<?php

use App\Enums\Portal;
use App\Enums\RegistrationType;
use App\Models\Company;
use App\Models\User;
use App\Services\Admin\AdminPerformanceCache;
use Illuminate\Database\Eloquent\Collection;
use Illuminate\Support\Facades\DB;
use Illuminate\Validation\Rule;
use Livewire\Attributes\Layout;
use Livewire\Attributes\Title;
use Livewire\Volt\Component;
use Spatie\Permission\Models\Role;

new #[Layout('components.layouts.app'), Title('Benutzer anlegen')] class extends Component
{
    public string $name = '';

    public string $email = '';

    public string $portal = '';

    public string $registrationType = '';

    public string $language = 'de';

    public bool $isActive = true;

    public bool $isSuperAdmin = false;

    /** @var array<int, string> */
    public array $selectedRoles = [];

    /** @var array<int, int> */
    public array $linkedCompanyIds = [];

    /** @var array<int, string> */
    public array $companyRoles = [];

    public string $companyLookup = '';

    public ?int $selectedLookupCompanyId = null;

    /**
     * @var array{
     *   salutation_key:?string,
     *   title:?string,
     *   name:?string,
     *   address1:?string,
     *   address2:?string,
     *   postal_code:?string,
     *   city:?string,
     *   country_code:?string
     * }
     */
    public array $billing = [
        'salutation_key' => null,
        'title' => null,
        'name' => null,
        'address1' => null,
        'address2' => null,
        'postal_code' => null,
        'city' => null,
        'country_code' => null,
    ];

    public function mount(): void
    {
        $this->portal = Portal::Both->value;
        $this->registrationType = RegistrationType::ExistingLegacy->value;
    }

    public function updatedSelectedLookupCompanyId(): void
    {
        if ($this->selectedLookupCompanyId) {
            $this->addLinkedCompany();
        }
    }

    public function addLinkedCompany(): void
    {
        if (! $this->selectedLookupCompanyId) {
            return;
        }

        $this->linkedCompanyIds = array_map('intval', $this->linkedCompanyIds);

        if (! in_array($this->selectedLookupCompanyId, $this->linkedCompanyIds, true)) {
            $this->linkedCompanyIds[] = $this->selectedLookupCompanyId;
        }

        $this->companyRoles[$this->selectedLookupCompanyId] ??= 'member';
        $this->companyLookup = '';
        $this->selectedLookupCompanyId = null;
    }

    public function removeLinkedCompany(int $companyId): void
    {
        $this->linkedCompanyIds = array_values(array_filter(
            $this->linkedCompanyIds,
            fn (int|string $id): bool => (int) $id !== $companyId
        ));

        unset($this->companyRoles[$companyId]);
    }

    public function save(): void
    {
        $validated = $this->validate([
            'name' => ['required', 'string', 'max:255'],
            'email' => ['required', 'email', Rule::unique('users', 'email')],
            'portal' => ['required', Rule::in(array_map(static fn (Portal $portal): string => $portal->value, Portal::cases()))],
            'registrationType' => ['required', Rule::in(array_map(static fn (RegistrationType $type): string => $type->value, RegistrationType::cases()))],
            'language' => ['required', 'string', Rule::in(['de', 'en'])],
            'selectedRoles' => ['required', 'array', 'min:1'],
            'selectedRoles.*' => ['string', Rule::exists('roles', 'name')],
            'linkedCompanyIds' => ['array'],
            'linkedCompanyIds.*' => ['integer', Rule::exists('companies', 'id')],
            'companyRoles' => ['array'],
            'companyRoles.*' => ['string', Rule::in(['member', 'responsible', 'owner'])],
            'billing.salutation_key' => ['nullable', 'string', 'max:20'],
            'billing.title' => ['nullable', 'string', 'max:80'],
            'billing.name' => ['nullable', 'string', 'max:255'],
            'billing.address1' => ['nullable', 'string', 'max:255'],
            'billing.address2' => ['nullable', 'string', 'max:255'],
            'billing.postal_code' => ['nullable', 'string', 'max:20'],
            'billing.city' => ['nullable', 'string', 'max:120'],
            'billing.country_code' => ['nullable', 'string', 'size:2'],
        ]);

