import 'dotenv/config';
import db from '../src/database/models/index.js';
import bcrypt from 'bcryptjs';
import { syncLocationManagers, syncRegionManager, syncZoneManager } from '../src/modules/master/syncHierarchy.service.js';
import { APPLICATION_STAGES, APPLICATION_STATUS, BUSINESS_TYPES } from '../src/common/config/constants.js';

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

async function seed() {
    console.log('--- Seeding Comprehensive Golden Path Data ---');

    await db.sequelize.authenticate();
    await db.sequelize.sync({ alter: false });

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

    // 1. Ensure Roles exist
    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: '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: 'ARCHITECTURE', roleName: 'Architecture Team', category: 'DEPARTMENT' },
        { roleCode: 'FDD', roleName: 'FDD Team', category: 'EXTERNAL' }
    ];

    for (const r of roles) {
        await Role.findOrCreate({ where: { roleCode: r.roleCode }, defaults: r });
    }

    const mapUserRole = async (userRec: any, roleCode: string, assignment: any = {}) => {
        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 }
            });
        }
    };

    // 2. Create Hierarchical Structure
    // Zones
    const zones = [
        { name: 'North Zone', code: 'ZONE-N' },
        { name: 'South Zone', code: 'ZONE-S' }
    ];
    const zoneMap: Record<string, any> = {};
    for (const z of zones) {
        const [zone] = await Zone.findOrCreate({ where: { name: z.name }, defaults: z });
        zoneMap[z.name] = zone;
    }

    // Regions
    const regions = [
        { name: 'NCR Region', zoneName: 'North Zone' },
        { name: 'Punjab Region', zoneName: 'North Zone' },
        { name: 'Karnataka Region', zoneName: 'South Zone' },
        { name: 'Tamil Nadu Region', zoneName: 'South Zone' }
    ];
    const regionMap: Record<string, any> = {};
    for (const r of regions) {
        const zone = zoneMap[r.zoneName];
        const [region] = await Region.findOrCreate({ 
            where: { name: r.name }, 
            defaults: { name: r.name, zoneId: zone.id } 
        });
        regionMap[r.name] = region;
    }

    // 3. States & Districts (Mapping South Delhi to NCR)
    const ncrRegion = regionMap['NCR Region'];
    
    const [delhiState] = await State.findOrCreate({
        where: { name: 'DELHI' },
        defaults: { name: 'DELHI', zoneId: ncrRegion.zoneId }
    });

    const [southDelhi] = await District.findOrCreate({
        where: { name: 'South Delhi' },
        defaults: { 
            name: 'South Delhi', 
            stateId: delhiState.id, 
            regionId: ncrRegion.id, 
            zoneId: ncrRegion.zoneId, 
            isActive: true 
        }
    });

    // Ensure it's explicitly under NCR
    await southDelhi.update({ regionId: ncrRegion.id });

    console.log('✅ Mapping: South Delhi -> NCR Region');

    // 3. Create Key Management Users
    // National / Administrative
    const nationalUsers = [
        { email: 'nbh@royalenfield.com', name: 'Alwyn John', role: 'NBH' },
        { email: 'ddhead@royalenfield.com', name: 'Vikram Singh', role: 'DD Head' },
        { email: 'finance@royalenfield.com', name: 'Rahul Verma', role: 'Finance' },
        { email: 'admin@royalenfield.com', name: 'Laxman H', role: 'Super Admin' },
        { email: 'lince@gmail.com', name: 'Lince', role: 'DD Admin' },
        { email: 'fdd@royalenfield.com', name: 'FDD Partner', role: 'FDD' },
        { email: 'architecture@royalenfield.com', name: 'RE Architect', role: 'ARCHITECTURE' }
    ];
    for (const u of nationalUsers) {
        const [user] = await User.findOrCreate({ 
            where: { email: u.email }, 
            defaults: { fullName: u.name, roleCode: u.role, password: hashedPassword, status: 'active' } 
        });
        await mapUserRole(user, u.role);
    }

    // Frontend Mock Users for Quick Login (Ensuring exact matches)
    const frontendMocks = [
        { email: 'ddlead@royalenfield.com', name: 'Meera Iyer', role: 'DD Lead', zone: 'North Zone' },
        { email: 'yashwin@gmail.com', name: 'Yashwin', role: 'ZBH', zone: 'North Zone' },
        { email: 'kenil@gmail.com', name: 'Kenil', role: 'DD Lead', zone: 'North Zone' },
        { email: 'dealer@royalenfield.com', name: 'Amit Sharma', role: 'Dealer', district: 'South Delhi' }
    ];
    for (const m of frontendMocks) {
        const assignment: any = {};
        if (m.zone) assignment.zoneId = zoneMap[m.zone].id;
        if (m.district) {
            const d = await District.findOne({ where: { name: m.district } });
            if (d) {
                assignment.districtId = d.id;
                assignment.zoneId = d.zoneId;
                assignment.regionId = d.regionId;
            }
        }
        const [user] = await User.findOrCreate({ 
            where: { email: m.email }, 
            defaults: { fullName: m.name, roleCode: m.role, password: hashedPassword, status: 'active' } 
        });
        await mapUserRole(user, m.role, assignment);
    }

    // Zonal Business Heads (Additional)
    const zbhUsers = [
        { email: 'zbh.south@royalenfield.com', name: 'Srinivasan K', zone: 'South Zone' }
    ];
    for (const u of zbhUsers) {
        const zone = zoneMap[u.zone];
        const [user] = await User.findOrCreate({ 
            where: { email: u.email }, 
            defaults: { fullName: u.name, roleCode: 'ZBH', password: hashedPassword, status: 'active' } 
        });
        await mapUserRole(user, 'ZBH', { zoneId: zone.id });
    }

