Moved to a "cleaner" directory structure

ref #11

src/models/entities/Scan.ts

@@ -0,0 +1,54 @@
+import { PrimaryGeneratedColumn, Column, ManyToOne, Entity, TableInheritance } from "typeorm";
+import {
+  IsBoolean,
+  IsInt,
+  IsNotEmpty,
+  IsOptional,
+  IsPositive,
+} from "class-validator";
+import { Runner } from "./Runner";
+
+/**
+ * Defines the scan interface.
+*/
+@Entity()
+@TableInheritance({ column: { name: "type", type: "varchar" } })
+export abstract class Scan {
+  /**
+   * Autogenerated unique id (primary key).
+   */
+  @PrimaryGeneratedColumn()
+  @IsOptional()
+  @IsInt()
+  id: number;
+
+  /**
+   * The associated runner.
+   */
+  @IsNotEmpty()
+  @ManyToOne(() => Runner, runner => runner.scans, { nullable: true })
+  runner: Runner;
+
+  /**
+   * The scan's distance in meters.
+   */
+  @IsInt()
+  @IsPositive()
+  abstract distance: number;
+
+  /**
+ * Is the scan valid (for fraud reasons).
+ * Default: true
+ */
+  @Column()
+  @IsBoolean()
+  valid: boolean = true;
+
+  /**
+   * seconds since last scan
+   */
+  @IsInt()
+  @IsOptional()
+  secondsSinceLastScan: number;
+
+}