        $user = User::query()->create([
            'name' => $validated['name'],
            'email' => $validated['email'],
            'portal' => $validated['portal'],
            'registration_type' => $validated['registrationType'],
            'language' => $validated['language'],
            'is_active' => $this->isActive,
            'is_super_admin' => $this->isSuperAdmin,
            'password' => null,
        ]);

        $user->syncRoles($validated['selectedRoles']);

        $companySyncPayload = [];
        foreach ($validated['linkedCompanyIds'] as $companyId) {
            $companySyncPayload[$companyId] = [
                'role' => $validated['companyRoles'][$companyId] ?? 'member',
            ];
        }
        $user->companies()->sync($companySyncPayload);

        if ($this->billingIsComplete()) {
            $user->billingAddress()->create([
                'salutation_key' => $validated['billing']['salutation_key'] ?: null,
                'title' => $validated['billing']['title'] ?: null,
                'name' => (string) $validated['billing']['name'],
                'address1' => (string) $validated['billing']['address1'],
                'address2' => $validated['billing']['address2'] ?: null,
                'postal_code' => (string) $validated['billing']['postal_code'],
                'city' => (string) $validated['billing']['city'],
                'country_code' => strtoupper((string) $validated['billing']['country_code']),
            ]);
        }

        session()->flash('success', __('Benutzer wurde angelegt und verknuepft.'));
        $this->redirect(route('admin.users.edit', $user->id), navigate: true);
    }

    public function with(): array
    {
        $companyLookupResults = collect();
        $companyLookupTerm = trim($this->companyLookup);

        if (mb_strlen($companyLookupTerm) >= 1) {
            $companyLookupResults = Company::withoutGlobalScopes()
                ->whereNotIn('id', $this->linkedCompanyIds ?: [-1])
                ->where(function ($query) use ($companyLookupTerm): void {
                    if ($this->supportsFullTextSearch($companyLookupTerm)) {
                        $query->whereFullText(['name', 'email', 'slug'], $companyLookupTerm);

                        return;
                    }

                    $query
                        ->where('name', 'like', '%'.$companyLookupTerm.'%')
                        ->orWhere('slug', 'like', '%'.$companyLookupTerm.'%')
                        ->orWhere('email', 'like', '%'.$companyLookupTerm.'%');
                })
                ->orderBy('name')
                ->limit(50)
                ->get(['id', 'name', 'slug', 'email']);
        }

        return [
            'availableRoles' => $this->availableRoles(),
            'linkedCompanies' => Company::withoutGlobalScopes()
                ->whereIn('id', $this->linkedCompanyIds ?: [-1])
                ->orderBy('name')
                ->get(['id', 'name', 'slug', 'email']),
            'companyLookupResults' => $companyLookupResults,
            'salutations' => config('salutations.items', []),
            'countries' => config('countries.items', []),
            'portalOptions' => Portal::cases(),
            'registrationTypeOptions' => RegistrationType::cases(),
        ];
    }

    private function availableRoles(): Collection
    {
        return app(AdminPerformanceCache::class)->remember(AdminPerformanceCache::RoleOptions, AdminPerformanceCache::OptionsTtl, fn () => Role::query()
            ->orderBy('name')
            ->get(['id', 'name']));
    }

    private function supportsFullTextSearch(string $term): bool
    {
        return mb_strlen($term) >= 3
            && in_array(DB::connection()->getDriverName(), ['mysql', 'pgsql'], true);
    }

    protected function billingIsComplete(): bool
    {
        return filled($this->billing['name'])
            && filled($this->billing['address1'])
            && filled($this->billing['postal_code'])
            && filled($this->billing['city'])
            && filled($this->billing['country_code']);
    }
}; ?>

