import { describe, expect, it } from 'vitest';

import {

  buildCounterpartyBrief,

  createIdentity,

  FixtureFactCheckProvider,

  TrustEngine,

} from '@openclasp/core';

import {

  canonicalHash,

  PublicAgentCardSchema,

  signNamed,

  type InteractionContract,

  type Receipt,

} from '@openclasp/protocol';

import { createSignedEvent } from '@openclasp/sdk';

describe('general assurance behavior', () => {

  it('requires every contract party to sign before the agreement is active', () => {

    const engine = new TrustEngine();

    const first = createIdentity({

      agentId: 'agent:first',

      operatorRef: 'operator:a',

      capabilities: ['coordinate'],

    });

    const second = createIdentity({

      agentId: 'agent:second',

      operatorRef: 'operator:b',

      capabilities: ['coordinate'],

    });

    engine.registerAgent(first.identity);

    engine.registerAgent(second.identity);

    const unsigned: InteractionContract = {

      protocolVersion: '0.1',

      interactionId: crypto.randomUUID(),

      purpose: 'Coordinate a task',

      parties: [first.identity.agentId, second.identity.agentId],

      taskCategory: 'coordination',

      requestedOutcome: 'Agreed plan',

      successCriteria: ['Plan accepted'],

      allowedActions: ['coordinate'],

      prohibitedActions: [],

      allowedData: ['public'],

      prohibitedData: ['private'],

      evidenceRequirements: [],

      delegationRules: [],

      humanApprovalRequirements: [],

      factCheckingPolicy: 'important_claims',

      mediationPolicy: 'mutual_consent',

      retentionDays: 30,

      completionConditions: ['plan_delivered'],

      cancellationConditions: ['either_party'],

      signatures: {},

    };

    const oneSignature = signNamed(

      unsigned as unknown as Record<string, unknown>,

      first.identity.agentId,

      first.keyPair,

    ) as unknown as InteractionContract;

    expect(() => engine.saveContract(oneSignature)).toThrow('every party');

    const complete = signNamed(

      oneSignature as unknown as Record<string, unknown>,

      second.identity.agentId,

      second.keyPair,

    ) as unknown as InteractionContract;

    expect(engine.saveContract(complete).interactionId).toBe(unsigned.interactionId);

  });

  it('does not fact-check opinions as objective truth', async () => {

    const provider = new FixtureFactCheckProvider();

    expect((await provider.check('I think green is the best color')).status).toBe(

      'not_fact_checkable',

    );

  });

  it('verifies a receipt without recording it', () => {

    const engine = new TrustEngine();

    const agent = createIdentity({

      agentId: 'agent:receipt',

      operatorRef: 'operator:a',

      capabilities: ['work'],

    });

    engine.registerAgent(agent.identity);

    const base: Receipt = {

      receiptId: crypto.randomUUID(),

      interactionId: crypto.randomUUID(),

      participants: [agent.identity.agentId],

      agentVersions: { [agent.identity.agentId]: '1.0.0' },

      contractHash: 'contract',

      startedAt: new Date(Date.now() - 1000).toISOString(),

      completedAt: new Date().toISOString(),

      outcome: 'success',

      commitmentsFulfilled: ['done'],

      commitmentsMissed: [],

      evidenceHashes: [],

      policyWarnings: [],

      policyViolations: [],

      disputeStatus: 'none',

      delegationChainHash: 'none',

      unilateral: false,

      signatures: {},

    };

    const signed = signNamed(

      base as unknown as Record<string, unknown>,

      agent.identity.agentId,

      agent.keyPair,

    ) as unknown as Receipt;

    expect(engine.verifyReceipt(signed).receiptId).toBe(base.receiptId);

    expect(engine.receipts.size).toBe(0);

