export const previewKey = 'openclasp.preview.v1';

export const previewSession = {

  user: {

    sub: 'local-preview',

    name: 'Local preview',

    email: 'preview@localhost',

  },

};

export type DashboardData = {

  agents: Record<string, any>[];

  projects: Record<string, any>[];

  installations: Record<string, any>[];

  setupRequests: Record<string, any>[];

  publications: Record<string, any>[];

  interactions: Record<string, any>[];

  federatedInteractions: Record<string, any>[];

  liveSessions: Record<string, any>[];

  hostedThreads: Record<string, any>[];

  events: Record<string, any>[];

  conflicts: Record<string, any>[];

  receipts: Record<string, any>[];

  profiles: Record<string, any>[];

  counterpartyBriefs: Record<string, any>[];

  completionReports: Record<string, any>[];

  feedbackRequests: Record<string, any>[];

  interactionFeedback: Record<string, any>[];

  interactionConclusions: Record<string, any>[];

  learningEligibility: Record<string, any>[];

  profileDeltas: Record<string, any>[];

  intelligenceSummaries: Record<string, any>[];

  runtimes: Record<string, any>[];

  accessTokens: Record<string, any>[];

};

export type Settings = {

  displayName: string;

  contributionEnabled: boolean;

  retentionDays: number;

  evidenceSharing: 'never' | 'ask' | 'contract_only';

  rawConversationsStored: false;

};

export const defaultPreviewSettings: Settings = {

  displayName: 'Local operator',

  contributionEnabled: false,

  retentionDays: 30,

  evidenceSharing: 'ask',

  rawConversationsStored: false,

};

const ago = (minutes: number) => new Date(Date.now() - minutes * 60_000).toISOString();

const ahead = (minutes: number) => new Date(Date.now() + minutes * 60_000).toISOString();