<form wire:submit="save" class="space-y-8">
    {{-- ============== PAGE HEADER ============== --}}
    <header class="grid items-end gap-8" style="grid-template-columns:1fr auto;">
        <div class="min-w-0">
            <div class="flex items-center gap-3 mb-3 flex-nowrap whitespace-nowrap">
                <span class="badge hub dot">{{ __('Admin Backend') }}</span>
                <span class="eyebrow muted">{{ __('Administration · Benutzer · Neu') }}</span>
            </div>
            <h1 class="text-[30px] font-bold tracking-[-0.6px] leading-[1.15] m-0 text-[color:var(--color-ink)]">
                {{ __('Benutzer anlegen') }}
            </h1>
            <p class="text-[13px] leading-[1.55] mt-2 m-0 max-w-[640px] text-[color:var(--color-ink-2)]">
                {{ __('Rollen, Firmen und optional Rechnungsadresse direkt mitsetzen.') }}
            </p>
        </div>

        <div class="flex items-center gap-2 flex-shrink-0">
            <flux:button variant="filled" icon="arrow-left" href="{{ route('admin.users.index') }}" wire:navigate>
                {{ __('Zurück') }}
            </flux:button>
        </div>
    </header>

    <article class="panel">
        <div class="panel-head">
            <span class="section-eyebrow">{{ __('Basisdaten') }}</span>
        </div>
        <div class="p-5">

        <div class="grid gap-4 sm:grid-cols-2">
            <flux:field>
                <flux:label>{{ __('Name') }}</flux:label>
                <flux:input wire:model="name" />
                <flux:error name="name" />
            </flux:field>

            <flux:field>
                <flux:label>{{ __('E-Mail') }}</flux:label>
                <flux:input wire:model="email" type="email" />
                <flux:error name="email" />
            </flux:field>

            <flux:field>
                <flux:label>{{ __('Portal') }}</flux:label>
                <flux:select wire:model="portal">
                    @foreach($portalOptions as $portalOption)
                        <option value="{{ $portalOption->value }}">{{ $portalOption->label() }}</option>
                    @endforeach
                </flux:select>
                <flux:error name="portal" />
            </flux:field>

            <flux:field>
                <flux:label>{{ __('Registrierungstyp') }}</flux:label>
                <flux:select wire:model="registrationType">
                    @foreach($registrationTypeOptions as $registrationTypeOption)
                        <option value="{{ $registrationTypeOption->value }}">{{ $registrationTypeOption->label() }}</option>
                    @endforeach
                </flux:select>
                <flux:error name="registrationType" />
            </flux:field>
        </div>

        <div class="mt-4 flex flex-wrap gap-6">
            <flux:checkbox wire:model="isActive" label="{{ __('Aktiv') }}" />
            <flux:checkbox wire:model="isSuperAdmin" label="{{ __('Super Admin') }}" />
        </div>
        </div>
    </article>

    <article class="panel">
        <div class="panel-head">
            <span class="section-eyebrow">{{ __('Rollenzuweisung') }}</span>
        </div>
        <div class="p-5">
            <div class="grid gap-3 sm:grid-cols-2 lg:grid-cols-3">
                @foreach ($availableRoles as $role)
                    <flux:checkbox wire:model="selectedRoles" value="{{ $role->name }}" label="{{ $role->name }}" />
                @endforeach
            </div>
            <flux:error name="selectedRoles" class="mt-4" />
        </div>
    </article>

    <article class="panel">
        <div class="panel-head">
            <span class="section-eyebrow">{{ __('Firmenverknüpfung') }}</span>
        </div>
        <div class="p-5">

        <div class="mb-4">
            <flux:select
                wire:model.live="selectedLookupCompanyId"
                variant="combobox"
                :filter="false"
                placeholder="{{ __('Firma suchen und hinzufügen…') }}"
            >
                <x-slot name="input">
                    <flux:select.input
                        wire:model.live.debounce.300ms="companyLookup"
                        placeholder="{{ __('Name, Slug oder E-Mail…') }}"
                    />
                </x-slot>

                @foreach($companyLookupResults as $company)
                    <flux:select.option :value="$company->id" wire:key="create-company-{{ $company->id }}">
                        {{ $company->name }}@if($company->email)<span class="ml-1 text-zinc-400">· {{ $company->email }}</span>@endif
                    </flux:select.option>
                @endforeach

