import {
  pgTable,
  primaryKey,
  text,
  boolean,
  integer,
  timestamp,
  jsonb,
  index,
  uniqueIndex,
} from 'drizzle-orm/pg-core';
import { sql } from 'drizzle-orm';
import { ports } from './ports';
import { clients } from './clients';

export const files = pgTable(
  'files',
  {
    id: text('id')
      .primaryKey()
      .$defaultFn(() => crypto.randomUUID()),
    portId: text('port_id')
      .notNull()
      .references(() => ports.id),
    clientId: text('client_id').references(() => clients.id),
    yachtId: text('yacht_id'), // FK wired in relations.ts
    companyId: text('company_id'), // FK wired in relations.ts
    filename: text('filename').notNull(),
    originalName: text('original_name').notNull(),
    mimeType: text('mime_type'),
    sizeBytes: text('size_bytes'), // stored as text to avoid bigint issues; parse as number in app
    storagePath: text('storage_path').notNull(),
    storageBucket: text('storage_bucket').notNull().default('crm-files'),
    category: text('category'), // eoi, contract, image, receipt, correspondence, misc
    uploadedBy: text('uploaded_by').notNull(),
    createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
  },
  (table) => [
    index('idx_files_port').on(table.portId),
    index('idx_files_client').on(table.clientId),
    index('idx_files_yacht').on(table.yachtId),
    index('idx_files_company').on(table.companyId),
  ],
);

export const documents = pgTable(
  'documents',
  {
    id: text('id')
      .primaryKey()
      .$defaultFn(() => crypto.randomUUID()),
    portId: text('port_id')
      .notNull()
      .references(() => ports.id),
    interestId: text('interest_id'), // references interests.id
    clientId: text('client_id').references(() => clients.id),
    yachtId: text('yacht_id'), // FK wired in relations.ts
    companyId: text('company_id'), // FK wired in relations.ts
    reservationId: text('reservation_id'), // FK wired in relations.ts
    documentType: text('document_type').notNull(), // eoi, contract, nda, reservation_agreement, other
    title: text('title').notNull(),
    status: text('status').notNull().default('draft'), // draft, sent, partially_signed, completed, expired, cancelled
    documensoId: text('documenso_id'),
    fileId: text('file_id').references(() => files.id),
    signedFileId: text('signed_file_id').references(() => files.id),
    isManualUpload: boolean('is_manual_upload').notNull().default(false),
    notes: text('notes'),
    remindersDisabled: boolean('reminders_disabled').notNull().default(false),
    reminderCadenceOverride: integer('reminder_cadence_override'),
    createdBy: text('created_by').notNull(),
    createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
    updatedAt: timestamp('updated_at', { withTimezone: true }).notNull().defaultNow(),
  },
  (table) => [
    index('idx_docs_port').on(table.portId),
    index('idx_docs_interest').on(table.interestId),
    index('idx_docs_client').on(table.clientId),
    index('idx_documents_yacht').on(table.yachtId),
    index('idx_documents_company').on(table.companyId),
    index('idx_docs_reservation').on(table.reservationId),
    index('idx_docs_type').on(table.portId, table.documentType),
    index('idx_docs_status_port').on(table.portId, table.status),
  ],
);

export const documentSigners = pgTable(
  'document_signers',
  {
    id: text('id')
      .primaryKey()
      .$defaultFn(() => crypto.randomUUID()),
    documentId: text('document_id')
      .notNull()
      .references(() => documents.id, { onDelete: 'cascade' }),
    signerName: text('signer_name').notNull(),
    signerEmail: text('signer_email').notNull(),
    signerRole: text('signer_role').notNull(), // client, developer, sales, approver, other
    signingOrder: integer('signing_order').notNull(),
    status: text('status').notNull().default('pending'), // pending, signed, declined
    signedAt: timestamp('signed_at', { withTimezone: true }),
    signingUrl: text('signing_url'),
    embeddedUrl: text('embedded_url'),
    createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
  },
  (table) => [index('idx_ds_doc').on(table.documentId)],
);

export const documentEvents = pgTable(
  'document_events',
  {
    id: text('id')
      .primaryKey()
      .$defaultFn(() => crypto.randomUUID()),
    documentId: text('document_id')
      .notNull()
      .references(() => documents.id, { onDelete: 'cascade' }),
    eventType: text('event_type').notNull(), // created, sent, viewed, signed, completed, expired, reminder_sent
    signerId: text('signer_id').references(() => documentSigners.id),
    eventData: jsonb('event_data').default({}),
    signatureHash: text('signature_hash'), // deduplication
    createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
  },
  (table) => [
    index('idx_de_doc').on(table.documentId),
    uniqueIndex('idx_de_dedup')
      .on(table.documentId, table.signatureHash)
      .where(sql`${table.signatureHash} IS NOT NULL`),
  ],
);