export function createPreviewData(): DashboardData {

  return {

    projects: [

      { projectId: 'proj_ops', name: 'Operations', createdAt: ago(21 * 24 * 60) },

      { projectId: 'proj_research', name: 'Research', createdAt: ago(12 * 24 * 60) },

    ],

    agents: [

      {

        agentId: 'agent_atlas',

        projectId: 'proj_research',

        name: 'Atlas Research',

        description: 'Literature review and planning',

        framework: 'Claude',

        agentVersion: '1.4.2',

        agentMode: 'persistent_runtime',

        a2aEndpoint: 'https://atlas.example.com/a2a',

        autoPublish: true,

        autoAcceptPolicy: 'safe_matching',

        autoAcceptTaskCategories: ['research', 'planning'],

        capabilities: ['research', 'planning', 'summarization'],

        limitations: ['no payments'],

        identityMode: 'oauth_installation',

        status: 'active',

        createdAt: ago(12 * 24 * 60),

        updatedAt: ago(8),

        presence: { status: 'online', lastSeenAt: ago(1) },

      },

      {

        agentId: 'agent_harbor',

        projectId: 'proj_ops',

        name: 'Harbor Ops',

        description: 'Incident triage and runbooks',

        framework: 'GPT',

        agentVersion: '2.1.0',

        agentMode: 'temporary_chat',

        autoPublish: false,

        autoAcceptPolicy: 'off',

        autoAcceptTaskCategories: [],

        capabilities: ['ops', 'triage'],

        limitations: ['no production writes'],

        identityMode: 'oauth_installation',

        status: 'active',

        createdAt: ago(21 * 24 * 60),

        updatedAt: ago(180),

        presence: { status: 'offline', lastSeenAt: ago(180) },

      },

    ],

    installations: [

      {

        installationId: 'inst_atlas',

        clientId: 'mcp_atlas',

        agentId: 'agent_atlas',

        projectId: 'proj_research',

        connectedAt: ago(12 * 24 * 60),

        updatedAt: ago(8),

      },

    ],

    setupRequests: [

      {

        requestId: 'setup_lumen',

        clientId: 'mcp_lumen',

        action: 'connect',

        status: 'pending',

        agentName: 'Lumen Writer',

        projectName: 'Content',

        framework: 'Claude',

        agentVersion: '0.9.0',

        autoPublish: true,

        autoAcceptPolicy: 'safe_matching',

        autoAcceptTaskCategories: ['writing', 'editing'],

        capabilities: ['writing', 'editing', 'research'],

        limitations: ['no outbound email'],

        requestedAt: ago(18),

      },

    ],

    publications: [{ agentId: 'agent_atlas', published: true, updatedAt: ago(40) }],

    interactions: [

      {

        interactionId: 'ix_local_brief',

        agentId: 'agent_atlas',

        status: 'completed',

        contract: {

          purpose: 'Produce a source-backed research brief',

          taskCategory: 'research',

        },

        createdAt: ago(240),

        completedAt: ago(220),

      },

    ],

    federatedInteractions: [

      {

        interactionId: 'ix_shared_review',

        initiatorAgentId: 'agent_peer_nova',

        responderAgentId: 'agent_atlas',

        status: 'pending',

        termsHash: '7f3c91a0b2e84d11c6aa09f1d3e8b470',

        contractRevision: 1,

        createdAt: ago(26),

        contract: {

          purpose: 'Review a research brief for scope and sources',

          taskCategory: 'research',

          parties: ['agent_peer_nova', 'agent_atlas'],

        },

        contractRevisions: [

          {

            revisionId: '17c3a10b-2e84-4d11-86aa-09f1d3e8b470',

            revision: 1,

            termsHash: '7f3c91a0b2e84d11c6aa09f1d3e8b470',

            proposedByAgentId: 'agent_peer_nova',

            status: 'proposed',

            acceptances: { agent_peer_nova: { method: 'oauth_installation' } },

          },

        ],

      },

      {

        interactionId: 'ix_shared_ops',

        initiatorAgentId: 'agent_atlas',

        responderAgentId: 'agent_peer_keel',

        status: 'active',

        termsHash: '12ab44c0e91f77d0aa3310bc44ee9012',

        contractRevision: 1,

        createdAt: ago(90),

        contract: {

          purpose: 'Share a sanitized incident timeline',

          taskCategory: 'coordination',

          parties: ['agent_atlas', 'agent_peer_keel'],

        },

        acceptances: {

          agent_peer_keel: { method: 'policy_auto_accept' },

        },

        contractRevisions: [

          {

            revisionId: '22ab44c0-e91f-47d0-aa33-10bc44ee9012',

            revision: 1,

            termsHash: '12ab44c0e91f77d0aa3310bc44ee9012',

            proposedByAgentId: 'agent_atlas',

            status: 'accepted',

            acceptances: {

              agent_atlas: { method: 'oauth_installation' },

              agent_peer_keel: { method: 'policy_auto_accept' },

            },

          },

        ],

      },

    ],

    liveSessions: [

      {

        interactionId: 'ix_shared_ops',

        initiatorAgentId: 'agent_atlas',

        responderAgentId: 'agent_peer_keel',

        status: 'active',

        createdAt: ago(88),

        activatedAt: ago(87),

        expiresAt: ahead(12),

      },

    ],

    hostedThreads: [],

    events: [

      {

        eventId: 'evt_1',

        eventType: 'interaction_started',

        agentId: 'agent_atlas',

        interactionId: 'ix_shared_ops',

        timestamp: ago(88),

        visibility: 'participants',

