5-7.2,26.9c5.4,9.4,17.5,12.6,26.9,7.2l55.6-32.1v64.3c0,10.9,8.8,19.7,19.7,19.7c10.9,0,19.7-8.8,19.7-19.7V162l55.6,32.1c9.4,5.4,21.4,2.2,26.9-7.2C235.6,177.6,232.4,165.6,223,160.1z"
                            />
                        </svg>
                        Required
                    </button>
                    <button
                        className="light-btn"
                        onClick={(e) => {
                            e.stopPropagation;
                            removeElement(pageId,element.id);
                        }}
                    >
                        <svg
                            width="18"
                            height="18"
                            viewBox="0 0 24 24"
                            fill="none"
                            xmlns="http://www.w3.org/2000/svg"
                        >
                            <path
                                d="M9 3H15M3 6H21M19 6L18.2987 16.5193C18.1935 18.0975 18.1409 18.8867 17.8 19.485C17.4999 20.0118 17.0472 20.4353 16.5017 20.6997C15.882 21 15.0911 21 13.5093 21H10.4907C8.90891 21 8.11803 21 7.49834 20.6997C6.95276 20.4353 6.50009 20.0118 6.19998 19.485C5.85911 18.8867 5.8065 18.0975 5.70129 16.5193L5 6M10 10.5V15.5M14 10.5V15.5"
                                stroke="black"
                                strokeWidth="2"
                                strokeLinecap="round"
                                strokeLinejoin="round"
                            />
                        </svg>
                        Delete
                    </button>
                </div>
            </div>
        </div>
    );
}
function FormComponent({
    elementInstance,
    submitValue,
    isInvalid,
    defaultValue
}: {
    elementInstance: FormElementInstance;
    submitValue?: SubmitFunction;
    isInvalid?: boolean;
    defaultValue?:any
}) {
    const { removeElement, setSelectedItem,selectedItem } = useDesigner();
    const [value,setValue] =useState<SingleValue<{ value: string; label: string }>>(null);
    const [error,setError] =useState(false);
    const [arrayError,setArrayError] = useState(false)
    useEffect(()=>{
        setError(isInvalid === true);

    },[isInvalid])
    const element = elementInstance as CustomInstance;
    const { label, placeholder, helperText, required,isSearchable,options,webUrl,path,commonValue,commonLabel } = element.extraAttributes;

    const fetchData = async (url:string, queryParams:any) => {
        try {
            const response = await axios.get(url, {
                params: queryParams
            });
    
            return response.data; 
        } catch (error) {
            console.error('Error fetching data:', error);
            throw error;
        }
    };
    const loadOptions = async (inputValue:string, callback: (options: { value: any; label: any; }[]) => void):Promise<any> => {
        if (!inputValue) {
            callback([]);
            return;
        }
        if (!webUrl || (!commonLabel && !commonValue)) {
            setArrayError(true)
            return;
        }
    
        const queryParams = {
            q: inputValue,
        };
    
        try {
            const data = await fetchData(webUrl, queryParams);
                if(!Array.isArray(data[path])){
                    setArrayError(true);
                    return;
                }
            if (data[path]) {
                const options = data[path].map((option:any) => ({ value: option[commonValue], label: option[commonLabel] }));
                callback(options);
                setArrayError(false)
            } else {
                callback([]);
            }
        } catch (error) {
            console.error('Error loading options:', error);
            toast.error('Error loading options:');
            callback([]);
        }
    };
    return (
        <div
            className="main-question-wrapper prev"
        >
            <div className="input-area">
                <div style={{paddingBottom:'16px'}}>
                    <h5 className="m-0 p-0">
                        {label} {required && "*"}
                    </h5>
                    {helperText && <p className="m-0 desc mt-1">{helperText}</p>}
                </div>
                {webUrl == '' ? (
                    <Select defaultValue={value}  options={options.map((option,index) => ({ value: option, label: option }))} isSearchable={isSearchable} placeholder={placeholder} onChange={(value)=>{
                        console.log(value)
                        setValue(value);
                        if(!submitValue)return;
                        if(!value)return;
                        const valid = SelectFieldFormElement.validate(element,value?.label);
                        setError(!valid);
                        submitValue(element.id,value?.label);
                    }}>
                    </Select>
                ):
                (
                    <>
                    <AsyncSelect loadOptions={loadOptions}  isClearable  isSearchable={isSearchable} placeholder={placeholder} onChange={(value)=>{
                        console.log(value,'asd')
                        setValue(value);
                        if(!submitValue)return;
                        if(!value)return;
                        const valid = SelectFieldFormElement.validate(element,value?.label);
                        setError(!valid);
                        submitValue(element.id,value?.label);
                    }}>
                    </AsyncSelect>
                    {arrayError && <Alert sx={{width:'fit-content',position:'absolute',bottom:"5px"}} severity="error">Make sure all fields are valid for web service url</Alert>}
                    </>
                )
                }
                
