import { Faction } from '@staratlas/dev-profile-faction';
import { describe, expect, it } from 'vitest';

import { resolveEffectiveRiskZone } from '../src/effectiveRisk';
import { SafetyStatus, type RiskZone } from '../src/generated';

describe('effective region risk', () => {
  it('preserves immutable authored Low Risk home territory', () => {
    const riskZone: RiskZone = {
      __kind: 'LowRiskZone',
      fields: [Faction.Mud],
    };

    expect(
      resolveEffectiveRiskZone({
        owner: Faction.Oni,
        riskZone,
        safetyStatus: SafetyStatus.Border,
      }),
    ).toBe(riskZone);
  });

  it('promotes a captured secured region to effective Low Risk', () => {
    expect(
      resolveEffectiveRiskZone({
        owner: Faction.Oni,
        riskZone: { __kind: 'HighRiskZone' },
        safetyStatus: SafetyStatus.Safe,
      }),
    ).toEqual({ __kind: 'LowRiskZone', fields: [Faction.Oni] });
  });

  it('falls back to the authored tier when the border is not secured', () => {
    expect(
      resolveEffectiveRiskZone({
        owner: Faction.Oni,
        riskZone: { __kind: 'MediumRiskZone' },
        safetyStatus: SafetyStatus.Border,
      }),
    ).toEqual({ __kind: 'MediumRiskZone' });
  });

  it('never promotes an unaligned region', () => {
    expect(
      resolveEffectiveRiskZone({
        owner: Faction.Unaligned,
        riskZone: { __kind: 'MediumRiskZone' },
        safetyStatus: SafetyStatus.Safe,
      }),
    ).toEqual({ __kind: 'MediumRiskZone' });
  });
});