import { PrismaClient, UserRole, EmailTemplateCategory } from '@prisma/client';
import bcrypt from 'bcryptjs';
import * as fs from 'fs';
import * as path from 'path';
import { env } from '../src/config/env';

const prisma = new PrismaClient();

async function main() {
  console.log('Seeding database...');

  // Create default super admin from environment variables
  // Skip creation if password is a placeholder (contains "CHANGE_THIS")
  const initialAdminEmail = env.INITIAL_ADMIN_EMAIL;
  const initialAdminPassword = env.INITIAL_ADMIN_PASSWORD;

  let admin: { id: string; email: string } | null = null;

  // Validate password meets policy before proceeding
  if (initialAdminPassword.length < 12 ||
      !/[A-Z]/.test(initialAdminPassword) ||
      !/[a-z]/.test(initialAdminPassword) ||
      !/[0-9]/.test(initialAdminPassword)) {
    console.warn('⚠️  INITIAL_ADMIN_PASSWORD does not meet password policy (12+ chars, uppercase, lowercase, digit)');
    console.warn('⚠️  Skipping admin user creation. Please set a valid password in .env');
  } else if (initialAdminPassword.includes('CHANGE_THIS') || initialAdminPassword.includes('REQUIRED')) {
    console.warn('⚠️  INITIAL_ADMIN_PASSWORD contains placeholder value');
    console.warn('⚠️  Skipping admin user creation. Please set a real password in .env');
  } else {
    const hashedPassword = await bcrypt.hash(initialAdminPassword, 10);

    admin = await prisma.user.upsert({
      where: { email: initialAdminEmail },
      update: {
        password: hashedPassword,
        emailVerified: true,
        status: 'ACTIVE',
      },
      create: {
        email: initialAdminEmail,
        password: hashedPassword,
        name: 'Admin',
        role: UserRole.SUPER_ADMIN,
        roles: JSON.parse(JSON.stringify([UserRole.SUPER_ADMIN])),
        emailVerified: true,
      },
    });

    console.log(`✅ Created/updated admin user: ${admin.email}`);
  }

  // If admin wasn't created (placeholder password), try to find existing admin
  if (!admin) {
    admin = await prisma.user.findFirst({
      where: { role: UserRole.SUPER_ADMIN },
      select: { id: true, email: true },
    });
    if (admin) {
      console.log(`ℹ️  Found existing admin user: ${admin.email}`);
    }
  }

  // Create default map settings
  await prisma.mapSettings.upsert({
    where: { id: 'default' },
    update: {},
    create: {
      id: 'default',
      latitude: 53.5461,
      longitude: -113.4938,
      zoom: 11,
      walkSheetTitle: 'Walk Sheet',
      walkSheetSubtitle: '',
      walkSheetFooter: '',
    },
  });

  console.log('Created default map settings');

  // Phase 3: v1 data migration will go here
  // - Export NocoDB data via API
  // - Import influence_users + login tables → unified users
  // - Deduplicate by email
  // - Hash plaintext passwords
  // - Import campaigns, locations, shifts, cuts, etc.