    // Regional Managers (RBMs)
    const rbmUsers = [
        { email: 'rbm.ncr@royalenfield.com', name: 'Sanjay Dutt', region: 'NCR Region' },
        { email: 'rbm.punjab@royalenfield.com', name: 'Harpreet Singh', region: 'Punjab Region' },
        { email: 'rbm.kar@royalenfield.com', name: 'Manish Kumar', region: 'Karnataka Region' }
    ];
    for (const u of rbmUsers) {
        const region = regionMap[u.region];
        const [user] = await User.findOrCreate({ 
            where: { email: u.email }, 
            defaults: { fullName: u.name, roleCode: 'RBM', password: hashedPassword, status: 'active' } 
        });
        await mapUserRole(user, 'RBM', { regionId: region.id, zoneId: region.zoneId });
    }

    // Zonal Managers (DD-ZM) - Assigned to Regions
    const zmUsers = [
        { email: 'zm.ncr@royalenfield.com', name: 'Rajesh Khanna', region: 'NCR Region' },
        { email: 'zm.south@royalenfield.com', name: 'Kartik Subbaraj', region: 'Karnataka Region' }
    ];
    for (const u of zmUsers) {
        const region = regionMap[u.region];
        const [user] = await User.findOrCreate({ 
            where: { email: u.email }, 
            defaults: { fullName: u.name, roleCode: 'DD-ZM', password: hashedPassword, status: 'active' } 
        });
        await mapUserRole(user, 'DD-ZM', { regionId: region.id, zoneId: region.zoneId });
    }

    // ASMs (Assigned to Districts)
    const asmUsers = [
        { email: 'asm.sdelhi@royalenfield.com', name: 'Arun Jaitley', district: 'South Delhi' },
        { email: 'asm.noida@royalenfield.com', name: 'Kishan Reddy', district: 'NOIDA' },
        { email: 'asm.bangalore@royalenfield.com', name: 'Vishnu Dev', district: 'Bangalore Urban' }
    ];
    for (const u of asmUsers) {
        const district = await District.findOne({ where: { name: u.district } });
        if (district) {
            const [user] = await User.findOrCreate({ 
                where: { email: u.email }, 
                defaults: { fullName: u.name, roleCode: 'ASM', password: hashedPassword, status: 'active' } 
            });
            await mapUserRole(user, 'ASM', { districtId: district.id, zoneId: district.zoneId, regionId: district.regionId });
        }
    }

    // 10. Create Test Dealer for Offboarding Workflows
    console.log('🌱 Creating Test Dealer for Offboarding...');
    const dealerUser = await User.findOne({ where: { email: 'dealer@royalenfield.com' } });
    const asmUser = await User.findOne({ where: { email: 'asm.sdelhi@royalenfield.com' } });

    if (dealerUser && southDelhi) {
        // 1. Create Placeholder Application (The "Golden Path" root)
        const [application] = await db.Application.findOrCreate({
            where: { applicationId: 'APP-TEST-001' },
            defaults: {
                applicationId: 'APP-TEST-001',
                applicantName: 'Amit Sharma',
                email: 'dealer@royalenfield.com',
                phone: '9876543210',
                businessType: BUSINESS_TYPES.DEALERSHIP,
                submittedBy: dealerUser.id, // Corrected: Prospect/Applicant initiates the request
                constitutionType: 'Private Limited',
                currentStage: APPLICATION_STAGES.APPROVED,
                overallStatus: APPLICATION_STATUS.ONBOARDED,
                progressPercentage: 100,
                isShortlisted: true,
                districtId: southDelhi.id,
                documents: []
            }
        });

        // 2. Create SAP/Dealer Codes (Dependency for Dealer Profile)
        const [dealerCodeRecord] = await db.DealerCode.findOrCreate({
            where: { dealerCode: 'D1001' },
            defaults: {
                dealerCode: 'D1001',
                applicationId: application.id,
                salesCode: 'S1001',
                serviceCode: 'V1001',
                gmaCode: 'G1001',
                gearCode: 'GE1001',
                sapMasterId: 'SAP-999',
                status: 'active'
            }
        });

        // 3. Create Dealer Profile (Linked to App and Code)
        const [dealerProfile] = await db.Dealer.findOrCreate({
            where: { applicationId: application.id },
            defaults: {
                applicationId: application.id,
                dealerCodeId: dealerCodeRecord.id,
                legalName: 'Amit Sharma Dealership Pvt Ltd',
                businessName: 'Royal Enfield South Delhi',
                constitutionType: 'Private Limited',
                status: 'active',
                onboardedAt: new Date()
            }
        });

        // 4. Update Dealer User to link to the Dealer Profile
        await dealerUser.update({ dealerId: dealerProfile.id });

        // 5. Create Main Outlet
        // Note: As per Outlet model, dealerId refers to the User ID (Owner)
        await db.Outlet.findOrCreate({
            where: { code: 'O001' },
            defaults: {
                dealerId: dealerUser.id, // Linked to the User ID as owner
                name: 'Main Outlet - South Delhi',
                code: 'O001',
                type: 'Dealership',
                address: '123, MG Road, South Delhi',
                city: 'Delhi',
                state: 'Delhi',
                pincode: '110001',
                establishedDate: new Date('2020-01-01'),
                districtId: southDelhi.id,
                status: 'Active'
            }
        });

        console.log('✅ Successfully seeded Golden Path: Application -> DealerCode -> Dealer Profile -> User -> Outlet');
    }

    console.log('--- Triggering Hierarchy Synchronization ---');
    // ... (rest same)

    console.log('--- Golden Path Seeding Complete ---');
}

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