"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
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};
Object.defineProperty(exports, "__esModule", { value: true });
exports.RecipeAnalysisService = void 0;
const common_1 = require("@nestjs/common");
const prisma_service_1 = require("../prisma/prisma.service");
const units_1 = require("../common/utils/units");
let RecipeAnalysisService = class RecipeAnalysisService {
    constructor(prisma) {
        this.prisma = prisma;
    }
    async getAccessibleRecipe(id, userId) {
        const recipe = await this.prisma.recipe.findFirst({
            where: {
                id,
                OR: [
                    { isPublic: true },
                    { ownerId: userId },
                    { shares: { some: { userId } } },
                ],
            },
            include: {
                ingredients: {
                    include: {
                        product: true,
                    },
                    orderBy: { id: 'asc' },
                },
            },
        });
        if (!recipe) {
            throw new common_1.NotFoundException(`Recipe with id ${id} not found`);
        }
        return recipe;
    }
    calculateAvailableQuantity(inventoryItems, requiredUnit) {
        if (!requiredUnit) {
            return inventoryItems.reduce((sum, item) => sum + Number(item.quantity ?? 0), 0);
        }
        const normalizedRequiredUnit = requiredUnit.trim().toLowerCase();
        const sameUnit = inventoryItems
            .filter((item) => item.unit.trim().toLowerCase() === normalizedRequiredUnit)
            .reduce((sum, item) => sum + Number(item.quantity ?? 0), 0);
        const converted = inventoryItems
            .filter((item) => item.unit.trim().toLowerCase() !== normalizedRequiredUnit)
            .reduce((sum, item) => {
            if (!(0, units_1.canConvert)(item.unit, requiredUnit))
                return sum;
            try {
                return sum + (0, units_1.convertUnit)(Number(item.quantity ?? 0), item.unit, requiredUnit);
            }
            catch {
                return sum;
            }
        }, 0);
        return sameUnit + converted;
    }
    async analyzeRecipeIngredients(id, userId) {
        const recipe = await this.getAccessibleRecipe(id, userId);
        const pantryItems = await this.prisma.pantryItem.findMany({
            where: { userId },
            select: { productId: true },
        });
        const pantryProductIds = new Set(pantryItems.map((p) => p.productId));
        const ingredients = await Promise.all(recipe.ingredients.map(async (ingredient) => {
            const requiredQuantity = Number(ingredient.quantity ?? 0);
            const requiredUnit = (ingredient.unit ?? '').trim();
            const rawName = (ingredient.rawName ?? '').trim() || 'Okänd ingrediens';
            if (!ingredient.productId || !ingredient.product) {
                return {
                    ingredientId: ingredient.id,
                    rawName,
                    quantity: requiredQuantity,
                    unit: requiredUnit,
                    note: ingredient.note ?? null,
                    status: 'missing',
                    matchedProductId: null,
                    matchedProductName: null,
                    source: null,
                    availableQuantity: 0,
                    missingQuantity: requiredQuantity,
                };
            }
            if (pantryProductIds.has(ingredient.productId)) {
                return {
                    ingredientId: ingredient.id,
                    rawName,
                    quantity: requiredQuantity,
                    unit: requiredUnit,
                    note: ingredient.note ?? null,
                    status: 'covered_by_pantry',
                    matchedProductId: ingredient.productId,
                    matchedProductName: ingredient.product.canonicalName || ingredient.product.name,
                    source: 'pantry',
                    availableQuantity: requiredQuantity,
                    missingQuantity: 0,
                };
            }
            const inventoryItems = await this.prisma.inventoryItem.findMany({
                where: { productId: ingredient.productId },
                select: { quantity: true, unit: true },
            });
            const availableQuantity = this.calculateAvailableQuantity(inventoryItems, requiredUnit);
            if (availableQuantity >= requiredQuantity) {
                return {
                    ingredientId: ingredient.id,
                    rawName,
                    quantity: requiredQuantity,
                    unit: requiredUnit,
                    note: ingredient.note ?? null,
                    status: 'exact_match',
                    matchedProductId: ingredient.productId,
                    matchedProductName: ingredient.product.canonicalName || ingredient.product.name,
                    source: 'inventory',
                    availableQuantity,
                    missingQuantity: 0,
                };
            }
            const alternativeProductIds = Array.isArray(ingredient.alternativeProductIds)
                ? ingredient.alternativeProductIds.filter((id) => typeof id === 'number')
                : [];
            for (const altProductId of alternativeProductIds) {
                if (pantryProductIds.has(altProductId)) {
                    const altProduct = await this.prisma.product.findUnique({
                        where: { id: altProductId },
                        select: { id: true, name: true, canonicalName: true },
                    });
                    return {
                        ingredientId: ingredient.id,
                        rawName,
                        quantity: requiredQuantity,
                        unit: requiredUnit,
                        note: ingredient.note ?? null,
                        status: 'substitutable',
                        matchedProductId: altProduct?.id ?? altProductId,
                        matchedProductName: altProduct?.canonicalName || altProduct?.name || null,
                        source: 'pantry_substitute',
                        availableQuantity: requiredQuantity,
                        missingQuantity: 0,
                    };
                }
                const altInventoryItems = await this.prisma.inventoryItem.findMany({
                    where: { productId: altProductId },
                    select: { quantity: true, unit: true },
                });
                const altAvailable = this.calculateAvailableQuantity(altInventoryItems, requiredUnit);
                if (altAvailable > 0) {
                    const altProduct = await this.prisma.product.findUnique({
                        where: { id: altProductId },
                        select: { id: true, name: true, canonicalName: true },
                    });
                    return {
                        ingredientId: ingredient.id,
                        rawName,
                        quantity: requiredQuantity,
                        unit: requiredUnit,
                        note: ingredient.note ?? null,
                        status: 'substitutable',
                        matchedProductId: altProduct?.id ?? altProductId,
                        matchedProductName: altProduct?.canonicalName || altProduct?.name || null,
                        source: 'inventory_substitute',
                        availableQuantity: altAvailable,
                        missingQuantity: Math.max(0, requiredQuantity - altAvailable),
                    };
                }
            }
            return {
                ingredientId: ingredient.id,
                rawName,
                quantity: requiredQuantity,
                unit: requiredUnit,
                note: ingredient.note ?? null,
                status: 'missing',
                matchedProductId: ingredient.productId,
                matchedProductName: ingredient.product.canonicalName || ingredient.product.name,
                source: null,
                availableQuantity,
                missingQuantity: Math.max(0, requiredQuantity - availableQuantity),
            };
        }));
        const summary = {
            exactCount: ingredients.filter((i) => i.status === 'exact_match').length,
            pantryCount: ingredients.filter((i) => i.status === 'covered_by_pantry').length,
            substituteCount: ingredients.filter((i) => i.status === 'substitutable').length,
            missingCount: ingredients.filter((i) => i.status === 'missing').length,
        };
        const shoppingListCandidates = ingredients
            .filter((i) => i.status === 'missing')
            .map((i) => ({
            ingredientId: i.ingredientId,
            rawName: i.rawName,
            quantity: i.quantity,
            unit: i.unit,
            missingQuantity: i.missingQuantity,
        }));
        return {
            recipeId: recipe.id,
            ingredients,
            summary,
            shoppingListCandidates,
        };
    }
};
exports.RecipeAnalysisService = RecipeAnalysisService;
exports.RecipeAnalysisService = RecipeAnalysisService = __decorate([
    (0, common_1.Injectable)(),
    __metadata("design:paramtypes", [prisma_service_1.PrismaService])
], RecipeAnalysisService);
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