<?php

namespace MintyPHP\Repository\Tenant;

use MintyPHP\DB;

/** Persists Microsoft Entra ID OAuth settings per tenant, including encrypted client secrets. */
class TenantMicrosoftAuthRepository implements TenantMicrosoftAuthRepositoryInterface
{
    private function unwrap($row): ?array
    {
        if (!$row || !is_array($row)) {
            return null;
        }
        if (isset($row['tenant_auth_microsoft']) && is_array($row['tenant_auth_microsoft'])) {
            return $row['tenant_auth_microsoft'];
        }
        return $row;
    }

    public function findByTenantId(int $tenantId): ?array
    {
        $row = DB::selectOne(
            'select id, tenant_id, enabled, enforce_microsoft_login, sync_profile_on_login, sync_profile_fields, entra_tenant_id, allowed_domains, use_shared_app, client_id_override, client_secret_override_enc, auto_remember_mode, created, modified from tenant_auth_microsoft where tenant_id = ? limit 1',
            (string) $tenantId
        );
        return $this->unwrap($row);
    }

    public function listByTenantIds(array $tenantIds): array
    {
        $tenantIds = toIntIds($tenantIds);
        if (!$tenantIds) {
            return [];
        }

        $placeholders = implode(',', array_fill(0, count($tenantIds), '?'));
        $rows = DB::select(
            'select id, tenant_id, enabled, enforce_microsoft_login, sync_profile_on_login, sync_profile_fields, entra_tenant_id, allowed_domains, use_shared_app, client_id_override, client_secret_override_enc, auto_remember_mode, created, modified from tenant_auth_microsoft where tenant_id in (' . $placeholders . ')',
            ...array_map('strval', $tenantIds)
        );

        if (!is_array($rows)) {
            return [];
        }

        $result = [];
        foreach ($rows as $row) {
            $item = $this->unwrap($row);
            if (!is_array($item)) {
                continue;
            }
            $tenantId = (int) ($item['tenant_id'] ?? 0);
            if ($tenantId <= 0) {
                continue;
            }
            $result[$tenantId] = $item;
        }

        return $result;
    }

    public function upsertByTenantId(int $tenantId, array $data): bool
    {
        $autoRememberMode = $data['auto_remember_mode'] ?? null;
        $autoRememberModeParam = $autoRememberMode !== null ? (string) (int) $autoRememberMode : null;

        $result = DB::update(
            'insert into tenant_auth_microsoft (tenant_id, enabled, enforce_microsoft_login, sync_profile_on_login, sync_profile_fields, entra_tenant_id, allowed_domains, use_shared_app, client_id_override, client_secret_override_enc, auto_remember_mode, created) values (?,?,?,?,?,?,?,?,?,?,?,NOW()) ' .
            'on duplicate key update enabled = values(enabled), enforce_microsoft_login = values(enforce_microsoft_login), sync_profile_on_login = values(sync_profile_on_login), sync_profile_fields = values(sync_profile_fields), entra_tenant_id = values(entra_tenant_id), ' .
            'allowed_domains = values(allowed_domains), use_shared_app = values(use_shared_app), client_id_override = values(client_id_override), ' .
            'client_secret_override_enc = values(client_secret_override_enc), auto_remember_mode = values(auto_remember_mode), modified = NOW()',
            (string) $tenantId,
            !empty($data['enabled']) ? '1' : '0',
            !empty($data['enforce_microsoft_login']) ? '1' : '0',
            !empty($data['sync_profile_on_login']) ? '1' : '0',
            $data['sync_profile_fields'] ?? null,
            $data['entra_tenant_id'] ?? null,
            $data['allowed_domains'] ?? null,
            !empty($data['use_shared_app']) ? '1' : '0',
            $data['client_id_override'] ?? null,
            $data['client_secret_override_enc'] ?? null,
            $autoRememberModeParam
        );

        return $result !== false;
    }

    public function findEnabledWithExplicitDomain(string $domain): array
    {
        $domain = strtolower(trim($domain));
        if ($domain === '') {
            return [];
        }

        $rows = DB::select(
            "select tenant_id, allowed_domains from tenant_auth_microsoft where enabled = 1 and allowed_domains is not null and allowed_domains != '' and FIND_IN_SET(?, allowed_domains) > 0",
            $domain
        );

        if (!is_array($rows)) {
            return [];
        }

        $result = [];
        foreach ($rows as $row) {
            $item = $this->unwrap($row);
            if (!is_array($item)) {
                continue;
            }
            $tenantId = (int) ($item['tenant_id'] ?? 0);
            if ($tenantId <= 0) {
                continue;
            }
            $result[] = ['tenant_id' => $tenantId, 'allowed_domains' => (string) ($item['allowed_domains'] ?? '')];
        }

        return $result;
    }
}