export const documentTemplates = pgTable(
  'document_templates',
  {
    id: text('id')
      .primaryKey()
      .$defaultFn(() => crypto.randomUUID()),
    portId: text('port_id')
      .notNull()
      .references(() => ports.id),
    name: text('name').notNull(),
    description: text('description'),
    templateType: text('template_type').notNull(), // welcome_letter, handover_checklist, acknowledgment, correspondence, custom
    // Nullable: only required when template_format='html'.
    bodyHtml: text('body_html'),
    mergeFields: jsonb('merge_fields').notNull().default([]),
    // 'html' | 'pdf_form' | 'pdf_overlay' | 'documenso_render'
    templateFormat: text('template_format').notNull().default('html'),
    sourceFileId: text('source_file_id').references(() => files.id),
    documensoTemplateId: text('documenso_template_id'),
    // pdf_form: { acroFieldName: mergeToken }
    fieldMapping: jsonb('field_mapping').notNull().default({}),
    // pdf_overlay: [{ token, page, x, y, fontSize }]
    overlayPositions: jsonb('overlay_positions').notNull().default([]),
    // null = no auto-reminders
    reminderCadenceDays: integer('reminder_cadence_days'),
    isActive: boolean('is_active').notNull().default(true),
    createdBy: text('created_by').notNull(),
    createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
    updatedAt: timestamp('updated_at', { withTimezone: true }).notNull().defaultNow(),
  },
  (table) => [
    index('idx_dt_port').on(table.portId),
    index('idx_dt_type').on(table.portId, table.templateType),
  ],
);

export const documentWatchers = pgTable(
  'document_watchers',
  {
    documentId: text('document_id')
      .notNull()
      .references(() => documents.id, { onDelete: 'cascade' }),
    userId: text('user_id').notNull(),
    addedBy: text('added_by').notNull(),
    addedAt: timestamp('added_at', { withTimezone: true }).notNull().defaultNow(),
  },
  (table) => [
    primaryKey({ columns: [table.documentId, table.userId] }),
    index('idx_doc_watchers_doc').on(table.documentId),
    index('idx_doc_watchers_user').on(table.userId),
  ],
);

export const formTemplates = pgTable(
  'form_templates',
  {
    id: text('id')
      .primaryKey()
      .$defaultFn(() => crypto.randomUUID()),
    portId: text('port_id')
      .notNull()
      .references(() => ports.id),
    name: text('name').notNull(),
    description: text('description'),
    fields: jsonb('fields').notNull(),
    branding: jsonb('branding').default({}),
    isActive: boolean('is_active').notNull().default(true),
    createdBy: text('created_by').notNull(),
    createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
    updatedAt: timestamp('updated_at', { withTimezone: true }).notNull().defaultNow(),
  },
  (table) => [index('idx_ft_port').on(table.portId)],
);

export const formSubmissions = pgTable(
  'form_submissions',
  {
    id: text('id')
      .primaryKey()
      .$defaultFn(() => crypto.randomUUID()),
    formTemplateId: text('form_template_id')
      .notNull()
      .references(() => formTemplates.id),
    clientId: text('client_id').references(() => clients.id),
    interestId: text('interest_id'), // references interests.id
    token: text('token').notNull().unique(),
    prefilledData: jsonb('prefilled_data').default({}),
    submittedData: jsonb('submitted_data'),
    status: text('status').notNull().default('pending'), // pending, submitted, expired
    expiresAt: timestamp('expires_at', { withTimezone: true }),
    submittedAt: timestamp('submitted_at', { withTimezone: true }),
    createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
  },
  (table) => [uniqueIndex('idx_fs_token').on(table.token)],
);

export type File = typeof files.$inferSelect;
export type NewFile = typeof files.$inferInsert;
export type Document = typeof documents.$inferSelect;
export type NewDocument = typeof documents.$inferInsert;
export type DocumentSigner = typeof documentSigners.$inferSelect;
export type NewDocumentSigner = typeof documentSigners.$inferInsert;
export type DocumentEvent = typeof documentEvents.$inferSelect;
export type NewDocumentEvent = typeof documentEvents.$inferInsert;
export type DocumentTemplate = typeof documentTemplates.$inferSelect;
export type NewDocumentTemplate = typeof documentTemplates.$inferInsert;
export type DocumentWatcher = typeof documentWatchers.$inferSelect;
export type NewDocumentWatcher = typeof documentWatchers.$inferInsert;
export type FormTemplate = typeof formTemplates.$inferSelect;
export type NewFormTemplate = typeof formTemplates.$inferInsert;
export type FormSubmission = typeof formSubmissions.$inferSelect;
export type NewFormSubmission = typeof formSubmissions.$inferInsert;
