<?php

namespace App\Admin\Services\Plan;

use App\Admin\Filters\PlanFilter;
use App\Admin\Filters\StoreFilter;
use App\Admin\Services\BaseService;
use App\Enums\PlanStatus;
use App\Enums\TaskStatus;
use App\Models\Keyword;
use App\Models\Ledger;
use App\Models\Plan;
use App\Models\PlanHygiene;
use App\Models\PlanPerformance;
use App\Models\Store;
use App\Models\Task;
use App\Models\TaskHygiene;
use App\Models\TaskPerformance;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Relations\MorphTo;
use Illuminate\Database\Eloquent\Relations\Relation;
use Illuminate\Support\Carbon;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Validator;
use Illuminate\Validation\Rule;

/**
 * @method Plan getModel()
 * @method Plan|Builder query()
 */
class PlanService extends BaseService
{
    protected string $modelName = Plan::class;

    protected string $modelFilterName = PlanFilter::class;

    public function store($data): bool
    {
        Validator::validate(
            data: $data,
            rules: [
                'name' => ['bail', 'required', 'max:255'],
                'planable_type' => [
                    'bail',
                    'required',
                    Rule::in([
                        (new PlanHygiene())->getMorphClass(),
                        (new PlanPerformance())->getMorphClass(),
                    ]),
                ],
            ],
            attributes: [
                'name' => __('plan.plan.name'),
                'planable_type' => __('plan.plan.type'),
            ],
        );

        switch (Relation::getMorphedModel($data['planable_type'])) {
            // 清洁卫生
            case PlanHygiene::class:
                $payload = $data['plan_hygiene'] ?? [];

                Validator::validate(
                    data: $payload,
                    rules: [
                        'month' => ['bail', 'required', 'date_format:Y-m'],
                    ],
                    attributes: [
                        'month' => __('plan.plan_hygiene.month'),
                    ],
                );

                $planable = PlanHygiene::create($payload);

                $planable->plan()->create([
                    'name' => $data['name'],
                    'plan_status' => PlanStatus::Pending,
                ]);

                break;

                // 业绩指标
            case PlanPerformance::class:
                $payload = $data['plan_performance'] ?? [];

                Validator::validate(
                    data: $payload,
                    rules: [
                        'month' => ['bail', 'required', 'date_format:Y-m'],
                        'store_category_id' => ['bail', 'required', Rule::exists(Keyword::class, 'key')],
                        'store_level_id' => ['bail', 'nullable', Rule::exists(Keyword::class, 'key')],
                        'performance' => ['bail', 'required', 'numeric', 'min:0'],
                    ],
                    attributes: [
                        'month' => __('plan.plan_performance.month'),
                        'store_category_id' => __('plan.plan_performance.store_category_id'),
                        'store_level_id' => __('plan.plan_performance.store_level_id'),
                        'performance' => __('plan.plan_performance.performance'),
                    ],
                );

                $planable = PlanPerformance::create($payload);

                $planable->plan()->create([
                    'name' => $data['name'],
                    'plan_status' => PlanStatus::Pending,
                ]);

                break;
        }

        return true;
    }

    public function update($primaryKey, $data): bool
    {
        /** @var \App\Models\Plan|null */
        $plan = Plan::findOrFail($primaryKey);

        if ($plan->isPublished()) {
            admin_abort('任务计划已发布');
        }

        $planableType = Relation::getMorphedModel($plan->planable_type);

        $rules = array_merge(
            ['name' => ['filled', 'max:255']],
            match ($planableType) {
                PlanHygiene::class => [
                    'plan_hygiene.month' => ['bail', 'required', 'date_format:Y-m'],
                ],

                PlanPerformance::class => [
                    'plan_performance.month' => ['bail', 'required', 'date_format:Y-m'],
                    'plan_performance.store_category_id' => ['bail', 'required', Rule::exists(Keyword::class, 'key')],
                    'plan_performance.store_level_id' => ['bail', 'nullable', Rule::exists(Keyword::class, 'key')],
                    'plan_performance.performance' => ['bail', 'required', 'numeric', 'min:0'],
                ],
            },
        );