      },

      {

        eventId: 'evt_2',

        eventType: 'policy_warning',

        agentId: 'agent_harbor',

        interactionId: 'ix_local_brief',

        timestamp: ago(200),

        visibility: 'owner',

      },

      {

        eventId: 'evt_3',

        eventType: 'claim_checked',

        agentId: 'agent_atlas',

        interactionId: 'ix_local_brief',

        timestamp: ago(230),

        visibility: 'participants',

      },

      {

        eventId: 'evt_4',

        eventType: 'session_activated',

        agentId: 'agent_atlas',

        interactionId: 'ix_shared_ops',

        timestamp: ago(87),

        visibility: 'participants',

      },

    ],

    conflicts: [

      {

        conflictId: 'dsp_1',

        interactionId: 'ix_local_brief',

        status: 'open',

        createdAt: ago(190),

      },

    ],

    receipts: [

      {

        receiptId: 'rcpt_1',

        interactionId: 'ix_local_brief',

        agentId: 'agent_atlas',

        outcome: 'success',

        completedAt: ago(220),

      },

      {

        receiptId: 'rcpt_ops_provisional',

        interactionId: 'ix_shared_ops',

        outcome: 'partial',

        unilateral: true,

        provisional: true,

        confidence: 0.42,

        completedAt: ago(12),

      },

    ],

    counterpartyBriefs: [

      {

        briefId: 'brief_1',

        interactionId: 'ix_local_brief',

        recipientAgentId: 'agent_atlas',

        subjectAgentId: 'agent_peer_nova',

        decision: 'CHALLENGE',

        relevantSampleSize: 3,

        historyConfidence: 0.38,

        requirements: [

          { requirement: 'Provide source evidence', status: 'partial', confidence: 0.7 },

        ],

        generatedAt: ago(241),

      },

    ],

    completionReports: [

      {

        reportId: 'report_1',

        interactionId: 'ix_local_brief',

        reportingAgentId: 'agent_atlas',

        counterpartyAgentId: 'agent_peer_nova',

        outcome: 'success',

        summary: 'Research brief delivered with sources and scope notes.',

        criteria: [{ criterion: 'Brief delivered', status: 'met' }],

        completedAt: ago(222),

      },

      {

        reportId: 'report_2',

        interactionId: 'ix_local_brief',

        reportingAgentId: 'agent_peer_nova',

        counterpartyAgentId: 'agent_atlas',

        outcome: 'success',

        summary: 'Received and accepted the requested brief.',

        criteria: [{ criterion: 'Brief delivered', status: 'met' }],

        completedAt: ago(221),

      },

      {

        reportId: 'report_ops_1',

        interactionId: 'ix_shared_ops',

        reportingAgentId: 'agent_atlas',

        counterpartyAgentId: 'agent_peer_keel',

        outcome: 'partial',

        summary:

          'The requester ended after the peer stopped responding before the task was complete.',

        criteria: [{ criterion: 'Timeline shared', status: 'partially_met' }],

        confidence: 0.7,

        completedAt: ago(12),

      },

    ],

    feedbackRequests: [

      {

        requestId: 'feedback_request_1',

        interactionId: 'ix_local_brief',

        reviewerAgentId: 'agent_atlas',

        subjectAgentId: 'agent_peer_nova',

        status: 'submitted',

        requestedAt: ago(221),

        dueAt: ago(197),

      },

      {

        requestId: 'feedback_request_ops_1',

        interactionId: 'ix_shared_ops',

        reviewerAgentId: 'agent_atlas',

        subjectAgentId: 'agent_peer_keel',

        status: 'pending',

        requestedAt: ago(12),

        dueAt: ahead(24 * 60 - 12),

      },

      {

        requestId: 'feedback_request_ops_2',

        interactionId: 'ix_shared_ops',

        reviewerAgentId: 'agent_peer_keel',

        subjectAgentId: 'agent_atlas',

        status: 'pending',

        requestedAt: ago(12),

        dueAt: ahead(24 * 60 - 12),

      },

      {

        requestId: 'feedback_request_2',

        interactionId: 'ix_local_brief',

        reviewerAgentId: 'agent_peer_nova',

        subjectAgentId: 'agent_atlas',

        status: 'submitted',

        requestedAt: ago(221),

        dueAt: ago(197),

      },

    ],

    interactionFeedback: [

      {

        feedbackId: 'feedback_1',

        interactionId: 'ix_local_brief',

        reviewerAgentId: 'agent_atlas',

        subjectAgentId: 'agent_peer_nova',

        ratings: { outcome_satisfaction: 0.9, communication: 0.8, reliability: 0.9 },

        wouldWorkAgain: 'yes',

        submittedAt: ago(219),

      },

    ],

    interactionConclusions: [

      {

        conclusionId: 'conclusion_1',

        interactionId: 'ix_local_brief',

        outcome: 'success',

        consensus: 'bilateral_agreement',

        summary: 'Both agents reported successful delivery and acceptance.',

        criteria: [{ criterion: 'Brief delivered', status: 'met' }],

        averageRatings: { outcome_satisfaction: 0.88, communication: 0.82, reliability: 0.9 },

        generatedAt: ago(218),

      },

      {

        conclusionId: 'conclusion_ops_provisional',

        interactionId: 'ix_shared_ops',

        outcome: 'partial',

        consensus: 'unilateral',

        lifecycle: 'provisional',

        confidence: 0.42,

        missingReportAgentIds: ['agent_peer_keel'],

        pendingFeedbackAgentIds: ['agent_atlas', 'agent_peer_keel'],

        peerReportStatus: 'awaiting',

        summary:

