import fs from 'fs';

const BASE_URL = 'http://localhost:5000/api';
const PASSWORD = 'Admin@123';

const EMAILS = {
    DD_ADMIN: 'lince@gmail.com',
    DEALER: 'dealer@royalenfield.com',
    ASM: 'asm.sdelhi@royalenfield.com',
    RBM_L1: 'rbm.ncr@royalenfield.com',
    ZBH: 'yashwin@gmail.com',
    DD_LEAD: 'ddlead@royalenfield.com',
    DD_HEAD: 'ddhead@royalenfield.com',
    NBH: 'nbh@royalenfield.com',
    LEGAL: 'legal@royalenfield.com'
};

async function apiRequest(endpoint, method = 'GET', body = null, token = null) {
    const headers = { 'Content-Type': 'application/json' };
    if (token) headers['Authorization'] = `Bearer ${token}`;

    const config = { method, headers };
    if (body) config.body = JSON.stringify(body);

    const response = await fetch(`${BASE_URL}${endpoint}`, config);
    const data = await response.json();

    if (!response.ok) {
        throw new Error(`API Error ${method} ${endpoint}: ${JSON.stringify(data)}`);
    }
    return data;
}

async function login(email) {
    const data = await apiRequest('/auth/login', 'POST', { email, password: PASSWORD });
    return data.token;
}

const delay = (ms = 500) => new Promise(res => setTimeout(res, ms));

async function run() {
    try {
        console.log('--- STARTING CONSTITUTIONAL CHANGE E2E FLOW ---');

        console.log(`[STEP 0] Logging in as Dealer: ${EMAILS.DEALER}...`);
        const dealerToken = await login(EMAILS.DEALER);
        
        console.log('[STEP 1] Dealer Submitting Constitutional Change...');
        const createRes = await apiRequest('/self-service/constitutional', 'POST', {
            changeType: 'LLP Conversion',
            reason: 'Converting to LLP for better operational governance.',
            currentConstitution: 'Proprietorship',
            newPartnersDetails: 'John Doe, Jane Smith',
            shareholdingPattern: '60/40'
        }, dealerToken);

        const requestId = createRes.requestId; 
        console.log(`[STEP 1] Request Created. RequestID: ${requestId}`);

        // Sequence of users taking actions to advance stages
        // 1. Dealer SUBMITTED -> ASM_REVIEW
        // 2. ASM moves it to ZM_RBM_REVIEW
        // 3. ZM moves it to ZBH_REVIEW
        // 4. ZBH moves it to LEAD_REVIEW
        // 5. LEAD moves it to HEAD_REVIEW
        // 6. HEAD moves it to NBH_APPROVAL
        // 7. NBH moves it to LEGAL_REVIEW
        // 8. LEGAL moves it to COMPLETED
        const approvalSequence = [
            { name: 'ASM', email: EMAILS.ASM },
            { name: 'ZM/RBM', email: EMAILS.RBM_L1 },
            { name: 'ZBH', email: EMAILS.ZBH },
            { name: 'DD Lead', email: EMAILS.DD_LEAD },
            { name: 'DD Head', email: EMAILS.DD_HEAD },
            { name: 'NBH', email: EMAILS.NBH },
            { name: 'Legal Admin', email: EMAILS.LEGAL }
        ];

        let currentStep = 2;
        for (const actor of approvalSequence) {
            console.log(`[STEP ${currentStep}] ${actor.name} (${actor.email}) processing approval...`);
            const token = await login(actor.email);
            const res = await apiRequest(`/self-service/constitutional/${requestId}/action`, 'POST', {
                action: 'Approve',
                comments: `${actor.name} verified the request.`
            }, token);
            console.log(`[STEP ${currentStep}] ${actor.name} Result: ${res.message}`);
            currentStep++;
            await delay(500);
        }

        console.log('[FINAL STEP] Verifying Completion Status...');
        const adminToken = await login(EMAILS.DD_ADMIN);
        const finalDetails = await apiRequest(`/self-service/constitutional/${requestId}`, 'GET', null, adminToken);
        console.log(`Final Stage REACHED: ${finalDetails.request.currentStage}`);
        console.log(`Final Status: ${finalDetails.request.status}`);

        console.log('\n--- VERIFICATION RESULTS ---');
        console.log('Legal Team Participation: CONFIRMED (Participated at Step 8)');
        console.log('Final Outcome: SUCCESS (Workflow reached COMPLETED stage)');
        console.log('--- CONSTITUTIONAL CHANGE FLOW COMPLETED SUCCESSFULLY! ---');

    } catch (error) {
        console.error('Workflow failed:', error.message);
        process.exit(1);
    }
}

run();