  // Create default page blocks for landing page builder
  const defaultBlocks = [
    {
      id: 'default-hero',
      type: 'hero',
      label: 'Hero Section',
      category: 'Headers',
      sortOrder: 1,
      schema: {
        title: { type: 'string', label: 'Title' },
        subtitle: { type: 'string', label: 'Subtitle' },
        backgroundImage: { type: 'string', label: 'Background Image URL' },
        ctaText: { type: 'string', label: 'Button Text' },
        ctaUrl: { type: 'string', label: 'Button URL' },
      },
      defaults: {
        title: 'Welcome to Our Campaign',
        subtitle: 'Join us in making a difference in your community.',
        backgroundImage: '',
        ctaText: 'Get Involved',
        ctaUrl: '#',
      },
    },
    {
      id: 'default-text',
      type: 'text',
      label: 'Text Block',
      category: 'Content',
      sortOrder: 2,
      schema: {
        heading: { type: 'string', label: 'Heading' },
        body: { type: 'text', label: 'Body Text' },
      },
      defaults: {
        heading: 'About Us',
        body: 'Tell your story here. Explain your mission, values, and what drives your campaign forward.',
      },
    },
    {
      id: 'default-features',
      type: 'features',
      label: 'Features Grid',
      category: 'Content',
      sortOrder: 3,
      schema: {
        features: { type: 'array', label: 'Features', items: { title: 'string', description: 'string', icon: 'string' } },
      },
      defaults: {
        features: [
          { title: 'Community Action', description: 'Organize local events and initiatives.', icon: '' },
          { title: 'Advocacy', description: 'Email your representatives directly.', icon: '' },
          { title: 'Volunteer', description: 'Sign up for shifts and make a difference.', icon: '' },
        ],
      },
    },
    {
      id: 'default-cta',
      type: 'cta',
      label: 'Call to Action',
      category: 'Actions',
      sortOrder: 4,
      schema: {
        heading: { type: 'string', label: 'Heading' },
        description: { type: 'string', label: 'Description' },
        buttonText: { type: 'string', label: 'Button Text' },
        buttonUrl: { type: 'string', label: 'Button URL' },
      },
      defaults: {
        heading: 'Ready to Take Action?',
        description: 'Join thousands of community members making their voices heard.',
        buttonText: 'Join Now',
        buttonUrl: '#',
      },
    },
    {
      id: 'default-testimonials',
      type: 'testimonials',
      label: 'Testimonials',
      category: 'Content',
      sortOrder: 5,
      schema: {
        quotes: { type: 'array', label: 'Quotes', items: { text: 'string', author: 'string', role: 'string' } },
      },
      defaults: {
        quotes: [
          { text: 'This platform made it so easy to contact my representatives.', author: 'Jane D.', role: 'Community Member' },
          { text: 'I signed up for a volunteer shift and it changed my perspective.', author: 'Mark S.', role: 'Volunteer' },
        ],
      },
    },
    {
      id: 'default-contact-form',
      type: 'contact-form',
      label: 'Contact Form',
      category: 'Actions',
      sortOrder: 6,
      schema: {
        heading: { type: 'string', label: 'Heading' },
        fields: { type: 'array', label: 'Fields', items: { name: 'string', type: 'string', required: 'boolean' } },
      },
      defaults: {
        heading: 'Get in Touch',
        fields: [
          { name: 'Name', type: 'text', required: true },
          { name: 'Email', type: 'email', required: true },
          { name: 'Message', type: 'textarea', required: true },
        ],
      },
    },
    {
      id: 'default-video',
      type: 'video',
      label: 'Video Player',
      category: 'Media',
      sortOrder: 7,
      schema: {
        videoId: { type: 'number', label: 'Video ID', required: true },
        playerType: { type: 'select', label: 'Player Type', options: ['standard', 'advanced'], default: 'standard' },
        width: { type: 'string', label: 'Width', default: '100%' },
        height: { type: 'string', label: 'Height', default: 'auto' },
        autoplay: { type: 'boolean', label: 'Autoplay', default: false },
        controls: { type: 'boolean', label: 'Show Controls', default: true },
        showReactions: { type: 'boolean', label: 'Show Reactions (Advanced Only)', default: true },
      },
      defaults: {
        videoId: null,
        playerType: 'standard',
        width: '100%',
        height: 'auto',
        autoplay: false,
        controls: true,
        showReactions: true,
      },
    },
  ];

  for (const block of defaultBlocks) {
    await prisma.pageBlock.upsert({
      where: { id: block.id },
      update: {},
      create: block,
    });
  }

  console.log(`Created ${defaultBlocks.length} default page blocks`);