            </div>
            {
                error && 
                <Alert sx={{width:'94%',position:'absolute',bottom:"5px"}} severity="error">Response is required</Alert>
            }
        </div>
    );
}

type propertiseFormSchemaType = z.infer<typeof propertiseSchema>
function PropertiseComponent({pageId,elementInstance}:{
    pageId:string
    ,elementInstance: FormElementInstance}){
        const element = elementInstance as CustomInstance;
        const {control, handleSubmit, formState: { errors }, getValues,reset,setError,setValue,watch} = useForm<propertiseFormSchemaType>({
            resolver: zodResolver(propertiseSchema),
            mode:'onChange',
            defaultValues:{
                label: element.extraAttributes.label,
                helperText: element.extraAttributes.helperText,
                required: element.extraAttributes.required,
                placeholder: element.extraAttributes.placeholder,
                id:element.id,
                options: element.extraAttributes.options,
                webUrl: element.extraAttributes.webUrl,
                path: element.extraAttributes.path,
                commonLabel: element.extraAttributes.commonLabel,
                commonValue: element.extraAttributes.commonValue
            }
        });


        const {updateElement,elements,setSelectedItem,selectedPageId} = useDesigner();
        const pageIndex = elements.findIndex(page => page.id == selectedPageId)
        const found = elements[pageIndex].questions.find(e => e.id === element.id)
        useEffect(() => {
            if (found) {
                reset({
                    id: found.id,
                    label: found.extraAttributes?.label,
                    helperText: found.extraAttributes?.helperText,
                    required: found.extraAttributes?.required,
                    placeholder: found.extraAttributes?.placeholder,
                    options: found.extraAttributes?.options,
                    webUrl: found.extraAttributes?.webUrl,
                    path: found.extraAttributes?.path,
                    commonLabel: found.extraAttributes?.commonLabel,
                    commonValue: found.extraAttributes?.commonValue
                });
            }
        }, [element, reset]);
        // useEffect(() => {
        //     reset(element.extraAttributes);
        // }, [element, reset]);

        function applyChanges(values:propertiseFormSchemaType){
            const {label,helperText,placeholder,required,options,isSearchable,webUrl,path,commonLabel,commonValue} = values;
            updateElement(pageId,element.id,{
                ...element,extraAttributes:{
                    label,
                    helperText,
                    placeholder,
                    required,
                    options,
                    isSearchable,
                    webUrl,
                    path,commonLabel,commonValue
                }
            })
        }
        const isIdUnique = (id: string) => {
            const allQuestions = elements.flatMap(page => page.questions);
            return !allQuestions.some(el => el.id === id);
        };
        function idchange(value:string){
            if(isIdUnique(value)){
                updateElement(pageId,element.id,{
                    ...element,id:value
                })
                setSelectedItem(element);
                return;
            }else{
                setError('id', {
                    type: 'manual',
                    message: 'ID must be unique'
                });
            }
        }
        return (
            <>
            <Typography variant="body1" color="GrayText">General</Typography>
                <Divider orientation="horizontal" sx={{ marginBottom: 3, borderColor: 'rgba(0,0,0,0.5)' }} />
                <Stack direction={'row'} spacing={1} alignItems={"center"} mb={2}>
                <Controller
                        name="id"
                        shouldUnregister
                        control={control}
                        render={({ field }) => (
                            <TextField
                                {...field}
                                onBlur={e=>idchange(e.target.value)}
                                error={!!errors.id}
                                helperText={errors.id ? errors.id.message : ''}
                                label="Question ID"
                                fullWidth
                                variant="outlined"
                                size="small"
                                multiline
                            />
                        )}
                    />
                    <Tooltip title="A Question ID that is not visible to users">
                    <IconButton>
                    <svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
                    <path d="M9.09 9C9.3251 8.33167 9.78915 7.76811 10.4 7.40913C11.0108 7.05016 11.7289 6.91894 12.4272 7.03871C13.1255 7.15849 13.7588 7.52152 14.2151 8.06353C14.6713 8.60553 14.9211 9.29152 14.92 10C14.92 12 11.92 13 11.92 13M12 17H12.01M22 12C22 17.5228 17.5228 22 12 22C6.47715 22 2 17.5228 2 12C2 6.47715 6.47715 2 12 2C17.5228 2 22 6.47715 22 12Z" stroke="#72C4BA" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round"/>
                    </svg>

                    </IconButton>
                    </Tooltip>
                </Stack>
            <form onChange={handleSubmit(applyChanges)} className="mt-4 mx-auto w-100">
                
                <Controller
                    name="label"
                    control={control}
                    render={({ field }) => (
                        <TextField
                            {...field}
                            error={!!errors.label}
                            helperText={errors.label ? "Please enter a valid value" : ''}
                            label="Label"
                            fullWidth
                            variant="outlined"
                            size="small"
                        />
                    )}
                />

