import { z } from 'zod';

import { baseListQuerySchema } from '@/lib/api/route-helpers';

export const createTemplateSchema = z.object({
  name: z.string().min(1).max(200),
  description: z.string().max(500).optional(),
  templateType: z.enum([
    'welcome_letter',
    'handover_checklist',
    'acknowledgment',
    'correspondence',
    'custom',
  ]),
  bodyHtml: z.string().min(1),
  mergeFields: z.array(z.string()).optional().default([]),
  isActive: z.boolean().default(true),
});

export const updateTemplateSchema = createTemplateSchema.partial();

export const listTemplatesSchema = baseListQuerySchema.extend({
  templateType: z.string().optional(),
  isActive: z
    .enum(['true', 'false'])
    .transform((v) => v === 'true')
    .optional(),
});

export const generateSchema = z.object({
  clientId: z.string().optional(),
  interestId: z.string().optional(),
  berthId: z.string().optional(),
});

export const generateAndSendSchema = generateSchema.extend({
  recipientEmail: z.string().email(),
});

export const generateAndSignSchema = generateSchema.extend({
  signers: z
    .array(
      z.object({
        name: z.string().min(1),
        email: z.string().email(),
        role: z.string().min(1),
        signingOrder: z.number().int().min(1),
      }),
    )
    .min(1),
});

export type CreateTemplateInput = z.infer<typeof createTemplateSchema>;
export type UpdateTemplateInput = z.infer<typeof updateTemplateSchema>;
export type ListTemplatesInput = z.infer<typeof listTemplatesSchema>;
export type GenerateInput = z.infer<typeof generateSchema>;
export type GenerateAndSendInput = z.infer<typeof generateAndSendSchema>;
export type GenerateAndSignInput = z.infer<typeof generateAndSignSchema>;

// ─── TipTap-based Admin Template Schemas ─────────────────────────────────────
// Used by /api/v1/admin/templates — the TipTap JSON document store.

export const tiptapDocumentTypes = [
  'eoi',
  'contract',
  'nda',
  'reservation_agreement',
  'letter',
  'other',
] as const;

export const createAdminTemplateSchema = z.object({
  name: z.string().min(1).max(200),
  type: z.enum(tiptapDocumentTypes),
  content: z.record(z.unknown()), // TipTap JSON document
});

export const updateAdminTemplateSchema = z.object({
  name: z.string().min(1).max(200).optional(),
  content: z.record(z.unknown()).optional(),
  isActive: z.boolean().optional(),
});

export const previewAdminTemplateSchema = z.object({
  content: z.record(z.unknown()),
  sampleData: z.record(z.string()).optional(),
});

export const rollbackAdminTemplateSchema = z.object({
  version: z.number().int().min(1),
});

export const listAdminTemplatesSchema = baseListQuerySchema.extend({
  type: z.enum(tiptapDocumentTypes).optional(),
  isActive: z
    .enum(['true', 'false'])
    .transform((v) => v === 'true')
    .optional(),
});

export type CreateAdminTemplateInput = z.infer<typeof createAdminTemplateSchema>;
export type UpdateAdminTemplateInput = z.infer<typeof updateAdminTemplateSchema>;
export type PreviewAdminTemplateInput = z.infer<typeof previewAdminTemplateSchema>;
export type RollbackAdminTemplateInput = z.infer<typeof rollbackAdminTemplateSchema>;
export type ListAdminTemplatesInput = z.infer<typeof listAdminTemplatesSchema>;