<?php

namespace MintyPHP\Repository\Tenant;

use MintyPHP\DB;

class TenantDepartmentRepository
{
    public static function listTenantIdsByDepartmentId(int $departmentId): array
    {
        $rows = DB::select('select tenant_id from tenant_departments where department_id = ?', (string) $departmentId);
        if (!is_array($rows)) {
            return [];
        }
        $ids = [];
        foreach ($rows as $row) {
            $data = $row['tenant_departments'] ?? $row;
            if (is_array($data) && isset($data['tenant_id'])) {
                $ids[] = (int) $data['tenant_id'];
            }
        }
        return array_values(array_unique($ids));
    }

    public static function listDepartmentIdsByTenantIds(array $tenantIds): array
    {
        $tenantIds = array_values(array_unique(array_map('intval', $tenantIds)));
        $tenantIds = array_filter($tenantIds, static fn ($id) => $id > 0);
        if (!$tenantIds) {
            return [];
        }
        $placeholders = implode(',', array_fill(0, count($tenantIds), '?'));
        $rows = DB::select(
            'select department_id from tenant_departments where tenant_id in (' . $placeholders . ')',
            ...array_map('strval', $tenantIds)
        );
        if (!is_array($rows)) {
            return [];
        }
        $ids = [];
        foreach ($rows as $row) {
            $data = $row['tenant_departments'] ?? $row;
            if (is_array($data) && isset($data['department_id'])) {
                $ids[] = (int) $data['department_id'];
            }
        }
        return array_values(array_unique($ids));
    }

    public static function listDepartmentMapByTenantIds(array $tenantIds): array
    {
        $tenantIds = array_values(array_unique(array_map('intval', $tenantIds)));
        $tenantIds = array_filter($tenantIds, static fn ($id) => $id > 0);
        if (!$tenantIds) {
            return [];
        }
        $placeholders = implode(',', array_fill(0, count($tenantIds), '?'));
        $rows = DB::select(
            'select tenant_id, department_id from tenant_departments where tenant_id in (' . $placeholders . ')',
            ...array_map('strval', $tenantIds)
        );
        if (!is_array($rows)) {
            return [];
        }
        $map = [];
        foreach ($rows as $row) {
            $data = $row['tenant_departments'] ?? $row;
            if (is_array($data) && isset($data['tenant_id'], $data['department_id'])) {
                $tenantId = (int) $data['tenant_id'];
                $departmentId = (int) $data['department_id'];
                if ($tenantId > 0 && $departmentId > 0) {
                    $map[$tenantId] ??= [];
                    $map[$tenantId][] = $departmentId;
                }
            }
        }
        foreach ($map as $tenantId => $items) {
            $map[$tenantId] = array_values(array_unique($items));
        }
        return $map;
    }

    public static function replaceForDepartment(int $departmentId, array $tenantIds): bool
    {
        DB::delete('delete from tenant_departments where department_id = ?', (string) $departmentId);
        $tenantIds = array_values(array_unique(array_map('intval', $tenantIds)));
        $tenantIds = array_filter($tenantIds, static fn ($id) => $id > 0);
        if (!$tenantIds) {
            return true;
        }

        foreach ($tenantIds as $tenantId) {
            DB::insert(
                'insert into tenant_departments (tenant_id, department_id, created) values (?,?,NOW())',
                (string) $tenantId,
                (string) $departmentId
            );
        }

        return true;
    }
}