<?php

declare(strict_types=1);

namespace app\adminapi\logic\stats;

use app\adminapi\logic\dept\DeptLogic;
use app\common\model\auth\AdminDept;
use app\common\model\dept\Dept;
use app\common\model\stats\PersonalAccountCost;
use app\common\model\stats\PersonalYeji;
use app\common\service\DataScope\DataScopeService;
use think\facade\Config;

trait PersonalStatsScopeTrait
{
    protected static function resolvePrimaryDeptId(int $adminId): int
    {
        if ($adminId <= 0) {
            return 0;
        }
        $deptId = AdminDept::where('admin_id', $adminId)->value('dept_id');

        return (int) ($deptId ?: 0);
    }

    /**
     * @param array<int, int> $creatorIds
     * @return array{0: array<int, int>, 1: array<int, string>, 2: array<int, string>}
     *   [adminId => deptId, deptId => name, deptId => "祖/父/当前"]
     */
    protected static function loadAdminDeptMap(array $creatorIds): array
    {
        $creatorIds = array_values(array_unique(array_filter(array_map('intval', $creatorIds))));
        if ($creatorIds === []) {
            return [[], [], []];
        }
        $rows = AdminDept::whereIn('admin_id', $creatorIds)
            ->field('admin_id, dept_id')
            ->select()
            ->toArray();

        $adminToDeptId = [];
        foreach ($rows as $row) {
            $adminId = (int) ($row['admin_id'] ?? 0);
            $deptId = (int) ($row['dept_id'] ?? 0);
            if ($adminId <= 0 || $deptId <= 0) {
                continue;
            }
            if (!isset($adminToDeptId[$adminId])) {
                $adminToDeptId[$adminId] = $deptId;
            }
        }

        if ($adminToDeptId === []) {
            return [[], [], []];
        }

        $allDeptRows = Dept::field('id, pid, name')->select()->toArray();
        $deptIndex = [];
        foreach ($allDeptRows as $row) {
            $id = (int) ($row['id'] ?? 0);
            if ($id <= 0) {
                continue;
            }
            $deptIndex[$id] = [
                'pid' => (int) ($row['pid'] ?? 0),
                'name' => (string) ($row['name'] ?? ''),
            ];
        }

        $deptNameMap = [];
        $deptPathMap = [];
        foreach (array_unique(array_values($adminToDeptId)) as $deptId) {
            $deptId = (int) $deptId;
            if ($deptId <= 0 || !isset($deptIndex[$deptId])) {
                continue;
            }
            $deptNameMap[$deptId] = $deptIndex[$deptId]['name'];
            $deptPathMap[$deptId] = self::resolveDeptPath($deptId, $deptIndex);
        }

        return [$adminToDeptId, $deptNameMap, $deptPathMap];
    }

    /**
     * 从根节点到当前部门的完整链路（用 / 分隔）。
     *
     * @param array<int, array{pid: int, name: string}> $deptIndex
     */
    private static function resolveDeptPath(int $deptId, array $deptIndex): string
    {
        $names = [];
        $guard = 0;
        $cursor = $deptId;
        while ($cursor > 0 && isset($deptIndex[$cursor]) && $guard++ < 32) {
            $node = $deptIndex[$cursor];
            $name = trim($node['name']);
            if ($name !== '') {
                array_unshift($names, $name);
            }
            $cursor = $node['pid'];
        }

        return implode(' / ', $names);
    }

    /**
     * @param array<int, array<string, mixed>> $rows
     * @return array<int, array<string, mixed>>
     */
    protected static function attachDeptInfoToRows(array $rows): array
    {
        if ($rows === []) {
            return $rows;
        }
        $creatorIds = array_map(static fn (array $row): int => (int) ($row['creator_id'] ?? 0), $rows);
        [$adminToDeptId, $deptNameMap, $deptPathMap] = self::loadAdminDeptMap($creatorIds);
        foreach ($rows as &$row) {
            $creatorId = (int) ($row['creator_id'] ?? 0);
            $deptId = $adminToDeptId[$creatorId] ?? 0;
            $row['dept_id'] = $deptId;
            $row['dept_name'] = $deptId > 0 ? (string) ($deptNameMap[$deptId] ?? '') : '';
            $row['dept_path'] = $deptId > 0 ? (string) ($deptPathMap[$deptId] ?? '') : '';
        }
        unset($row);