                <Controller
                    name="helperText"
                    control={control}
                    render={({ field }) => (
                        <TextField
                            {...field}
                            error={!!errors.helperText}
                            multiline
                            minRows={2}
                            maxRows={4}
                            helperText={errors.helperText ? "Please enter a valid value" : ''}
                            label="Description"
                            fullWidth
                            sx={{ marginY: 2 }}
                            variant="outlined"
                            size="small"
                        />
                    )}
                />

                <Controller
                    name="placeholder"
                    control={control}
                    render={({ field }) => (
                        <TextField
                            {...field}
                            error={!!errors.placeholder}
                            helperText={errors.placeholder ? "Please enter a valid value" : ''}
                            label="Placeholder"
                            fullWidth
                            variant="outlined"
                            size="small"
                        />
                    )}
                />
                <Controller
                    name="options"
                    control={control}
                    render={({ field }) => (
                        <>
                        <Stack direction='row' alignItems='center' mt={2} justifyContent='space-between'>
                            <Typography variant="body1" color='GrayText'>Options</Typography>
                            <Button variant="outlined" onClick={(e)=>{
                                e.preventDefault();
                                setValue('options',field.value.concat('New Option'))
                            }} startIcon={<AddIcon />}>Add</Button>
                        </Stack>
                        <Stack mt={1} gap={1}>
                            {watch('options').map((option, index) => (
                                <Stack key={index} direction='row' justifyContent='space-between'>
                                        <TextField value={option} size="small" onChange={(e)=>{field.value[index] = e.target.value;field.onChange(field.value)}}/>
                                        <IconButton onClick={(e)=>{
                                            e.preventDefault();
                                            const newOptions = [...field.value];
                                            newOptions.splice(index, 1);
                                            field.onChange(newOptions);
                                        }}>
                                            <CloseIcon />
                                        </IconButton>
                                </Stack>
                            ))}
                        </Stack>
                        </>
                    )}
                />
            </form>
            <Stack direction="row" spacing={1} sx={{ marginTop: 1 }} alignItems="center">
                <Controller
                    name="required"
                    control={control}
                    render={({ field }) => (
                        <Checkbox
                            {...field}
                            checked={field.value}
                            onChange={(e) => {
                                field.onChange(e.target.checked);
                                applyChanges({ ...getValues(), required: e.target.checked });
                            }}
                        />
                    )}
                />
                <Typography>Required</Typography>
            </Stack>
            <Stack direction="row" spacing={1} sx={{ marginTop: 0 }} alignItems="center">
                <Controller
                    name="isSearchable"
                    control={control}
                    render={({ field }) => (
                        <Checkbox
                            {...field}
                            checked={field.value}
                            onChange={(e) => {
                                field.onChange(e.target.checked);
                                applyChanges({ ...getValues(), isSearchable: e.target.checked });
                            }}
                        />
                    )}
                />
                <Typography>Searchable</Typography>
            </Stack>

            <form onChange={handleSubmit(applyChanges)} className="mt-4 mx-auto w-100 d-flex flex-column gap-2">
                <Typography variant="body1" fontWeight='bold' color='text.secondary'>Options from web</Typography>
                <Controller
                    name="webUrl"
                    control={control}
                    render={({ field }) => (
                        <TextField
                            {...field}
                            error={!!errors.webUrl && field.value !== ''}
                            helperText={errors.webUrl ? "Please enter a valid url" : ''}
                            label="webUrl"
                            fullWidth
                            variant="outlined"
                            size="small"
                            placeholder='Ex.: https://api.example.com/books'
                        />
                    )}
                />
                <Controller
                    name="path"
                    control={control}
                    render={({ field }) => (
                        <TextField
                            {...field}
                            error={!!errors.path}
                            helperText={errors.path ? "Please enter a valid value" : ''}
                            label="Path to data"
                            fullWidth
                            variant="outlined"
                            size="small"
                            placeholder='Ex.: categories.fiction'
                        />
                    )}
                />
                <Controller
                    name="commonLabel"
                    control={control}
                    render={({ field }) => (
                        <TextField
                            {...field}
                            error={!!errors.commonLabel}
                            helperText={errors.commonLabel ? "Please enter a valid value" : ''}
                            label="Common label value"
                            fullWidth
                            variant="outlined"
                            size="small"
                            placeholder='Enter Uniform Property'
                        />
                    )}
                />
                <Controller
                    name="commonValue"
                    control={control}
                    render={({ field }) => (
                        <TextField
                            {...field}
                            error={!!errors.commonValue}
                            helperText={errors.commonValue ? "Please enter a valid value" : ''}
                            label="Common Value"
                            fullWidth
                            variant="outlined"
                            size="small"
                            placeholder='Enter Uniform Property'
                        />
                    )}
                />
                {
                    watch('webUrl') && watch('path') && <Typography color='success' fontSize='12px'>Please check preview</Typography>
                }
            </form>

        </>
        )
}