        Validator::validate(
            data: $data,
            rules: $rules,
            attributes: [
                'name' => __('plan.plan.name'),
                'plan_performance.month' => __('plan.plan_performance.month'),
                'plan_performance.store_category_id' => __('plan.plan_performance.store_category_id'),
                'plan_performance.store_level_id' => __('plan.plan_performance.store_level_id'),
                'plan_performance.performance' => __('plan.plan_performance.performance'),
                'plan_hygiene.month' => __('plan.plan_hygiene.month'),
            ],
        );

        if (array_key_exists('name', $data)) {
            $plan->name = $data['name'];
        }
        $plan->save();

        switch ($planableType) {
            case PlanPerformance::class:
                $plan->planable->update($data['plan_performance']);
                break;

            case PlanHygiene::class:
                $plan->planable->update($data['plan_hygiene']);
                break;
        }

        return true;
    }

    public function publish($id)
    {
        /** @var \App\Models\Plan */
        $plan = Plan::findOrFail($id);

        if ($plan->isPublished()) {
            admin_abort('任务计划已发布');
        }

        switch (Relation::getMorphedModel($plan->planable_type)) {
            // 清洁卫生
            case PlanHygiene::class:
                // 任务开始时间
                $startAt = Carbon::createFromFormat('Y-m-d H:i:s', "{$plan->planable->month}-01 00:00:00");
                // 任务结束时间
                $endAt = $startAt->copy()->endOfMonth();

                /** @var \Illuminate\Database\Eloquent\Collection */
                $stores = Store::findMany($plan->planable->store_ids);

                foreach ($stores as $store) {
                    $taskable = TaskHygiene::create([
                        'month' => $plan->planable->month,
                        'store_id' => $store->id,
                        'store_master_id' => $store->master_id,
                    ]);
                    $taskable->task()->create([
                        'plan_id' => $plan->id,
                        'name' => '清洁任务',
                        'start_at' => $startAt,
                        'end_at' => $endAt,
                        'task_status' => TaskStatus::Pending,
                    ]);
                }
                break;

                // 业绩指标
            case PlanPerformance::class:
                // 任务开始时间
                $startAt = Carbon::createFromFormat('Y-m-d H:i:s', "{$plan->planable->month}-01 00:00:00");
                // 任务结束时间
                $endAt = $startAt->copy()->endOfMonth();

                // 门店分类IDs
                $categoryIds = value(function ($id) {
                    $ids = collect();
                    if ($parent = Keyword::where('key', $id)->first()) {
                        /** @var \Illuminate\Support\Collection */
                        $ids = Keyword::where('path', 'like', "%-{$parent->id}-%")->pluck('key');
                    }

                    return $ids->push($id);
                }, $plan->planable->store_category_id);

                // 门店业绩统计
                $aggregates = Ledger::select(['store_id', DB::raw('SUM(`sales`) as sales')])
                    ->whereBetween('date', [$startAt->format('Y-m-d'), $endAt->format('Y-m-d')])
                    ->groupBy('store_id')
                    ->pluck('sales', 'store_id')
                    ->toArray();

                /** @var \Illuminate\Database\Eloquent\Collection */
                $stores = Store::filter(['level_id' => $plan->planable->store_level_id], StoreFilter::class)
                    ->whereIn('category_id', $categoryIds)
                    ->get(['id', 'master_id']);

                foreach ($stores as $store) {
                    $taskable = TaskPerformance::create([
                        'month' => $plan->planable->month,
                        'store_id' => $store->id,
                        'store_master_id' => $store->master_id,
                        'expected_performance' => $plan->planable->performance,
                        'actual_performance' => $aggregates[$store->id] ?? 0,
                    ]);

                    $task = new Task([
                        'plan_id' => $plan->id,
                        'name' => '业绩指标',
                        'start_at' => $startAt,
                        'end_at' => $endAt,
                        'task_status' => TaskStatus::Pending,
                    ]);

                    if ($taskable->isSuccess()) {
                        $task->task_status = TaskStatus::Success;
                        $task->completed_at = now();
                    }

                    $taskable->task()->save($task);
                }
                break;

            default:
                admin_abort('未知计划类型');
                break;
        }

        $plan->update([
            'plan_status' => PlanStatus::Published,
        ]);
    }

    public function getDetail($id)
    {
        if ($plan = parent::getDetail($id)) {
            if ($plan->planable instanceof PlanHygiene) {
                $plan->planable->setAttribute(
                    'stores', Store::findMany($plan->planable->store_ids)
                );
            }
        }

        return $plan;
    }

    public function preDelete(array $ids): void
    {
        /** @var \Illuminate\Database\Eloquent\Collection */
        $plans = Plan::findMany($ids);

        if ($plans->contains(fn (Plan $plan) => $plan->isPublished())) {
            admin_abort('不能删除已发布的任务计划');
        }

        $plans->each(fn (Plan $plan) => $plan->planable()->delete());
    }

    public function addRelations($query, string $scene = 'list')
    {
        if (in_array($scene, ['edit', 'detail'])) {
            $query->with([
                'planable' => function (MorphTo $morphTo) {
                    $morphTo->morphWith([
                        PlanPerformance::class => ['storeCategory', 'storeLevel'],
                    ]);
                },
            ]);
        }
    }
}