        return $rows;
    }

    /**
     * 根据 dept_id（包含其子部门）收窄可见 admin id 集合。
     * 与 visibleAdminIds 取交集。
     *
     * @param array<int>|null $visibleAdminIds null 表示不限
     * @return array<int>|null 返回 null 表示外部条件无需附加；返回 [] 表示无可见 admin
     */
    protected static function intersectVisibleByDept(?array $visibleAdminIds, int $deptId): ?array
    {
        if ($deptId <= 0) {
            return $visibleAdminIds;
        }
        $deptIds = DeptLogic::getSelfAndDescendantIds($deptId);
        if ($deptIds === []) {
            $deptIds = [$deptId];
        }
        $adminIds = AdminDept::whereIn('dept_id', $deptIds)->column('admin_id');
        $adminIds = array_values(array_unique(array_filter(array_map('intval', $adminIds), static fn (int $v): bool => $v > 0)));

        if ($visibleAdminIds === null) {
            return $adminIds;
        }

        return array_values(array_intersect($visibleAdminIds, $adminIds));
    }

    protected static function normalizeMediaSource(string $mediaSource): string
    {
        return trim($mediaSource);
    }

    /**
     * 与 project.self_input_stats_view_all_roles 一致：超管或白名单角色可见全部录入人数据。
     */
    protected static function canViewAllSelfInputStats(array $adminInfo): bool
    {
        if ((int) ($adminInfo['root'] ?? 0) === 1) {
            return true;
        }
        $allow = Config::get('project.self_input_stats_view_all_roles', []);
        $allow = array_map('intval', is_array($allow) ? $allow : []);
        if ($allow === []) {
            return false;
        }
        $myRoles = array_map('intval', $adminInfo['role_id'] ?? []);

        return count(array_intersect($myRoles, $allow)) > 0;
    }

    /**
     * @return array<int>|null null=全部录入人；[]=无可见；int[]=可见 creator_id 集合
     */
    protected static function getVisibleCreatorIds(int $adminId, array $adminInfo): ?array
    {
        if (self::canViewAllSelfInputStats($adminInfo)) {
            return null;
        }

        return DataScopeService::getVisibleAdminIds($adminId, $adminInfo);
    }

    protected static function assertRecordVisible(int $adminId, array $adminInfo, int $creatorId): bool
    {
        $visibleIds = self::getVisibleCreatorIds($adminId, $adminInfo);
        if ($visibleIds === null) {
            return true;
        }

        return in_array($creatorId, $visibleIds, true);
    }

    /**
     * 同一录入人 + 同一天 + 同一渠道唯一（不同录入人可同日同渠道各录一条）。
     */
    protected static function isYejiDuplicate(int $creatorId, string $yejiDate, string $mediaSource, int $excludeId = 0): bool
    {
        $query = PersonalYeji::where('creator_id', $creatorId)
            ->where('yeji_date', $yejiDate)
            ->where('media_source', $mediaSource);
        if ($excludeId > 0) {
            $query->where('id', '<>', $excludeId);
        }

        return $query->count() > 0;
    }

    /**
     * 同一录入人 + 同一天 + 同一渠道唯一（不同录入人可同日同渠道各录一条）。
     */
    protected static function isCostDuplicate(int $creatorId, string $costDate, string $mediaSource, int $excludeId = 0): bool
    {
        $query = PersonalAccountCost::where('creator_id', $creatorId)
            ->where('cost_date', $costDate)
            ->where('media_source', $mediaSource);
        if ($excludeId > 0) {
            $query->where('id', '<>', $excludeId);
        }

        return $query->count() > 0;
    }
}