                <x-slot name="empty">
                    <flux:select.option.empty>
                        @if(blank(trim($companyLookup)))
                            {{ __('Mindestens 1 Zeichen eingeben…') }}
                        @else
                            {{ __('Keine Firma gefunden.') }}
                        @endif
                    </flux:select.option.empty>
                </x-slot>
            </flux:select>
        </div>

        <div class="space-y-3">
            @forelse ($linkedCompanies as $company)
                <div class="grid gap-3 rounded-[5px] border border-[color:var(--color-bg-rule)] bg-[color:var(--color-bg-elev)] p-3 sm:grid-cols-[1fr,160px,auto] sm:items-center">
                    <div>
                        <div class="text-[13px] font-semibold text-[color:var(--color-ink)]">{{ $company->name }}</div>
                        <div class="text-[11px] text-[color:var(--color-ink-3)] font-mono">{{ $company->slug }}</div>
                    </div>

                    <flux:select wire:model="companyRoles.{{ $company->id }}">
                        <option value="member">{{ __('Member') }}</option>
                        <option value="responsible">{{ __('Responsible') }}</option>
                        <option value="owner">{{ __('Owner') }}</option>
                    </flux:select>

                    <flux:button size="sm" variant="filled" icon="x-mark"
                        wire:click="removeLinkedCompany({{ $company->id }})">
                        {{ __('Entfernen') }}
                    </flux:button>
                </div>
            @empty
                <p class="text-[12.5px] text-[color:var(--color-ink-3)] m-0">{{ __('Noch keine Firma verknüpft.') }}</p>
            @endforelse
        </div>
        </div>
    </article>

    <article class="panel">
        <div class="panel-head">
            <span class="section-eyebrow">{{ __('Rechnungsadresse (optional)') }}</span>
        </div>
        <div class="p-5">

        <div class="grid gap-3 sm:grid-cols-2">
            <flux:field>
                <flux:label>{{ __('Anrede') }}</flux:label>
                <flux:select wire:model="billing.salutation_key">
                    <option value="">{{ __('Bitte wählen') }}</option>
                    @foreach($salutations as $key => $labels)
                        <option value="{{ $key }}">{{ $labels['de'] ?? $key }}</option>
                    @endforeach
                </flux:select>
            </flux:field>

            <flux:field>
                <flux:label>{{ __('Titel') }}</flux:label>
                <flux:input wire:model="billing.title" />
            </flux:field>

            <flux:field class="sm:col-span-2">
                <flux:label>{{ __('Rechnungsname') }}</flux:label>
                <flux:input wire:model="billing.name" />
            </flux:field>

            <flux:field class="sm:col-span-2">
                <flux:label>{{ __('Adresse Zeile 1') }}</flux:label>
                <flux:input wire:model="billing.address1" />
            </flux:field>

            <flux:field class="sm:col-span-2">
                <flux:label>{{ __('Adresse Zeile 2') }}</flux:label>
                <flux:input wire:model="billing.address2" />
            </flux:field>

            <flux:field>
                <flux:label>{{ __('PLZ') }}</flux:label>
                <flux:input wire:model="billing.postal_code" />
            </flux:field>

            <flux:field>
                <flux:label>{{ __('Stadt') }}</flux:label>
                <flux:input wire:model="billing.city" />
            </flux:field>

            <flux:field>
                <flux:label>{{ __('Land') }}</flux:label>
                <flux:select wire:model="billing.country_code">
                    <option value="">{{ __('Bitte wählen') }}</option>
                    @foreach ($countries as $countryCode => $countryName)
                        <option value="{{ $countryCode }}">{{ $countryName }}</option>
                    @endforeach
                </flux:select>
            </flux:field>
        </div>
        </div>
    </article>

    <article class="panel">
        <div class="p-5 flex justify-end gap-3">
            <flux:button variant="filled" href="{{ route('admin.users.index') }}" wire:navigate>
                {{ __('Abbrechen') }}
            </flux:button>
            <flux:button type="submit" variant="primary" icon="check">
                {{ __('Benutzer anlegen') }}
            </flux:button>
        </div>
    </article>
</form>