          'Provisional one-sided outcome: the requester ended after the peer stopped responding before the task was complete.',

        criteria: [{ criterion: 'Timeline shared', status: 'partially_met' }],

        reportIds: ['report_ops_1'],

        averageRatings: {},

        generatedAt: ago(11),

      },

    ],

    learningEligibility: [

      {

        decisionId: 'eligibility_1',

        interactionId: 'ix_local_brief',

        eligible: true,

        sampleWeight: 0.87,

        contributionMode: 'local_only',

        structuredDataOnly: true,

        reasons: ['Bilateral reports provide outcome corroboration'],

        decidedAt: ago(218),

      },

    ],

    profileDeltas: [

      {

        deltaId: 'delta_1',

        interactionId: 'ix_local_brief',

        agentId: 'agent_atlas',

        agentVersion: '1.4.2',

        taskCategory: 'research',

        sampleWeight: 0.87,

        dimensionDeltas: { completion: 0.02, evidence: 0.03, communication: -0.01 },

        appliedAt: ago(218),

      },

    ],

    profiles: [

      {

        agentId: 'agent_atlas',

        taskCategory: 'research',

        agentVersion: '1.4.2',

        sampleSize: 14,

        effectiveSampleSize: 10.8,

        dimensionSampleSizes: {

          completion: 10.8,

          acceptance: 8.9,

          specification: 10.1,

          deadline: 9.4,

          communication: 10.8,

          evidence: 9.7,

          scope: 10.2,

          correction: 5.1,

          limitations: 4.4,

          disputes: 10.8,

        },

        updatedAt: ago(218),

        completion: 0.92,

        acceptance: 0.87,

        specification: 0.86,

        scope: 0.84,

        evidence: 0.88,

        communication: 0.79,

        deadline: 0.9,

        correction: 0.82,

        limitations: 0.77,

        disputes: 0.08,

      },

      {

        agentId: 'agent_harbor',

        taskCategory: 'ops',

        agentVersion: '2.1.0',

        sampleSize: 6,

        effectiveSampleSize: 4.1,

        dimensionSampleSizes: {

          completion: 4.1,

          acceptance: 3.2,

          specification: 3.8,

          deadline: 3.5,

          communication: 4.1,

          evidence: 3.9,

          scope: 3.7,

          correction: 1.8,

          limitations: 1.2,

          disputes: 4.1,

        },

        updatedAt: ago(3 * 24 * 60),

        completion: 0.71,

        acceptance: 0.68,

        specification: 0.63,

        scope: 0.66,

        evidence: 0.58,

        communication: 0.74,

        deadline: 0.62,

        correction: 0.69,

        limitations: 0.54,

        disputes: 0.22,

      },

    ],

    intelligenceSummaries: [

      {

        agentId: 'agent_atlas',

        agentVersion: '1.4.2',

        taskCategory: 'research',

        score: 0.86,

        confidence: {

          level: 'high',

          value: 0.72,

          evidenceCount: 14,

          effectiveSampleSize: 10.8,

        },

        trend: { direction: 'improving', delta: 0.018 },

        strengths: [

          { dimension: 'completion', score: 0.92 },

          { dimension: 'deadline', score: 0.9 },

          { dimension: 'evidence', score: 0.88 },

        ],

        risks: [],

        versionStatus: {

          currentVersion: '1.4.2',

          evidenceVersion: '1.4.2',

          status: 'current',

        },

        source: 'private_verified_history',

        updatedAt: ago(218),

      },

      {

        agentId: 'agent_harbor',

        agentVersion: '2.1.0',

        taskCategory: 'ops',

        score: 0.66,

        confidence: {

          level: 'medium',

          value: 0.49,

          evidenceCount: 6,

          effectiveSampleSize: 4.1,

        },

        trend: { direction: 'declining', delta: -0.022 },

        strengths: [{ dimension: 'communication', score: 0.74 }],

        risks: [

          {

            dimension: 'evidence',

            score: 0.58,

            reason: 'Claims are not consistently supported by evidence.',

          },

        ],

        versionStatus: {

          currentVersion: '2.1.0',

          evidenceVersion: '2.1.0',

          status: 'current',

        },

        source: 'private_verified_history',

        updatedAt: ago(3 * 24 * 60),

      },

    ],

    runtimes: [

      {

        agentId: 'agent_atlas',

        endpoint: 'https://atlas.example.com/openclasp',

        a2aEndpoint: 'https://atlas.example.com/a2a',

        status: 'verified',

        verifiedAt: ago(40),

      },

    ],

    accessTokens: [],

  };

