<?php

namespace App\Http\Controllers;

use App\Services\InvestmentGeography;
use App\Services\InvestorContext;
use App\Services\InvestorContextInstallation;
use App\Services\InvestorPath;
use Illuminate\Http\Request;
use Inertia\Inertia;

final class InvestorContextController extends Controller
{
    private function entryComplements(Request $request): array
    {
        $data = $request->validate(['complement_origin' => 'nullable|string|max:100', 'complement_code' => 'required_with:complement_origin|string|max:40',
            'complement_target' => 'nullable|string|max:100', 'complement_territory' => 'nullable|uuid']);
        if (empty($data['complement_origin'])) return [];
        return app(\App\Services\InvestmentComplements::class)->resolve([['origin' => $data['complement_origin'], 'code' => $data['complement_code'],
            'target' => $data['complement_target'] ?? null, 'territory_id' => $data['complement_territory'] ?? null]]);
    }

    private function entryChoices(Request $r, InvestorContext $context): array
    {
        $data = $r->validate(['source' => 'nullable|string|max:100', 'from_dossier' => 'nullable|uuid', 'opportunities' => 'sometimes|array|max:100', 'opportunities.*' => 'integer|distinct|min:1',
            'province_id' => 'nullable|uuid', 'district_id' => 'nullable|uuid', 'admin_post_id' => 'nullable|uuid', 'locality_id' => 'nullable|uuid']);
        $source = !empty($data['source']) ? $context->reference($data['source']) : null;
        $ids = $data['opportunities'] ?? (($source['kind'] ?? '') === 'opportunity' ? [$source['id']] : []);
        abort_if(!empty($data['from_dossier']) && !$ids, 422, 'Escolha a oportunidade associada à ficha da carteira.');
        $path = app(InvestmentGeography::class)->selection($data);
        $input = array_map(fn($id) => ['source' => 'opportunity:'.$id, ...($path ? ['territory' => 'territory:'.$path[array_key_last($path)]->id] : [])], $ids);
        if (!empty($data['from_dossier'])) $input[0]['portfolio_origins'] = [$data['from_dossier']];
        foreach ($this->entryComplements($r) as $complement) {
            $keys = array_filter([$complement['origin']['key'], $complement['target']['key'] ?? null], fn($key) => str_starts_with($key, 'opportunity:'));
            foreach ($keys as $key) {
                if (in_array($key, array_column($input, 'source'), true)) continue;
                $input[] = ['source' => $key, ...($complement['territory_id'] ? ['territory' => 'territory:'.$complement['territory_id']] : []),
                    ...(str_starts_with($complement['origin']['key'], 'portfolio:') ? ['portfolio_origins' => [substr($complement['origin']['key'], 10)]] : [])];
            }
        }
        return app(\App\Services\InvestmentOpportunityChoices::class)->resolve($input, [], true);
    }

    public function current(Request $r, InvestorContext $context)
    {
        return response()->json($context->current($r->user()));
    }

    public function focus(Request $r, InvestorContext $context)
    {
        return response()->json($context->focus($r->user(), $r->all()));
    }

    public function show(Request $r, string $id, InvestorContext $context)
    {
        $data = $r->validate(['opportunity' => 'nullable|string|max:100']);
        return response()->json($context->view($r->user(), $id, $data['opportunity'] ?? null));
    }

    public function options(Request $r, InvestorContext $context)
    {
        $d = $r->validate(['q' => 'nullable|string|max:120']);

        return response()->json($context->options($d['q'] ?? ''));
    }

    public function corridorOptions(Request $r)
    {
        $data = $r->validate(['corridor' => ['nullable', \Illuminate\Validation\Rule::in(array_keys(config('investment_corridors')))], 'territory' => 'nullable|uuid']);
        $service = app(\App\Services\InvestmentCorridorContext::class);
        return response()->json(['corridors' => collect(config('investment_corridors'))->map(fn($entry,$key)=>['key'=>$key,'name'=>$entry['name'],'provinces'=>$service->provinces($key)])->values(),
            'parks' => $service->parks($data['corridor'] ?? null, $data['territory'] ?? null)]);
    }

    public function saveDraft(Request $r, string $id, InvestorContext $context)
    {
        return response()->json($context->saveDraft($r->user(), $id, $r->all()));
    }

    public function edit(Request $r, string $id, InvestorContext $context)
    {
        $data = $context->view($r->user(), $id);
        abort_unless($data['can_write'], 403);

