<?php

namespace Modules\EcommerceFinance\View;

use Illuminate\Http\Request;
use Illuminate\Support\Carbon;
use Modules\EcommerceFinance\Repositories\DingWorklogMirrorRepository;
use Modules\EcommerceFinance\Services\DingWorklogPenaltyCalculator;
use Throwable;

class DingWorklogStatisticsPageData
{
    public function __construct(
        private readonly DingWorklogMirrorRepository $repository,
        private readonly DingWorklogPenaltyCalculator $penaltyCalculator,
    ) {}

    public function page(Request $request): array
    {
        $latestStatisticsDate = now()->hour < 12
            ? now()->subDay()->startOfDay()
            : now()->startOfDay();
        $from = $this->date($request->query('from'))
            ?? $latestStatisticsDate->copy()->subDays(13);
        $to = $this->date($request->query('to')) ?? $latestStatisticsDate->copy();
        if ($from->greaterThan($to)) {
            [$from, $to] = [$to, $from];
        }
        if ($from->diffInDays($to) > 90) {
            $from = $to->copy()->subDays(90);
        }

        $state = $this->repository->available() ? $this->repository->state() : null;
        $errorCode = trim((string) ($state['last_error_code'] ?? ''));
        $syncState = match (true) {
            ! $this->repository->available() => 'unavailable',
            $errorCode !== '' => 'failed',
            $state === null => 'pending',
            ($state['status'] ?? '') === 'running' => 'syncing',
            ($state['status'] ?? '') === 'succeeded' => 'succeeded',
            default => 'pending',
        };
        $permissionRequired = DingWorklogMirrorRepository::isPermissionError($errorCode);

        $daily = [];
        $selectedDate = $this->date($request->query('date'))?->toDateString();
        $showDetails = $request->boolean('details');
        $submissions = [];
        $penalty = [
            'start_date' => null,
            'end_date' => null,
            'total_points' => '0',
            'total_points_formatted' => '0',
            'members' => [],
        ];
        $penaltyError = null;
        if ($this->repository->available()) {
            try {
                $daily = $this->repository->dailySummary($from->toDateString(), $to->toDateString());
                $selectedDate ??= $daily[0]['statistics_date'] ?? $latestStatisticsDate->toDateString();
                if ($showDetails) {
                    $submissions = array_map(static fn (object $row): array => [
                        'report_id' => (string) $row->report_id,
                        'template_name' => (string) ($row->template_name ?? ''),
                        'creator_userid' => (string) ($row->creator_userid ?? ''),
                        'creator_name' => (string) ($row->creator_name ?? ''),
                        'submitted_at' => (string) $row->submitted_at,
                        'statistics_date' => (string) $row->statistics_date,
                    ], $this->repository->submissionsForDate($selectedDate));
                }
            } catch (Throwable $exception) {
                report($exception);
                $syncState = 'failed';
                $errorCode = 'dingtalk_worklog_read_failed';
            }

            try {
                $penalty = $this->penaltyCalculator->summary(
                    $from->toDateString(),
                    $to->toDateString(),
                    now(),
                );
            } catch (Throwable $exception) {
                report($exception);
                $penaltyError = '日志漏写扣分暂时无法计算。';
            }
        }

        $currentDate = $latestStatisticsDate->toDateString();
        $current = collect($daily)->firstWhere('statistics_date', $currentDate) ?? [
            'statistics_date' => $currentDate,
            'submission_count' => 0,
            'submitter_count' => 0,
            'first_submitted_at' => null,
            'last_submitted_at' => null,
        ];

        return [
            'view' => 'business.pages.other.log-statistics',
            'worklogFilters' => [
                'from' => $from->toDateString(),
                'to' => $to->toDateString(),
                'date' => $selectedDate,
            ],
            'worklogState' => [
                'state' => $syncState,
                'error_code' => $errorCode ?: null,
                'permission_required' => $permissionRequired,
                'permission_apply_url' => $permissionRequired ? $this->repository->permissionApplyUrl() : null,
                'status' => $state['status'] ?? null,
                'last_attempted_at' => $state['last_attempted_at'] ?? null,
                'last_succeeded_at' => $state['last_succeeded_at'] ?? null,
                'mirror_row_count' => (int) ($state['mirror_row_count'] ?? 0),
            ],
            'worklogCurrent' => $current,
            'worklogDaily' => $daily,
            'worklogSubmissions' => $submissions,
            'worklogShowDetails' => $showDetails,
            'worklogPenalty' => $penalty,
            'worklogPenaltyError' => $penaltyError,
            'worklogDays' => (int) $from->diffInDays($to) + 1,
            'worklogTotalSubmissions' => array_sum(array_column($daily, 'submission_count')),
            'worklogTemplateName' => (string) config('dingtalk.worklog.display_name', '财务日报 / 日志'),
            'worklogCutoffAt' => $latestStatisticsDate->copy()->addDay()->setTime(12, 0)->toDateTimeString(),
        ];
    }

    private function date(mixed $value): ?Carbon
    {
        $value = trim((string) $value);
        if (preg_match('/^\d{4}-\d{2}-\d{2}$/', $value) !== 1) {
            return null;
        }

        try {
            return Carbon::createFromFormat('!Y-m-d', $value)->startOfDay();
        } catch (Throwable) {
            return null;
        }
    }
}