wip

packages/automation/domain/value-objects/SessionState.ts

@@ -0,0 +1,96 @@
+export type SessionStateValue =
+  | 'PENDING'
+  | 'IN_PROGRESS'
+  | 'PAUSED'
+  | 'COMPLETED'
+  | 'FAILED'
+  | 'STOPPED_AT_STEP_18'
+  | 'AWAITING_CHECKOUT_CONFIRMATION'
+  | 'CANCELLED';
+
+const VALID_STATES: SessionStateValue[] = [
+  'PENDING',
+  'IN_PROGRESS',
+  'PAUSED',
+  'COMPLETED',
+  'FAILED',
+  'STOPPED_AT_STEP_18',
+  'AWAITING_CHECKOUT_CONFIRMATION',
+  'CANCELLED',
+];
+
+const VALID_TRANSITIONS: Record<SessionStateValue, SessionStateValue[]> = {
+  PENDING: ['IN_PROGRESS', 'FAILED'],
+  IN_PROGRESS: ['PAUSED', 'COMPLETED', 'FAILED', 'STOPPED_AT_STEP_18', 'AWAITING_CHECKOUT_CONFIRMATION'],
+  PAUSED: ['IN_PROGRESS', 'FAILED'],
+  COMPLETED: [],
+  FAILED: [],
+  STOPPED_AT_STEP_18: [],
+  AWAITING_CHECKOUT_CONFIRMATION: ['COMPLETED', 'CANCELLED', 'FAILED'],
+  CANCELLED: [],
+};
+
+export class SessionState {
+  private readonly _value: SessionStateValue;
+
+  private constructor(value: SessionStateValue) {
+    this._value = value;
+  }
+
+  static create(value: SessionStateValue): SessionState {
+    if (!VALID_STATES.includes(value)) {
+      throw new Error('Invalid session state');
+    }
+    return new SessionState(value);
+  }
+
+  get value(): SessionStateValue {
+    return this._value;
+  }
+
+  equals(other: SessionState): boolean {
+    return this._value === other._value;
+  }
+
+  isPending(): boolean {
+    return this._value === 'PENDING';
+  }
+
+  isInProgress(): boolean {
+    return this._value === 'IN_PROGRESS';
+  }
+
+  isCompleted(): boolean {
+    return this._value === 'COMPLETED';
+  }
+
+  isFailed(): boolean {
+    return this._value === 'FAILED';
+  }
+
+  isStoppedAtStep18(): boolean {
+    return this._value === 'STOPPED_AT_STEP_18';
+  }
+
+  isAwaitingCheckoutConfirmation(): boolean {
+    return this._value === 'AWAITING_CHECKOUT_CONFIRMATION';
+  }
+
+  isCancelled(): boolean {
+    return this._value === 'CANCELLED';
+  }
+
+  canTransitionTo(targetState: SessionState): boolean {
+    const allowedTransitions = VALID_TRANSITIONS[this._value];
+    return allowedTransitions.includes(targetState._value);
+  }
+
+  isTerminal(): boolean {
+    return (
+      this._value === 'COMPLETED' ||
+      this._value === 'FAILED' ||
+      this._value === 'STOPPED_AT_STEP_18' ||
+      this._value === 'CANCELLED'
+    );
+  }
+}