import {
    Menu 
} from "../../../models/Menu";
import Plan from "../../../models/Plan";
import Subscription from "../../../models/Subscription";
import {
    User
} from "../../../models/User";
import smsSend from "../smsSend";
import {
    RegisterInput,
    RegisterResult
} from "./types";

const generateSlug = (companyName: string): string => {
    return companyName
        .toLowerCase()
        .replace(/ğ/g, "g")
        .replace(/ü/g, "u")
        .replace(/ş/g, "s")
        .replace(/ı/g, "i")
        .replace(/ö/g, "o")
        .replace(/ç/g, "c")
        .replace(/[^a-z0-9\s-]/g, "")
        .trim()
        .replace(/\s+/g, "-")
        .replace(/-+/g, "-");
};

const register = async (input: RegisterInput): Promise<RegisterResult> => {
    try {
        const {
            companyName,
            phoneNumber,
            firstName,
            lastName,
            password,
            mail
        } = input;

        const existingUser = await User.findOne({
            mail
        });
        if (existingUser) {
            return {
                message: "email-already-in-use",
                code: 409
            };
        }

        const existingPhone = await User.findOne({
            phoneNumber
        });
        if (existingPhone) {
            return {
                message: "phone-already-in-use",
                code: 409
            };
        }

        const slug = generateSlug(companyName);
        const existingSlug = await User.findOne({
            slug
        });

        if (existingSlug) {
            return {
                message: "company-name-already-in-use",
                code: 409
            };
        }

        const newUser = await User.create({
            fullName: `${firstName} ${lastName}`,
            phoneNumber,
            companyName,
            firstName,
            lastName,
            password,
            slug,
            mail
        });
        
        await Menu.create({
            userID: newUser._id,
            isViewPrice: true,
            isActive: true,
            products: []
        });

        const starterPlan = await Plan.findOne({
            title: "Starter" 
        });
        
        await Subscription.create({
            userID: newUser._id.toString(),
            planID: starterPlan._id,
            title: starterPlan.title,
            isActive: true,
            startDate: new Date(),
            endDate: new Date(new Date().setFullYear(new Date().getFullYear() + 1)),
            status: "active",
            price: starterPlan!.type.find((t: { type: string; price: number }) => t.type === "yearly")?.price ?? 0
        });

        await smsSend({
            userID: newUser._id.toString()
        });

        return {
            message: "registration-successful-please-verify-your-phone",
            code: 201
        };
    } catch (error) {
        console.error("FinishMailVerify error:", error);
        return {
            message: "internal-server-error",
            code: 500
        };
    }
};

export default register;