<?php

namespace Modules\AssetExchange\Services;

use Illuminate\Support\Facades\Schema;
use Modules\AssetExchange\Models\Appraisal;
use Modules\AssetExchange\Models\AppraisalLine;
use Modules\AssetExchange\Models\Listing;

class AssetExchangeIeBridgeService
{
    public function importBomToAppraisalLines(Appraisal $appraisal, ?int $bomId = null, bool $replaceExisting = false): int
    {
        if (! class_exists(\Modules\IndustrialEngineering\Models\Bom::class)) {
            throw new \RuntimeException('ماژول مهندسی صنعتی نصب نیست.');
        }

        if (! Schema::hasTable('ie_boms') || ! Schema::hasTable('aex_appraisal_lines')) {
            throw new \RuntimeException('جداول BOM یا خطوط کارشناسی موجود نیست.');
        }

        $appraisal->loadMissing('listing');
        $listing = $appraisal->listing;
        $resolvedBomId = $bomId ?: $listing?->ie_bom_id;

        if (! $resolvedBomId) {
            throw new \RuntimeException('شناسه BOM برای واردسازی مشخص نشده است.');
        }

        $bom = \Modules\IndustrialEngineering\Models\Bom::where('business_id', $appraisal->business_id)
            ->with(['lines.itemMaster'])
            ->find($resolvedBomId);

        if (! $bom) {
            throw new \RuntimeException('BOM مورد نظر یافت نشد.');
        }

        $bomService = app(\Modules\IndustrialEngineering\Services\BomService::class);
        $costingService = class_exists(\Modules\IndustrialEngineering\Services\LiveBomCostingService::class)
            ? app(\Modules\IndustrialEngineering\Services\LiveBomCostingService::class)
            : null;

        $liveCosts = [];
        if ($costingService) {
            $analysis = $costingService->analyze($bom, 1.0);
            foreach ($analysis['lines'] ?? [] as $row) {
                $liveCosts[$row['bom_line_id']] = (int) round($row['live_extended'] ?? $row['standard_extended'] ?? 0);
            }
        }

        $flat = $bomService->explode($bom, 1.0);
        $lineMap = [];
        $sort = 0;
        $created = 0;

        if ($replaceExisting) {
            AppraisalLine::where('appraisal_id', $appraisal->id)->delete();
        }

        foreach ($flat as $row) {
            $parentLineId = isset($row['parent_line_id'], $lineMap[$row['parent_line_id']])
                ? $lineMap[$row['parent_line_id']]
                : null;

            $replacementCost = $liveCosts[$row['bom_line_id']]
                ?? (int) round($row['extended_cost'] ?? 0);

            $line = AppraisalLine::create([
                'business_id' => $appraisal->business_id,
                'appraisal_id' => $appraisal->id,
                'parent_line_id' => $parentLineId,
                'line_kind' => 'part',
                'name' => $row['item_name'] ?? ('قطعه #'.$row['bom_line_id']),
                'ie_item_master_id' => $row['item_master_id'] ?? null,
                'ie_bom_line_id' => $row['bom_line_id'],
                'replacement_cost' => $replacementCost,
                'health_percentage' => 100,
                'renovation_need' => 'none',
                'keep_in_line' => true,
                'sort_order' => $sort++,
            ]);

            $lineMap[$row['bom_line_id']] = $line->id;
            $created++;
        }

        if ($listing && ! $listing->ie_bom_id) {
            $listing->update(['ie_bom_id' => $bom->id]);
        }

        return $created;
    }

    public function resolveBomForListing(Listing $listing): ?object
    {
        if (! class_exists(\Modules\IndustrialEngineering\Models\Bom::class)) {
            return null;
        }

        if ($listing->ie_bom_id) {
            return \Modules\IndustrialEngineering\Models\Bom::find($listing->ie_bom_id);
        }

        if ($listing->ie_line_revision_id && Schema::hasTable('ie_boms')) {
            return \Modules\IndustrialEngineering\Models\Bom::where('business_id', $listing->business_id)
                ->where('line_revision_id', $listing->ie_line_revision_id)
                ->where('status', 'released')
                ->orderByDesc('id')
                ->first();
        }

        return null;
    }
}