  // Seed email templates (skip if no admin user)
  if (admin) {
    await seedEmailTemplates(admin);
  } else {
    console.warn('⚠️  No admin user found - skipping email template seeding');
  }

  console.log('Seed complete.');
}

/**
 * Seed email templates from filesystem
 */
async function seedEmailTemplates(admin: { id: string; email: string }) {
  console.log('Seeding email templates...');

  const templatesDir = path.join(__dirname, '../src/templates/email');

  const templateDefinitions = [
    {
      key: 'campaign-email',
      name: 'Campaign Email to Representative',
      description: 'Email sent when a constituent contacts their elected representative through a campaign',
      category: EmailTemplateCategory.INFLUENCE,
      subjectLine: '{{CAMPAIGN_TITLE}} - Message from {{USER_NAME}}',
      isSystem: true,
      variables: [
        { key: 'CAMPAIGN_TITLE', label: 'Campaign Title', description: 'Title of the advocacy campaign', isRequired: true, isConditional: false, sampleValue: 'Support Climate Action Bill C-12', sortOrder: 0 },
        { key: 'MESSAGE', label: 'Message Body', description: 'The message content written by the constituent', isRequired: true, isConditional: false, sampleValue: 'I urge you to support this important legislation...', sortOrder: 1 },
        { key: 'USER_NAME', label: 'Sender Name', description: 'Name of the constituent sending the email', isRequired: true, isConditional: false, sampleValue: 'Jane Doe', sortOrder: 2 },
        { key: 'USER_EMAIL', label: 'Sender Email', description: 'Email address of the constituent', isRequired: true, isConditional: false, sampleValue: 'jane@example.com', sortOrder: 3 },
        { key: 'POSTAL_CODE', label: 'Postal Code', description: 'Postal code of the constituent', isRequired: true, isConditional: false, sampleValue: 'K1A 0B1', sortOrder: 4 },
        { key: 'RECIPIENT_NAME', label: 'Representative Name', description: 'Name of the representative receiving the email', isRequired: false, isConditional: true, sampleValue: 'Hon. John Smith', sortOrder: 5 },
        { key: 'RECIPIENT_LEVEL', label: 'Government Level', description: 'Level of government', isRequired: false, isConditional: true, sampleValue: 'Federal', sortOrder: 6 },
        { key: 'ORGANIZATION_NAME', label: 'Organization Name', description: 'Name of the organization', isRequired: true, isConditional: false, sampleValue: 'Changemaker Lite', sortOrder: 7 },
        { key: 'TIMESTAMP', label: 'Timestamp', description: 'Date and time the email was sent', isRequired: true, isConditional: false, sampleValue: '2025-02-11T10:30:00Z', sortOrder: 8 },
      ],
    },
    {
      key: 'response-verification',
      name: 'Response Verification Email',
      description: 'Email sent to representatives to verify a submitted response',
      category: EmailTemplateCategory.INFLUENCE,
      subjectLine: 'Verify Your Response - {{CAMPAIGN_TITLE}}',
      isSystem: true,
      variables: [
        { key: 'CAMPAIGN_TITLE', label: 'Campaign Title', description: 'Title of the advocacy campaign', isRequired: true, isConditional: false, sampleValue: 'Support Climate Action Bill C-12', sortOrder: 0 },
        { key: 'RESPONSE_TYPE', label: 'Response Type', description: 'Type of response', isRequired: true, isConditional: false, sampleValue: 'SUPPORT', sortOrder: 1 },
        { key: 'RESPONSE_TEXT', label: 'Response Text', description: 'The text of the response submitted', isRequired: true, isConditional: false, sampleValue: 'I fully support this initiative...', sortOrder: 2 },
        { key: 'SUBMITTER_NAME', label: 'Submitter Name', description: 'Name of the person who submitted the response', isRequired: true, isConditional: false, sampleValue: 'Jane Doe', sortOrder: 3 },
        { key: 'SUBMITTED_DATE', label: 'Submitted Date', description: 'Date the response was submitted', isRequired: true, isConditional: false, sampleValue: 'February 11, 2025', sortOrder: 4 },
        { key: 'VERIFICATION_URL', label: 'Verification URL', description: 'URL to verify the response', isRequired: true, isConditional: false, sampleValue: 'https://api.cmlite.org/api/responses/123/verify/abc123', sortOrder: 5 },
        { key: 'REPORT_URL', label: 'Report URL', description: 'URL to report the response as invalid', isRequired: true, isConditional: false, sampleValue: 'https://api.cmlite.org/api/responses/123/report/abc123', sortOrder: 6 },
        { key: 'ORGANIZATION_NAME', label: 'Organization Name', description: 'Name of the organization', isRequired: true, isConditional: false, sampleValue: 'Changemaker Lite', sortOrder: 7 },
