import { useState, useRef } from 'react';
import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
import { faPhoneHangup } from '@fortawesome/pro-duotone-svg-icons';
import { Dialog, Modal, ModalOverlay } from '@/components/application/modals/modal';
import { FeaturedIcon } from '@/components/foundations/featured-icon/featured-icon';
import { TextArea } from '@/components/base/textarea/textarea';
import type { FC } from 'react';
import type { CallDisposition } from '@/types/entities';
import { cx } from '@/utils/cx';

const PhoneHangUpIcon: FC<{ className?: string }> = ({ className }) => (
    <FontAwesomeIcon icon={faPhoneHangup} className={className} />
);

const dispositionOptions: Array<{
    value: CallDisposition;
    label: string;
    activeClass: string;
    defaultClass: string;
}> = [
    {
        value: 'APPOINTMENT_BOOKED',
        label: 'Appointment Booked',
        activeClass: 'bg-success-solid text-white border-transparent',
        defaultClass: 'bg-success-primary text-success-primary border-success',
    },
    {
        value: 'FOLLOW_UP_SCHEDULED',
        label: 'Follow-up Needed',
        activeClass: 'bg-brand-solid text-white border-transparent',
        defaultClass: 'bg-brand-primary text-brand-secondary border-brand',
    },
    {
        value: 'INFO_PROVIDED',
        label: 'Info Provided',
        activeClass: 'bg-utility-blue-light-600 text-white border-transparent',
        defaultClass: 'bg-utility-blue-light-50 text-utility-blue-light-700 border-utility-blue-light-200',
    },
    {
        value: 'NO_ANSWER',
        label: 'No Answer',
        activeClass: 'bg-warning-solid text-white border-transparent',
        defaultClass: 'bg-warning-primary text-warning-primary border-warning',
    },
    {
        value: 'WRONG_NUMBER',
        label: 'Wrong Number',
        activeClass: 'bg-secondary-solid text-white border-transparent',
        defaultClass: 'bg-secondary text-secondary border-secondary',
    },
    {
        value: 'CALLBACK_REQUESTED',
        label: 'Not Interested',
        activeClass: 'bg-error-solid text-white border-transparent',
        defaultClass: 'bg-error-primary text-error-primary border-error',
    },
];

type DispositionModalProps = {
    isOpen: boolean;
    callerName: string;
    callerDisconnected: boolean;
    defaultDisposition?: CallDisposition | null;
    onSubmit: (disposition: CallDisposition, notes: string) => void;
    onDismiss?: () => void;
};

export const DispositionModal = ({ isOpen, callerName, callerDisconnected, defaultDisposition, onSubmit, onDismiss }: DispositionModalProps) => {
    const [selected, setSelected] = useState<CallDisposition | null>(null);
    const [notes, setNotes] = useState('');
    const appliedDefaultRef = useRef<CallDisposition | null | undefined>(undefined);

    // Pre-select when modal opens with a suggestion
    if (isOpen && defaultDisposition && appliedDefaultRef.current !== defaultDisposition) {
        appliedDefaultRef.current = defaultDisposition;
        setSelected(defaultDisposition);
    }

    const handleSubmit = () => {
        if (selected === null) return;
        onSubmit(selected, notes);
        setSelected(null);
        setNotes('');
        appliedDefaultRef.current = undefined;
    };

    return (
        <ModalOverlay isOpen={isOpen} isDismissable onOpenChange={(open) => { if (!open && onDismiss) onDismiss(); }}>
            <Modal className="sm:max-w-md">
                <Dialog>
                    {() => (
                        <div className="flex w-full flex-col rounded-xl bg-primary shadow-xl ring-1 ring-secondary overflow-hidden">
                            {/* Header */}
                            <div className="flex flex-col items-center gap-3 px-6 pt-6 pb-4">
                                <FeaturedIcon icon={PhoneHangUpIcon} color={callerDisconnected ? 'warning' : 'error'} theme="light" size="md" />
                                <div className="text-center">
                                    <h2 className="text-lg font-semibold text-primary">
                                        {callerDisconnected ? 'Call Disconnected' : 'End Call'}
                                    </h2>
                                    <p className="mt-1 text-sm text-tertiary">
                                        {callerDisconnected
                                            ? `${callerName} disconnected. What was the outcome?`
                                            : `Select a reason to end the call with ${callerName}.`
                                        }
                                    </p>
                                </div>
                            </div>

                            {/* Disposition options */}
                            <div className="px-6 pb-4">
                                <div className="grid grid-cols-2 gap-2">
                                    {dispositionOptions.map((option) => {
                                        const isSelected = selected === option.value;
                                        return (
                                            <button
                                                key={option.value}
                                                type="button"
                                                onClick={() => setSelected(option.value)}
                                                className={cx(
                                                    'cursor-pointer rounded-xl border-2 p-3 text-sm font-semibold transition duration-100 ease-linear',
                                                    isSelected
                                                        ? cx(option.activeClass, 'ring-2 ring-brand')
                                                        : option.defaultClass,
                                                )}
                                            >
                                                {option.label}
                                            </button>
                                        );
                                    })}
                                </div>

                                <div className="mt-3">
                                    <TextArea
                                        label="Notes (optional)"
                                        placeholder="Add any notes about this call..."
                                        value={notes}
                                        onChange={(value) => setNotes(value)}
                                        rows={2}
                                        textAreaClassName="text-sm"
                                    />
                                </div>
                            </div>

                            {/* Footer */}
                            <div className="border-t border-secondary px-6 py-4">
                                <button
                                    type="button"
                                    onClick={handleSubmit}
                                    disabled={selected === null}
                                    className={cx(
                                        'w-full rounded-xl px-6 py-2.5 text-sm font-semibold transition duration-100 ease-linear',
                                        selected !== null
                                            ? 'cursor-pointer bg-error-solid text-white hover:bg-error-solid_hover'
                                            : 'cursor-not-allowed bg-disabled text-disabled',
                                    )}
                                >
                                    {callerDisconnected
                                        ? (selected ? 'Submit & Close' : 'Select a reason')
                                        : (selected ? 'End Call & Submit' : 'Select a reason to end call')
                                    }
                                </button>
                            </div>
                        </div>
                    )}
                </Dialog>
            </Modal>
        </ModalOverlay>
    );
};