        $entries = $this->entryChoices($r, $context);
        $choices = $entries ?: null;
        $source = $r->query('source') ? $context->reference($r->validate(['source' => 'required|string|max:100'])['source']) : null;
        if ($choices === null && ($source['kind'] ?? '') === 'opportunity') $choices = app(\App\Services\InvestmentOpportunityChoices::class)->resolve([['source' => $source['key']]]);
        $explicitChoices=$choices;
        $selectionKey=$r->validate(['selection_key'=>'nullable|uuid'])['selection_key']??null;
        $entryKey=fn($c)=>$c['opportunity']['key'].($selectionKey?'@'.$selectionKey:'');
        $entrySources=array_map($entryKey,$explicitChoices??[]);
        if ($choices !== null) $choices = app(\App\Services\InvestmentOpportunityChoices::class)->mergeEntries($data['context']['opportunity_choices'] ?? [], $choices);
        $draft = $context->draft($r->user(), $id);
        if ($draft && isset($draft['opportunity_choices'])) {
            $recovered = app(\App\Services\InvestmentOpportunityChoices::class)->resolve($draft['opportunity_choices'], $data['context']['opportunity_choices'] ?? [], true);
            $new=array_filter($explicitChoices??[],fn($c)=>!in_array($entryKey($c),$draft['entry_sources']??[],true));
            $choices = app(\App\Services\InvestmentOpportunityChoices::class)->mergeEntries($recovered, array_values($new));
        }
        $differences = [];
        foreach ($explicitChoices ?? [] as $entry) {
            $kept = collect($choices ?? [])->firstWhere('opportunity.key', $entry['opportunity']['key']);
            if ($kept && ($kept['territory']['key'] ?? null) !== ($entry['territory']['key'] ?? null)) $differences[] = ['title'=>$entry['opportunity']['title'],'saved'=>$kept['territory']['title']??'Por definir','requested'=>$entry['territory']['title']??'Por definir'];
        }
        $complements = isset($draft['complements']) ? app(\App\Services\InvestmentComplements::class)->resolve($draft['complements'], $data['context']['complements'] ?? []) : ($data['context']['complements'] ?? []);
        $entryTerritory = null;
        if (($source['kind'] ?? null) === 'portfolio') {
            $path = app(InvestmentGeography::class)->selection($r->validate(['province_id' => 'nullable|uuid', 'district_id' => 'nullable|uuid', 'admin_post_id' => 'nullable|uuid', 'locality_id' => 'nullable|uuid']));
            if ($path) $entryTerritory = $context->reference('territory:'.$path[array_key_last($path)]->id);
        }
        foreach ($this->entryComplements($r) as $entry) {
            $tag = 'complement:'.hash('sha256', $entry['key'].'@'.($selectionKey ?? ''));
            $entrySources[] = $tag;
            if (!in_array($tag, $draft['entry_sources'] ?? [], true)) $complements = collect([...$complements, $entry])->unique('key')->values()->all();
        }
        return Inertia::render('investor-path/context', ['entryTerritory' => $entryTerritory, 'entryComplements' => $complements, 'entryLocationDifferences'=>$differences,'entrySources'=>$entrySources,'draft' => $draft, 'requestedChoices' => $choices, 'initial' => $data, 'options' => $context->options(), 'source' => $source, 'territorySelection' => isset($data['context']['selection']['territory']) ? app(InvestmentGeography::class)->path($data['context']['selection']['territory']['id']) : ($entryTerritory ? app(InvestmentGeography::class)->path($entryTerritory['id']) : [])]);
    }

    public function preview(Request $r, string $id, InvestorContext $context)
    {
        return response()->json($context->preview($r->user(), $id, $r->all()));
    }

    public function commit(Request $r, string $id, InvestorContext $context)
    {
        return response()->json($context->commit($r->user(), $id, $r->all()));
    }

    public function start(Request $r, InvestorPath $path, InvestorContext $context)
    {
        $d = $r->validate(['source' => 'nullable|string|max:100', 'step' => ['nullable', 'regex:/^S(0[1-9]|1[0-9])$/']]);
        $ref = isset($d['source']) ? $context->reference($d['source']) : null;
        $submissionId = $r->validate(['submission' => 'nullable|uuid'])['submission'] ?? null;
        $entrySubmission = null;
        if ($submissionId) {
            $submission = \App\Models\InvestmentSubmission::where('id', $submissionId)->where('user_id', $r->user()->id)->where('status', 'draft')->firstOrFail();
            abort_unless(($ref['kind'] ?? null) === 'portfolio' && $submission->dossier_id === $ref['id'], 422, 'Conserve a ficha de origem da manifestação.');
            $entrySubmission = ['id' => $submission->id, 'version' => $submission->version];
        }

        $choices = $this->entryChoices($r, $context);
        return Inertia::render('investor-path/context-start', ['entrySubmission' => $entrySubmission, 'entryComplements' => $this->entryComplements($r), 'entryQuery' => $r->only(['complement_origin', 'complement_code', 'complement_target', 'complement_territory', 'from_dossier', 'province_id', 'district_id', 'admin_post_id', 'locality_id']), 'opportunityChoices' => $choices, 'contexts' => $path->contexts($r->user()), 'source' => $ref, 'step' => $d['step'] ?? null]);
    }

    public function installation(Request $r, InvestorContextInstallation $install)
    {
        $plan = $install->preview($r->user());

        return $r->expectsJson() ? response()->json($plan) : Inertia::render('investor-path/context-installation', ['plan' => $plan]);
    }

    public function install(Request $r, InvestorContextInstallation $install)
    {
        return response()->json($install->apply($r->user(),$r->all()));
    }
}