}

export function applyPreviewRequest(

  data: DashboardData,

  settings: Settings,

  path: string,

  init?: RequestInit,

): { data: DashboardData; settings: Settings; result: unknown } {

  const method = (init?.method ?? 'GET').toUpperCase();

  const body = init?.body ? (JSON.parse(String(init.body)) as Record<string, unknown>) : {};

  if (path === '/v0.1/dashboard' && method === 'GET') return { data, settings, result: data };

  if (path === '/v0.1/settings' && method === 'GET') return { data, settings, result: settings };

  if (path === '/v0.1/settings' && method === 'PUT') {

    const next = {

      ...settings,

      ...body,

      rawConversationsStored: false as const,

    } as Settings;

    return { data, settings: next, result: next };

  }

  if (path === '/v0.1/provider-connections' && method === 'POST') {

    const suffix = crypto.randomUUID();

    const projectName = String(body.projectName ?? 'Hosted agents');

    const existingProject = data.projects.find(

      (project) => String(project.name).toLowerCase() === projectName.toLowerCase(),

    );

    const project = existingProject ?? {

      projectId: `project_${suffix}`,

      name: projectName,

      createdAt: new Date().toISOString(),

    };

    const agentId = `agent_${suffix}`;

    const createdAt = new Date();

    const tokenId = suffix.replaceAll('-', '').slice(0, 16);

    const provider = body.provider === 'custom' ? 'custom' : 'botpress';

    const agent = {

      agentId,

      projectId: project.projectId,

      name: String(body.agentName ?? 'Botpress agent'),

      description: String(body.description ?? ''),

      framework: provider === 'botpress' ? 'Botpress' : 'Custom runtime',

      agentVersion: '1.0.0',

      agentMode: 'persistent_runtime',

      transport: 'direct_a2a',

      autoPublish: false,

      autoAcceptPolicy: 'off',

      autoAcceptTaskCategories: [],

      capabilities: body.capabilities ?? [],

      limitations: body.limitations ?? [],

      identityMode: 'owner_managed',

      status: 'active',

      createdAt: createdAt.toISOString(),

      updatedAt: createdAt.toISOString(),

      presence: { status: 'offline' },

    };

    const accessToken = {

      tokenId,

      token: `oc_at_${tokenId}.preview_agent_access_token_secret_not_for_production`,

      agentId,

      name: provider === 'botpress' ? 'Botpress' : 'Custom runtime',

      scopes: ['mcp:access', 'runtime:connect'],

      createdAt: createdAt.toISOString(),

      expiresAt: new Date(

        createdAt.getTime() + Number(body.expiresInDays ?? 365) * 86_400_000,

      ).toISOString(),

    };

    return {

      data: {

        ...data,

        projects: existingProject ? data.projects : [...data.projects, project],

        agents: [...data.agents, agent],

        accessTokens: [accessToken, ...data.accessTokens],

      },

      settings,

      result: { agent, project, provider, accessToken },

    };

  }

  const automation = path.match(/^\/v0\.1\/agents\/([^/]+)\/automation$/);

  if (automation && method === 'PUT') {

    const agentId = decodeURIComponent(automation[1] ?? '');

    const next = {

      ...data,

      agents: data.agents.map((agent) =>

        agent.agentId === agentId

          ? {

              ...agent,

              autoPublish: Boolean(body.autoPublish),

              autoAcceptPolicy: body.autoAcceptPolicy,

              autoAcceptTaskCategories: body.autoAcceptTaskCategories,

            }

          : agent,

      ),

      publications: body.autoPublish

        ? [

            ...data.publications.filter((item) => item.agentId !== agentId),

            { agentId, published: true, updatedAt: new Date().toISOString() },

          ]

        : data.publications.filter((item) => item.agentId !== agentId),

    };

    return { data: next, settings, result: { ok: true } };

  }

  const runtime = path.match(/^\/v0\.1\/agents\/([^/]+)\/runtime$/);

  if (runtime && method === 'PUT') {

    const agentId = decodeURIComponent(runtime[1] ?? '');

    const endpoint = String(body.endpoint ?? '');

    const record = {

      agentId,

      endpoint,

      a2aEndpoint: endpoint,

      status: 'verified',

      verifiedAt: new Date().toISOString(),

    };

    return {

      data: {

        ...data,

        runtimes: [...data.runtimes.filter((item) => item.agentId !== agentId), record],

      },

      settings,

      result: record,

    };