        { key: 'TIMESTAMP', label: 'Timestamp', description: 'Date and time the verification email was sent', isRequired: true, isConditional: false, sampleValue: '2025-02-11T10:30:00Z', sortOrder: 8 },
      ],
    },
    {
      key: 'shift-signup-confirmation',
      name: 'Shift Signup Confirmation',
      description: 'Email sent when a volunteer signs up for a shift',
      category: EmailTemplateCategory.MAP,
      subjectLine: 'Shift Confirmation - {{SHIFT_TITLE}}',
      isSystem: true,
      variables: [
        { key: 'ORGANIZATION_NAME', label: 'Organization Name', description: 'Name of the organization', isRequired: true, isConditional: false, sampleValue: 'Changemaker Lite', sortOrder: 0 },
        { key: 'USER_NAME', label: 'Volunteer Name', description: 'Name of the volunteer', isRequired: true, isConditional: false, sampleValue: 'John Smith', sortOrder: 1 },
        { key: 'USER_EMAIL', label: 'Volunteer Email', description: 'Email address of the volunteer', isRequired: true, isConditional: false, sampleValue: 'john@example.com', sortOrder: 2 },
        { key: 'SHIFT_TITLE', label: 'Shift Title', description: 'Title of the volunteer shift', isRequired: true, isConditional: false, sampleValue: 'Weekend Canvassing - Downtown', sortOrder: 3 },
        { key: 'SHIFT_DATE', label: 'Shift Date', description: 'Date of the volunteer shift', isRequired: true, isConditional: false, sampleValue: 'Saturday, February 15, 2025', sortOrder: 4 },
        { key: 'SHIFT_TIME', label: 'Shift Time', description: 'Time of the volunteer shift', isRequired: true, isConditional: false, sampleValue: '10:00 AM — 2:00 PM', sortOrder: 5 },
        { key: 'SHIFT_LOCATION', label: 'Shift Location', description: 'Location of the volunteer shift', isRequired: true, isConditional: false, sampleValue: '123 Main Street', sortOrder: 6 },
        { key: 'IS_NEW_USER', label: 'Is New User', description: 'Whether this is a new user account', isRequired: false, isConditional: true, sampleValue: 'true', sortOrder: 7 },
        { key: 'TEMP_PASSWORD', label: 'Temporary Password', description: 'Temporary password for new user account', isRequired: false, isConditional: true, sampleValue: 'SwiftEagle42', sortOrder: 8 },
        { key: 'LOGIN_URL', label: 'Login URL', description: 'URL to log in to the system', isRequired: true, isConditional: false, sampleValue: 'https://app.cmlite.org/login', sortOrder: 9 },
      ],
    },
    {
      key: 'shift-details',
      name: 'Shift Details Reminder',
      description: 'Reminder email sent to all volunteers signed up for a shift',
      category: EmailTemplateCategory.MAP,
      subjectLine: 'Shift Reminder - {{SHIFT_TITLE}} on {{SHIFT_DATE}}',
      isSystem: true,
      variables: [
        { key: 'ORGANIZATION_NAME', label: 'Organization Name', description: 'Name of the organization', isRequired: true, isConditional: false, sampleValue: 'Changemaker Lite', sortOrder: 0 },
        { key: 'USER_NAME', label: 'Volunteer Name', description: 'Name of the volunteer', isRequired: true, isConditional: false, sampleValue: 'John Smith', sortOrder: 1 },
        { key: 'SHIFT_TITLE', label: 'Shift Title', description: 'Title of the volunteer shift', isRequired: true, isConditional: false, sampleValue: 'Weekend Canvassing - Downtown', sortOrder: 2 },
        { key: 'SHIFT_DATE', label: 'Shift Date', description: 'Date of the volunteer shift', isRequired: true, isConditional: false, sampleValue: 'Saturday, February 15, 2025', sortOrder: 3 },
        { key: 'SHIFT_START_TIME', label: 'Start Time', description: 'Start time of the shift', isRequired: true, isConditional: false, sampleValue: '10:00 AM', sortOrder: 4 },
        { key: 'SHIFT_END_TIME', label: 'End Time', description: 'End time of the shift', isRequired: true, isConditional: false, sampleValue: '2:00 PM', sortOrder: 5 },
        { key: 'SHIFT_LOCATION', label: 'Shift Location', description: 'Location of the volunteer shift', isRequired: true, isConditional: false, sampleValue: '123 Main Street', sortOrder: 6 },
        { key: 'SHIFT_DESCRIPTION', label: 'Shift Description', description: 'Description of the shift', isRequired: false, isConditional: true, sampleValue: 'We will be canvassing the downtown area...', sortOrder: 7 },
        { key: 'CURRENT_VOLUNTEERS', label: 'Current Volunteers', description: 'Number of volunteers currently signed up', isRequired: true, isConditional: false, sampleValue: '8', sortOrder: 8 },
        { key: 'MAX_VOLUNTEERS', label: 'Max Volunteers', description: 'Maximum number of volunteers allowed', isRequired: true, isConditional: false, sampleValue: '10', sortOrder: 9 },
