import React, { useRef, useState, useEffect } from 'react';
import { useTranslation } from 'react-i18next';
import { Link } from 'react-router-dom';
import { ArrowRightIcon, FolderIcon } from '@heroicons/react/24/outline';
import ProjectDropdown from '../../Shared/ProjectDropdown';
import { Project } from '../../../entities/Project';
import { Task } from '../../../entities/Task';

interface TaskProjectCardProps {
    task: Task;
    projects: Project[];
    onProjectSelect: (project: Project) => Promise<void>;
    onProjectClear: () => Promise<void>;
    onProjectCreate: (name: string) => Promise<void>;
    getProjectLink: (project: Project) => string;
}

const TaskProjectCard: React.FC<TaskProjectCardProps> = ({
    task,
    projects,
    onProjectSelect,
    onProjectClear,
    onProjectCreate,
    getProjectLink,
}) => {
    const { t } = useTranslation();
    const [projectDropdownOpen, setProjectDropdownOpen] = useState(false);
    const [projectName, setProjectName] = useState('');
    const [filteredProjects, setFilteredProjects] = useState<Project[]>([]);
    const [isCreatingProject, setIsCreatingProject] = useState(false);
    const projectDropdownRef = useRef<HTMLDivElement>(null);

    useEffect(() => {
        const handleClickOutside = (e: MouseEvent) => {
            if (
                projectDropdownOpen &&
                projectDropdownRef.current &&
                !projectDropdownRef.current.contains(e.target as Node)
            ) {
                setProjectDropdownOpen(false);
                setProjectName('');
            }
        };

        if (projectDropdownOpen) {
            document.addEventListener('mousedown', handleClickOutside);
            return () =>
                document.removeEventListener('mousedown', handleClickOutside);
        }
    }, [projectDropdownOpen]);

    const handleProjectSearch = (query: string) => {
        setProjectName(query);
        const filtered = projects.filter((p) =>
            p.name.toLowerCase().includes(query.toLowerCase())
        );
        setFilteredProjects(filtered);
    };

    const handleProjectSelection = async (project: Project) => {
        await onProjectSelect(project);
        setProjectDropdownOpen(false);
        setProjectName('');
    };

    const handleClearProject = async () => {
        await onProjectClear();
        setProjectDropdownOpen(false);
        setProjectName('');
    };

    const handleCreateProjectInline = async (name: string) => {
        setIsCreatingProject(true);
        try {
            await onProjectCreate(name);
            setProjectDropdownOpen(false);
            setProjectName('');
        } finally {
            setIsCreatingProject(false);
        }
    };

    const handleShowAllProjects = () => {
        setFilteredProjects(projects);
    };

    const containerClasses = [
        'rounded-lg',
        'shadow-sm',
        'bg-white',
        'dark:bg-gray-900',
        'transition-colors',
    ];

    if (task.Project || projectDropdownOpen) {
        containerClasses.push(
            'border-2',
            'border-gray-50',
            'dark:border-gray-800',
            'hover:border-gray-200',
            'dark:hover:border-gray-700'
        );
    }

    return (
        <div ref={projectDropdownRef} className="space-y-2">
            <div className={containerClasses.join(' ')}>
                {projectDropdownOpen ? (
                    <ProjectDropdown
                        projectName={projectName}
                        onProjectSearch={handleProjectSearch}
                        dropdownOpen={projectDropdownOpen}
                        filteredProjects={filteredProjects}
                        onProjectSelection={handleProjectSelection}
                        onCreateProject={handleCreateProjectInline}
                        isCreatingProject={isCreatingProject}
                        onShowAllProjects={handleShowAllProjects}
                        allProjects={projects}
                        selectedProject={task.Project || null}
                        onClearProject={handleClearProject}
                    />
                ) : task.Project ? (
                    <div className="bg-gray-50 dark:bg-gray-900 rounded-lg shadow-sm relative overflow-hidden">
                        <div
                            className="flex items-center justify-center overflow-hidden relative hover:opacity-90 transition-opacity cursor-pointer"
                            style={{ height: '100px' }}
                            onClick={() => setProjectDropdownOpen(true)}
                        >
                            {task.Project.image_url ? (
                                <img
                                    src={task.Project.image_url}
                                    alt={task.Project.name}
                                    className="w-full h-full object-cover"
                                />
                            ) : (
                                <div className="w-full h-full bg-gradient-to-br from-blue-500 to-purple-600 dark:from-blue-600 dark:to-purple-700"></div>
                            )}
                        </div>
                        <div className="p-3">
                            <div className="flex items-center justify-between gap-2">
                                <div
                                    className="text-md font-semibold text-gray-900 dark:text-gray-100 truncate cursor-pointer flex-1"
                                    onClick={() => setProjectDropdownOpen(true)}
                                >
                                    {task.Project.name}
                                </div>
                                <Link
                                    to={getProjectLink(task.Project)}
                                    onClick={(e) => e.stopPropagation()}
                                    className="p-1.5 rounded-full text-blue-600 dark:text-blue-400 hover:text-blue-700 dark:hover:text-blue-300 hover:bg-blue-50 dark:hover:bg-blue-900/30 transition-colors flex-shrink-0"
                                    title={t(
                                        'project.viewProject',
                                        'Go to project'
                                    )}
                                >
                                    <ArrowRightIcon className="h-4 w-4" />
                                    <span className="sr-only">
                                        {t(
                                            'project.viewProject',
                                            'Go to project'
                                        )}
                                    </span>
                                </Link>
                            </div>
                        </div>
                    </div>
                ) : (
                    <div
                        onClick={() => setProjectDropdownOpen(true)}
                        className="rounded-lg shadow-sm bg-white dark:bg-gray-900 p-6 cursor-pointer transition-colors"
                    >
                        <div className="flex flex-col items-center justify-center py-8 text-gray-500 dark:text-gray-400">
                            <FolderIcon className="h-12 w-12 mb-3 opacity-50" />
                            <span className="text-sm text-center">
                                {t('task.noProject', 'Assign to a project')}
                            </span>
                        </div>
                    </div>
                )}
            </div>
        </div>
    );
};

export default TaskProjectCard;