/**
 * Estimacion Entity
 * Estimaciones de obra periodicas para subcontratistas
 *
 * @module Estimates
 * @table estimates.estimaciones
 * @ddl schemas/04-estimates-schema-ddl.sql
 */

import {
  Entity,
  PrimaryGeneratedColumn,
  Column,
  CreateDateColumn,
  UpdateDateColumn,
  ManyToOne,
  OneToMany,
  JoinColumn,
  Index,
  Check,
} from 'typeorm';
import { Tenant } from '../../core/entities/tenant.entity';
import { User } from '../../core/entities/user.entity';
import { Fraccionamiento } from '../../construction/entities/fraccionamiento.entity';
import { EstimacionConcepto } from './estimacion-concepto.entity';
import { Amortizacion } from './amortizacion.entity';
import { Retencion } from './retencion.entity';
import { EstimacionWorkflow } from './estimacion-workflow.entity';

export type EstimateStatus = 'draft' | 'submitted' | 'reviewed' | 'approved' | 'invoiced' | 'paid' | 'rejected' | 'cancelled';

@Entity({ schema: 'estimates', name: 'estimaciones' })
@Index(['tenantId', 'estimateNumber'], { unique: true })
@Index(['contratoId', 'sequenceNumber'], { unique: true })
@Index(['tenantId'])
@Index(['contratoId'])
@Index(['fraccionamientoId'])
@Index(['status'])
@Index(['periodStart', 'periodEnd'])
@Check(`"period_end" >= "period_start"`)
export class Estimacion {
  @PrimaryGeneratedColumn('uuid')
  id: string;

  @Column({ name: 'tenant_id', type: 'uuid' })
  tenantId: string;

  @Column({ name: 'contrato_id', type: 'uuid' })
  contratoId: string;

  @Column({ name: 'fraccionamiento_id', type: 'uuid' })
  fraccionamientoId: string;

  @Column({ name: 'estimate_number', type: 'varchar', length: 30 })
  estimateNumber: string;

  @Column({ name: 'period_start', type: 'date' })
  periodStart: Date;

  @Column({ name: 'period_end', type: 'date' })
  periodEnd: Date;

  @Column({ name: 'sequence_number', type: 'integer' })
  sequenceNumber: number;

  @Column({
    type: 'enum',
    enum: ['draft', 'submitted', 'reviewed', 'approved', 'invoiced', 'paid', 'rejected', 'cancelled'],
    enumName: 'estimates.estimate_status',
    default: 'draft',
  })
  status: EstimateStatus;

  @Column({ type: 'decimal', precision: 16, scale: 2, default: 0 })
  subtotal: number;

  @Column({ name: 'advance_amount', type: 'decimal', precision: 16, scale: 2, default: 0 })
  advanceAmount: number;

  @Column({ name: 'retention_amount', type: 'decimal', precision: 16, scale: 2, default: 0 })
  retentionAmount: number;

  @Column({ name: 'tax_amount', type: 'decimal', precision: 16, scale: 2, default: 0 })
  taxAmount: number;

  @Column({ name: 'total_amount', type: 'decimal', precision: 16, scale: 2, default: 0 })
  totalAmount: number;

  @Column({ name: 'submitted_at', type: 'timestamptz', nullable: true })
  submittedAt: Date | null;

  @Column({ name: 'submitted_by', type: 'uuid', nullable: true })
  submittedById: string | null;

  @Column({ name: 'reviewed_at', type: 'timestamptz', nullable: true })
  reviewedAt: Date | null;

  @Column({ name: 'reviewed_by', type: 'uuid', nullable: true })
  reviewedById: string | null;

  @Column({ name: 'approved_at', type: 'timestamptz', nullable: true })
  approvedAt: Date | null;

  @Column({ name: 'approved_by', type: 'uuid', nullable: true })
  approvedById: string | null;

  @Column({ name: 'invoice_id', type: 'uuid', nullable: true })
  invoiceId: string | null;

  @Column({ name: 'invoiced_at', type: 'timestamptz', nullable: true })
  invoicedAt: Date | null;

  @Column({ name: 'paid_at', type: 'timestamptz', nullable: true })
  paidAt: Date | null;

  @Column({ type: 'text', nullable: true })
  notes: string | null;

  @CreateDateColumn({ name: 'created_at', type: 'timestamptz' })
  createdAt: Date;

  @Column({ name: 'created_by', type: 'uuid', nullable: true })
  createdById: string | null;

  @UpdateDateColumn({ name: 'updated_at', type: 'timestamptz', nullable: true })
  updatedAt: Date | null;

  @Column({ name: 'updated_by', type: 'uuid', nullable: true })
  updatedById: string | null;

  @Column({ name: 'deleted_at', type: 'timestamptz', nullable: true })
  deletedAt: Date | null;

  @Column({ name: 'deleted_by', type: 'uuid', nullable: true })
  deletedById: string | null;

  // Relations
  @ManyToOne(() => Tenant)
  @JoinColumn({ name: 'tenant_id' })
  tenant: Tenant;

  @ManyToOne(() => Fraccionamiento)
  @JoinColumn({ name: 'fraccionamiento_id' })
  fraccionamiento: Fraccionamiento;

  @ManyToOne(() => User)
  @JoinColumn({ name: 'submitted_by' })
  submittedBy: User | null;

  @ManyToOne(() => User)
  @JoinColumn({ name: 'reviewed_by' })
  reviewedBy: User | null;

  @ManyToOne(() => User)
  @JoinColumn({ name: 'approved_by' })
  approvedBy: User | null;

  @ManyToOne(() => User)
  @JoinColumn({ name: 'created_by' })
  createdBy: User | null;

  @OneToMany(() => EstimacionConcepto, (c) => c.estimacion)
  conceptos: EstimacionConcepto[];

  @OneToMany(() => Amortizacion, (a) => a.estimacion)
  amortizaciones: Amortizacion[];

  @OneToMany(() => Retencion, (r) => r.estimacion)
  retenciones: Retencion[];

  @OneToMany(() => EstimacionWorkflow, (w) => w.estimacion)
  workflow: EstimacionWorkflow[];
}