        { key: 'SHIFT_STATUS', label: 'Shift Status', description: 'Status of the shift', isRequired: true, isConditional: false, sampleValue: 'OPEN', sortOrder: 10 },
      ],
    },
    {
      key: 'email-verification',
      name: 'Email Verification',
      description: 'Sent to new users to verify their email address after self-registration',
      category: EmailTemplateCategory.SYSTEM,
      subjectLine: 'Verify your email — {{ORGANIZATION_NAME}}',
      isSystem: true,
      variables: [
        { key: 'RECIPIENT_NAME', label: 'User Name', description: 'Name of the user being verified', isRequired: true, isConditional: false, sampleValue: 'Jane Doe', sortOrder: 0 },
        { key: 'VERIFICATION_URL', label: 'Verification URL', description: 'URL the user clicks to verify their email', isRequired: true, isConditional: false, sampleValue: 'https://app.cmlite.org/verify-email?token=abc123', sortOrder: 1 },
        { key: 'ORGANIZATION_NAME', label: 'Organization Name', description: 'Name of the organization', isRequired: true, isConditional: false, sampleValue: 'Changemaker Lite', sortOrder: 2 },
        { key: 'EXPIRY_HOURS', label: 'Expiry Hours', description: 'Number of hours until the verification link expires', isRequired: true, isConditional: false, sampleValue: '24', sortOrder: 3 },
      ],
    },
    {
      key: 'password-reset',
      name: 'Password Reset',
      description: 'Sent when a user requests a password reset link',
      category: EmailTemplateCategory.SYSTEM,
      subjectLine: 'Reset your password — {{ORGANIZATION_NAME}}',
      isSystem: true,
      variables: [
        { key: 'RECIPIENT_NAME', label: 'User Name', description: 'Name of the user requesting a reset', isRequired: true, isConditional: false, sampleValue: 'Jane Doe', sortOrder: 0 },
        { key: 'RESET_URL', label: 'Reset URL', description: 'URL the user clicks to reset their password', isRequired: true, isConditional: false, sampleValue: 'https://app.cmlite.org/reset-password?token=abc123', sortOrder: 1 },
        { key: 'ORGANIZATION_NAME', label: 'Organization Name', description: 'Name of the organization', isRequired: true, isConditional: false, sampleValue: 'Changemaker Lite', sortOrder: 2 },
      ],
    },
    {
      key: 'account-approved',
      name: 'Account Approved',
      description: 'Sent to a user when an admin approves their account after email verification',
      category: EmailTemplateCategory.SYSTEM,
      subjectLine: 'Account approved — {{ORGANIZATION_NAME}}',
      isSystem: true,
      variables: [
        { key: 'RECIPIENT_NAME', label: 'User Name', description: 'Name of the approved user', isRequired: true, isConditional: false, sampleValue: 'Jane Doe', sortOrder: 0 },
        { key: 'LOGIN_URL', label: 'Login URL', description: 'URL to the login page', isRequired: true, isConditional: false, sampleValue: 'https://app.cmlite.org/login', sortOrder: 1 },
        { key: 'ORGANIZATION_NAME', label: 'Organization Name', description: 'Name of the organization', isRequired: true, isConditional: false, sampleValue: 'Changemaker Lite', sortOrder: 2 },
      ],
    },
    {
      key: 'account-pending-approval',
      name: 'Account Pending Approval (Admin Notification)',
      description: 'Sent to admins when a new user verifies their email and is awaiting approval',
      category: EmailTemplateCategory.SYSTEM,
      subjectLine: 'New user awaiting approval — {{ORGANIZATION_NAME}}',
      isSystem: true,
      variables: [
        { key: 'NEW_USER_NAME', label: 'New User Name', description: 'Name of the new user requesting approval', isRequired: true, isConditional: false, sampleValue: 'Jane Doe', sortOrder: 0 },
        { key: 'NEW_USER_EMAIL', label: 'New User Email', description: 'Email of the new user', isRequired: true, isConditional: false, sampleValue: 'jane@example.com', sortOrder: 1 },
        { key: 'REGISTERED_AT', label: 'Registration Date', description: 'Date the user registered', isRequired: true, isConditional: false, sampleValue: 'February 16, 2026', sortOrder: 2 },
        { key: 'ADMIN_URL', label: 'Admin URL', description: 'URL to the admin users page filtered to pending approval', isRequired: true, isConditional: false, sampleValue: 'https://app.cmlite.org/app/users?status=PENDING_APPROVAL', sortOrder: 3 },
        { key: 'ORGANIZATION_NAME', label: 'Organization Name', description: 'Name of the organization', isRequired: true, isConditional: false, sampleValue: 'Changemaker Lite', sortOrder: 4 },
      ],
    },
  ];