  });

  it('requires opt-in and strips payloads from network contributions', () => {

    const engine = new TrustEngine();

    const agent = createIdentity({

      agentId: 'agent:a',

      operatorRef: 'operator:a',

      capabilities: ['chat'],

    });

    engine.registerAgent(agent.identity);

    const event = createSignedEvent(

      {

        protocolVersion: '0.1',

        eventId: crypto.randomUUID(),

        interactionId: crypto.randomUUID(),

        eventType: 'claim',

        agentId: agent.identity.agentId,

        agentVersion: '1.0.0',

        timestamp: new Date().toISOString(),

        visibility: 'network_aggregate',

        provenance: 'observed',

        payload: { rawMessage: 'private conversation', claim: 'secret' },

      },

      agent.keyPair,

    );

    expect(engine.networkContribution(event)).toBeNull();

    engine.setContributionConsent(agent.identity.agentId, true);

    const contribution = engine.networkContribution(event);

    expect(contribution).not.toHaveProperty('payload');

    expect(JSON.stringify(contribution)).not.toContain('private conversation');

  });

  it('requires mutual mediation consent', () => {

    const engine = new TrustEngine();

    const conflict = engine.createConflict({

      interactionId: crypto.randomUUID(),

      issue: 'ambiguous requirement',

      participants: ['a', 'b'],

      positions: {},

      evidence: [],

      contractClauses: [],

      missingInformation: [],

      possibleResolutions: ['clarify'],

    });

    engine.permitMediation(conflict.conflictId, 'a');

    expect(() => engine.resolveConflict(conflict.conflictId, 'clarified')).toThrow('Mutual');

    engine.permitMediation(conflict.conflictId, 'b');

    expect(engine.resolveConflict(conflict.conflictId, 'clarified').status).toBe('resolved');

  });

  it('builds a private brief against the actual contract requirements', () => {

    const interactionId = crypto.randomUUID();

    const contract: InteractionContract = {

      protocolVersion: '0.1',

      interactionId,

      purpose: 'Find an engineering role',

      parties: ['agent:candidate', 'agent:recruiter'],

      taskCategory: 'recruiting',

      requestedOutcome: 'Available backend software engineering positions',

      successCriteria: ['At least one matching backend role'],

      allowedActions: ['recruiting'],

      prohibitedActions: [],

      allowedData: ['public'],

      prohibitedData: ['private'],

      evidenceRequirements: ['Job description link'],

      delegationRules: [],

      humanApprovalRequirements: [],

      factCheckingPolicy: 'important_claims',

      mediationPolicy: 'mutual_consent',

      retentionDays: 30,

      completionConditions: ['positions returned'],

      cancellationConditions: ['either party'],

      signatures: {},

    };

    const subject = PublicAgentCardSchema.parse({

      protocolVersion: '0.1',

      agentId: 'agent:recruiter',

      name: 'Recruiter',

      description: 'Recruiting assistant for marketing roles',

      framework: 'Botpress',

      agentVersion: '1.0.0',

      capabilities: ['recruiting'],

      limitations: ['no backend recruitment'],

      assurance: 'oauth_authenticated',

      transports: [],

      cardUrl: 'https://openclasp.example/agents/recruiter/card.json',

      a2aAgentCardUrl: 'https://openclasp.example/agents/recruiter/a2a-agent-card.json',

      extensionUri: 'https://openclasp.example/extensions/trust/v0.1',

      publishedAt: '2026-08-29T00:00:00.000Z',

      updatedAt: '2026-08-29T00:00:00.000Z',

    });

    const brief = buildCounterpartyBrief({

      interactionId,

      contractHash: canonicalHash(contract),

      contract,

      recipientAgentId: 'agent:candidate',

      subject,

      historyInsights: [

        {

          code: 'limited_verified_history',

          severity: 'caution',

          message: 'No eligible history exists.',

          evidenceReferences: [],

          requirementReferences: [],

        },

      ],

      relevantSampleSize: 0,

      historyConfidence: 0,

      generatedAt: '2026-08-29T00:00:00.000Z',

      expiresAt: '2026-08-29T01:00:00.000Z',

    });

    expect(brief.decision).toBe('CHALLENGE');

    expect(brief.requirements).toEqual(

      expect.arrayContaining([

        expect.objectContaining({ requirementId: 'task-category', status: 'match' }),

        expect.objectContaining({ requirementId: 'requested-outcome', status: 'mismatch' }),

      ]),

    );

    expect(brief.insights[0]?.requirementReferences.length).toBeGreaterThan(0);

  });

});