package schema

import (
	"time"

	"entgo.io/ent"
	"entgo.io/ent/dialect"
	"entgo.io/ent/dialect/entsql"
	"entgo.io/ent/schema"
	"entgo.io/ent/schema/field"
	"entgo.io/ent/schema/index"
)

// BomItem 产品 BOM 明细（按产品编码维护，同一型号多个工单共用）
type BomItem struct {
	ent.Schema
}

func (BomItem) Annotations() []schema.Annotation {
	return []schema.Annotation{entsql.Annotation{Table: "work_order_bom"}}
}

func (BomItem) Fields() []ent.Field {
	return []ent.Field{
		field.Int("id").Positive(),
		field.String("productCode").Default("").MaxLen(64).Comment("产品编码"),
		field.String("materialCode").MaxLen(64).Comment("物料编码"),
		field.String("materialName").Default("").MaxLen(128),
		field.String("spec").Default("").MaxLen(128),
		field.String("unit").Default("").MaxLen(16),
		// 1 批次(结构件) / 2 序列号(精密件)
		field.String("manageMode").Default("2").MaxLen(10),
		field.Float("unitQty").Default(0).Comment("单台用量"),
		field.Float("lossRate").Default(0).Comment("损耗率%"),
		field.Float("requiredQty").Default(0).Comment("需求总量=总台数*单台*(1+损耗)"),
		field.JSON("serialSns", []string{}).Optional().SchemaType(map[string]string{
			dialect.Postgres: "jsonb",
		}).Comment("精密件SN下发列表(可选)"),
		field.Time("createdAt").Default(time.Now).Immutable(),
	}
}

func (BomItem) Indexes() []ent.Index {
	return []ent.Index{
		index.Fields("productCode"),
		index.Fields("productCode", "materialCode").Unique(),
	}
}