  }

  const tokenCollection = path.match(/^\/v0\.1\/agents\/([^/]+)\/access-tokens$/);

  if (tokenCollection && method === 'POST') {

    const agentId = decodeURIComponent(tokenCollection[1] ?? '');

    const tokenId = crypto.randomUUID().replaceAll('-', '').slice(0, 16);

    const createdAt = new Date();

    const expiresInDays = Number(body.expiresInDays ?? 365);

    const record = {

      tokenId,

      agentId,

      name: String(body.name ?? 'Hosted provider'),

      scopes: ['mcp:access', 'runtime:connect'],

      createdAt: createdAt.toISOString(),

      expiresAt: new Date(createdAt.getTime() + expiresInDays * 86_400_000).toISOString(),

    };

    return {

      data: { ...data, accessTokens: [record, ...data.accessTokens] },

      settings,

      result: {

        ...record,

        token: `oc_at_${tokenId}.preview_agent_access_token_secret_not_for_production`,

      },

    };

  }

  const tokenItem = path.match(/^\/v0\.1\/agents\/([^/]+)\/access-tokens\/([^/]+)$/);

  if (tokenItem && method === 'DELETE') {

    const tokenId = decodeURIComponent(tokenItem[2] ?? '');

    return {

      data: {

        ...data,

        accessTokens: data.accessTokens.map((token) =>

          token.tokenId === tokenId ? { ...token, revokedAt: new Date().toISOString() } : token,

        ),

      },

      settings,

      result: { tokenId, revokedAt: new Date().toISOString() },

    };

  }

  const agentDelete = path.match(/^\/v0\.1\/agents\/([^/]+)$/);

  if (agentDelete && method === 'DELETE') {

    const agentId = decodeURIComponent(agentDelete[1] ?? '');

    return {

      data: {

        ...data,

        agents: data.agents.filter((item) => item.agentId !== agentId),

        publications: data.publications.filter((item) => item.agentId !== agentId),

        runtimes: data.runtimes.filter((item) => item.agentId !== agentId),

        installations: data.installations.filter((item) => item.agentId !== agentId),

        accessTokens: data.accessTokens.filter((item) => item.agentId !== agentId),

      },

      settings,

      result: { agentId, deleted: true },

    };

  }

  if (runtime && method === 'DELETE') {

    const agentId = decodeURIComponent(runtime[1] ?? '');

    return {

      data: {

        ...data,

        runtimes: data.runtimes.filter((item) => item.agentId !== agentId),

      },

      settings,

      result: { agentId, status: 'disabled' },

    };

  }

  const federated = path.match(/^\/v0\.1\/federated-interactions\/([^/]+)\/respond$/);

  if (federated && method === 'POST') {

    const interactionId = decodeURIComponent(federated[1] ?? '');

    const decision = body.decision === 'accept' ? 'active' : 'rejected';

    return {

      data: {

        ...data,

        federatedInteractions: data.federatedInteractions.map((item) =>

          item.interactionId === interactionId ? { ...item, status: decision } : item,

        ),

      },

      settings,

      result: { ok: true },

    };

  }

  const onboarding = path.match(/^\/v0\.1\/onboarding\/([^/]+)\/(approve|reject)$/);

  if (onboarding && method === 'POST') {

    const requestId = decodeURIComponent(onboarding[1] ?? '');

    const decision = onboarding[2] === 'approve' ? 'approved' : 'rejected';

    return {

      data: {

        ...data,

        setupRequests: data.setupRequests.map((item) =>

          item.requestId === requestId

            ? { ...item, status: decision, decidedAt: new Date().toISOString() }

            : item,

        ),

      },

      settings,

      result: { ok: true },

    };

  }

  throw new Error('Preview cannot perform this action');

}

export function isPreviewActive() {

  return (

    import.meta.env.DEV &&

    (sessionStorage.getItem(previewKey) === '1' ||

      new URLSearchParams(location.search).get('preview') === '1')

  );

}

export function enablePreview() {

  sessionStorage.setItem(previewKey, '1');

}

export function disablePreview() {

  sessionStorage.removeItem(previewKey);

}