import 'dotenv/config';
import db from '../src/database/models/index.js';
import bcrypt from 'bcryptjs';

const { Role, Zone, Region, State, Location, User, UserRole } = db;

async function seed() {
    console.log('--- Seeding Normalized Denormalized Data ---');

    await db.sequelize.authenticate();
    // Use sync with alter false to match main app behavior
    await db.sequelize.sync({ alter: false });

    const hashedPassword = await bcrypt.hash('Admin@123', 10);

    // 1. Create Roles
    const roles = [
        { roleCode: 'NBH', roleName: 'National Business Head', category: 'NATIONAL' },
        { roleCode: 'DD Head', roleName: 'DD Head', category: 'NATIONAL' },
        { roleCode: 'ZBH', roleName: 'Zonal Business Head', category: 'ZONAL' },
        { roleCode: 'DD Lead', roleName: 'DD Lead', category: 'ZONAL' },
        { roleCode: 'RBM', roleName: 'Regional Business Manager', category: 'REGIONAL' },
        { roleCode: 'RM', roleName: 'Regional Manager', category: 'REGIONAL' },
        { roleCode: 'DD-ZM', roleName: 'DD Zonal Manager', category: 'ZONAL' },
        { roleCode: 'ASM', roleName: 'Area Sales Manager', category: 'AREA' },
        { roleCode: 'Super Admin', roleName: 'Super Admin', category: 'NATIONAL' },
        { roleCode: 'Finance', roleName: 'Finance', category: 'DEPARTMENT' },
        { roleCode: 'Dealer', roleName: 'Dealer', category: 'EXTERNAL' },
        { roleCode: 'DD Admin', roleName: 'DD Admin', category: 'ADMIN' },
        { roleCode: 'Legal Admin', roleName: 'Legal Admin', category: 'DEPARTMENT' }
    ];

    for (const r of roles) {
        await Role.findOrCreate({ where: { roleCode: r.roleCode }, defaults: r });
    }
    console.log('Roles seeded.');

    // 2. Create Locations (Hierarchy)
    const [zone1] = await Zone.findOrCreate({
        where: { name: 'North Zone' },
        defaults: { name: 'North Zone', code: 'ZONE-N' }
    });

    const [zone2] = await Zone.findOrCreate({
        where: { name: 'South Zone' },
        defaults: { name: 'South Zone', code: 'ZONE-S' }
    });

    const [state1] = await State.findOrCreate({
        where: { name: 'Delhi' },
        defaults: { name: 'Delhi', zoneId: zone1.id }
    });

    const [region1] = await Region.findOrCreate({
        where: { name: 'NCR Region' },
        defaults: { name: 'NCR Region', zoneId: zone1.id }
    });

    const [region2] = await Region.findOrCreate({
        where: { name: 'Bangalore Region' },
        defaults: { name: 'Bangalore Region', zoneId: zone2.id }
    });

    const [district1] = await Location.findOrCreate({
        where: { name: 'South Delhi District' },
        defaults: { name: 'South Delhi District', stateId: state1.id, regionId: region1.id, zoneId: zone1.id }
    });

    console.log('Geographical Hierarchy seeded.');

    const mapUserRole = async (userRec: any, roleCode: string, assignment: { zoneId?: string | null, regionId?: string | null, locationId?: string | null } = {}) => {
        const role = await Role.findOne({ where: { roleCode } });
        if (role) {
            await UserRole.findOrCreate({
                where: {
                    userId: userRec.id,
                    roleId: role.id,
                    ...assignment
                },
                defaults: {
                    userId: userRec.id,
                    roleId: role.id,
                    ...assignment,
                    isActive: true,
                    isPrimary: true
                }
            });
        }
    };

    // 4. Create Users and Map them
    // Custom Seed Users
    const nbhResult = await User.findOrCreate({
        where: { email: 'nbh@example.com' },
        defaults: { fullName: 'National Head', roleCode: 'NBH', password: hashedPassword }
    });
    await mapUserRole(nbhResult[0], 'NBH');

    const zbhResult = await User.findOrCreate({
        where: { email: 'zbh.north@example.com' },
        defaults: { fullName: 'North Zonal Head', roleCode: 'ZBH', password: hashedPassword }
    });
    await mapUserRole(zbhResult[0], 'ZBH', { zoneId: zone1.id });

    const rmResult = await User.findOrCreate({
        where: { email: 'rbm.delhi@example.com' },
        defaults: { fullName: 'Delhi Regional Manager', roleCode: 'RM', password: hashedPassword }
    });
    await mapUserRole(rmResult[0], 'RM', { regionId: region1.id });

    const asmResult = await User.findOrCreate({
        where: { email: 'asm.sdelhi@example.com' },
        defaults: { fullName: 'South Delhi ASM', roleCode: 'ASM', password: hashedPassword }
    });
    await mapUserRole(asmResult[0], 'ASM', { locationId: district1.id });

    // Mock Users alignment
    const mockUsers = [
        { email: 'ddlead@royalenfield.com', name: 'Meera Iyer', roleCode: 'DD Lead', assignment: { zoneId: zone1.id } },
        { email: 'finance@royalenfield.com', name: 'Rahul Verma', roleCode: 'Finance', assignment: {} },
        { email: 'dealer@royalenfield.com', name: 'Amit Sharma', roleCode: 'Dealer', assignment: { locationId: district1.id }, isExt: true },
        { email: 'admin@royalenfield.com', name: 'Laxman H', roleCode: 'DD Lead', assignment: { zoneId: zone2.id } },
        { email: 'yashwin@gmail.com', name: 'Yashwin', roleCode: 'ZBH', assignment: { zoneId: zone1.id } },
        { email: 'kenil@gmail.com', name: 'Kenil', roleCode: 'DD Lead', assignment: { zoneId: zone1.id } },
        { email: 'lince@gmail.com', name: 'Lince', roleCode: 'DD Admin', assignment: {} }
    ];

    for (const m of mockUsers) {
        const [u] = await User.findOrCreate({
            where: { email: m.email },
            defaults: { 
                fullName: m.name, 
                roleCode: m.roleCode, 
                password: hashedPassword,
                isExternal: m.isExt || false,
                status: 'active'
            }
        });
        await mapUserRole(u, m.roleCode, m.assignment);
    }

    console.log('Users and Mappings seeded.');
    console.log('--- Seeding Complete ---');
}

seed().catch(err => {
    console.error(err);
    process.exit(1);
}).then(() => process.exit(0));