<?php

namespace App\Repositories;

use App\Models\Deceased;
use Illuminate\Contracts\Pagination\LengthAwarePaginator;
use Illuminate\Database\Eloquent\Collection;
use Illuminate\Support\Facades\DB;

class DeceasedRepository implements DeceasedRepositoryInterface
{
    /**
     * Get all deceased with optional filtering and pagination
     *
     * @param array $filters
     * @param int $perPage
     * @return LengthAwarePaginator
     */
    public function getAllPaginated(array $filters = [], int $perPage = 15): LengthAwarePaginator
    {
        $query = Deceased::query();

        // Apply filters
        if (!empty($filters['search'])) {
            $query->where(function($q) use ($filters) {
                $q->where('last_name', 'LIKE', "%{$filters['search']}%")
                  ->orWhere('first_name', 'LIKE', "%{$filters['search']}%");
            });
        }

        // Apply date range filters
        if (!empty($filters['start_date'])) {
            $query->where('death_date', '>=', $filters['start_date']);
        }

        if (!empty($filters['end_date'])) {
            $query->where('death_date', '<=', $filters['end_date']);
        }

        // Apply sorting
        $sortBy = $filters['sort_by'] ?? 'created_at';
        $sortOrder = $filters['sort_order'] ?? 'desc';
        $query->orderBy($sortBy, $sortOrder);

        // Eager load related counts
        $query->withCount(['documents', 'interventions']);

        return $query->paginate($perPage);
    }

    /**
     * Find a deceased by ID
     *
     * @param int $id
     * @return Deceased
     */
    public function findById(int $id): Deceased
    {
        return Deceased::findOrFail($id);
    }

    /**
     * Create a new deceased record
     *
     * @param array $data
     * @return Deceased
     */
    public function create(array $data): Deceased
    {
        return DB::transaction(function () use ($data) {
            return Deceased::create($data);
        });
    }

    /**
     * Update an existing deceased record
     *
     * @param Deceased $deceased
     * @param array $data
     * @return Deceased
     */
    public function update(Deceased $deceased, array $data): Deceased
    {
        return DB::transaction(function () use ($deceased, $data) {
            $deceased->update($data);
            return $deceased;
        });
    }

    /**
     * Delete a deceased record
     *
     * @param Deceased $deceased
     * @return bool
     */
    public function delete(Deceased $deceased): bool
    {
        return DB::transaction(function () use ($deceased) {
            return $deceased->delete();
        });
    }
    /**
     * Search deceased by name
     *
     * @param string $name
     * @return Collection
     */
    public function searchByName(string $name): Collection
    {
        return Deceased::where(function($query) use ($name) {
            $query->where('last_name', 'LIKE', "%{$name}%")
                  ->orWhere('first_name', 'LIKE', "%{$name}%")
                  ->orWhere(DB::raw("CONCAT(last_name, ' ', first_name)"), 'LIKE', "%{$name}%");
        })
        ->orderBy('last_name', 'asc')
        ->orderBy('first_name', 'asc')
        ->get();
    }
}