import { pgTable, pgView, text, timestamp, integer, varchar } from 'drizzle-orm/pg-core';
import { vendors } from './vendors';
import { eq, sql } from "drizzle-orm";
import { users } from './users';

export const basicContractTemplates = pgTable('basic_contract_templates', {
  id: integer("id").primaryKey().generatedAlwaysAsIdentity(),
  templateName: text('template_name').notNull(),
  status: text('status').notNull().default('ACTIVE'), // ACTIVE, DISPOSED
  fileName: varchar("file_name", { length: 255 }).notNull(),
  filePath: varchar("file_path", { length: 1024 }).notNull(),
  createdAt: timestamp('created_at').defaultNow(),
  updatedAt: timestamp('updated_at').defaultNow(),
  validityPeriod: integer('validity_period'), // 계약 유효기간(개월) - 새로 추가할 필드

});

export const basicContract = pgTable('basic_contract', {
  id: integer("id").primaryKey().generatedAlwaysAsIdentity(),
  templateId: integer('template_id').references(() => basicContractTemplates.id),
  vendorId: integer('vendor_id').references(() => vendors.id),
  requestedBy: integer('requested_by').references(() => users.id),
  status: text('status').notNull().default('PENDING'), // PENDING, COMPLETED, REJECTED
  fileName: varchar("file_name", { length: 255 }).notNull(),
  filePath: varchar("file_path", { length: 1024 }).notNull(),
  createdAt: timestamp('created_at').defaultNow(),
  updatedAt: timestamp('updated_at').defaultNow(),
  completedAt: timestamp('completed_at'), // 계약 체결 완료 날짜 - 새로 추가할 필드

});


// 기본 계약 요청 뷰
export const basicContractView = pgView('basic_contract_view').as((qb) => {
  return qb
    .select({
      // 기본 계약 정보
      id: sql<number>`${basicContract.id}`.as('id'),
      templateId: sql<number | null>`${basicContract.templateId}`.as('template_id'),
      vendorId: sql<number | null>`${basicContract.vendorId}`.as('vendor_id'),
      requestedBy: sql<number | null>`${basicContract.requestedBy}`.as('requested_by'),
      status: sql<string>`${basicContract.status}`.as('basic_contract_status'),
      createdAt: sql<Date>`${basicContract.createdAt}`.as('created_at'),
      updatedAt: sql<Date>`${basicContract.updatedAt}`.as('updated_at'),
      completedAt: sql<Date>`${basicContract.updatedAt}`.as('completed_at'),
      
      // 벤더 정보
      vendorCode: sql<string | null>`${vendors.vendorCode}`.as('vendor_code'),
      vendorEmail: sql<string | null>`${vendors.email}`.as('vendor_email'),
      vendorName: sql<string | null>`${vendors.vendorName}`.as('vendor_name'),
      
      // 사용자 정보
      userName: sql<string | null>`${users.name}`.as('user_name'),
      
      // 템플릿 정보
      templateName: sql<string | null>`${basicContractTemplates.templateName}`.as('template_name'),
      validityPeriod: sql<number | null>`${basicContractTemplates.validityPeriod}`.as('validityPeriod'),

      filePath: sql<string | null>`${basicContractTemplates.filePath}`.as('file_path'),
      fileName: sql<string | null>`${basicContractTemplates.fileName}`.as('file_name'),

      signedFilePath: sql<string | null>`${basicContract.filePath}`.as('signed_file_path'),

    })
    .from(basicContract)
    .leftJoin(vendors, eq(basicContract.vendorId, vendors.id))
    .leftJoin(users, eq(basicContract.requestedBy, users.id))
    .leftJoin(basicContractTemplates, eq(basicContract.templateId, basicContractTemplates.id));
});

// 타입 정의
export type BasicContractTemplate = typeof basicContractTemplates.$inferSelect;
export type BasicContract = typeof basicContract.$inferSelect;
export type BasicContractView = typeof basicContractView.$inferSelect;