  let seededCount = 0;
  let skippedCount = 0;

  for (const templateDef of templateDefinitions) {
    try {
      // Check if template already exists
      const existing = await prisma.emailTemplate.findUnique({
        where: { key: templateDef.key },
      });

      if (existing) {
        skippedCount++;
        continue;
      }

      // Read HTML and TXT files from filesystem
      const htmlPath = path.join(templatesDir, `${templateDef.key}.html`);
      const txtPath = path.join(templatesDir, `${templateDef.key}.txt`);

      if (!fs.existsSync(htmlPath) || !fs.existsSync(txtPath)) {
        console.warn(`  ⚠️  Template files not found for ${templateDef.key}`);
        continue;
      }

      const htmlContent = fs.readFileSync(htmlPath, 'utf-8');
      const textContent = fs.readFileSync(txtPath, 'utf-8');

      // Create template with variables and initial version
      await prisma.$transaction(async (tx) => {
        const template = await tx.emailTemplate.create({
          data: {
            key: templateDef.key,
            name: templateDef.name,
            description: templateDef.description,
            category: templateDef.category,
            subjectLine: templateDef.subjectLine,
            htmlContent,
            textContent,
            isSystem: templateDef.isSystem,
            isActive: true,
            createdByUserId: admin.id,
            variables: {
              create: templateDef.variables,
            },
          },
        });

        // Create initial version
        await tx.emailTemplateVersion.create({
          data: {
            templateId: template.id,
            versionNumber: 1,
            subjectLine: templateDef.subjectLine,
            htmlContent,
            textContent,
            changeNotes: 'Initial migration from filesystem',
            createdByUserId: admin.id,
          },
        });
      });

      seededCount++;
    } catch (error) {
      console.error(`  ❌ Error seeding template ${templateDef.key}:`, error);
    }
  }

  console.log(`Email templates seeded: ${seededCount} created, ${skippedCount} skipped`);
}

main()
  .catch((e) => {
    console.error('Seed error:', e);
    process.exit(1);
  })
  .finally(async () => {
    await prisma.$disconnect();
  });