import { describe, it, expect } from 'vitest';
import { BriefViewDto } from '@shared/infrastructure/api-client';
import {
  parseBrief,
  parseBriefView,
  parseNode,
  parseOrgTemplate,
  parseStatus,
} from './brief.adapter';

const view: BriefViewDto = {
  brief: {
    briefId: 'b1',
    beroep: 'arts',
    templateId: 't1',
    drafterId: 'demo-drafter',
    status: { tag: 'submitted', submittedBy: 'demo-drafter', submittedAt: '2026-07-01' },
    placeholders: [
      { key: 'naam', label: 'Naam', autoResolvable: true },
      { key: 'code', label: 'Code', autoResolvable: true, fillable: false },
    ],
    sections: [
      {
        sectionKey: 'aanhef',
        title: 'Aanhef',
        required: true,
        blocks: [
          {
            type: 'passage',
            blockId: 'local-1',
            content: { paragraphs: [{ nodes: [{ type: 'placeholder', key: 'naam' }] }] },
            sourcePassageId: 'p1',
            sourceVersion: 2,
            edited: true,
          },
          {
            type: 'freeText',
            blockId: 'local-2',
            content: { paragraphs: [{ nodes: [{ type: 'text', text: 'hoi', marks: ['bold'] }] }] },
          },
        ],
      },
    ],
  },
  availablePassages: [
    {
      passageId: 'p1',
      scope: 'global',
      sectionKey: 'aanhef',
      label: 'Aanhef',
      content: { paragraphs: [{ nodes: [] }] },
      version: 1,
    },
    {
      passageId: 'p-neg-scholing',
      scope: 'global',
      sectionKey: 'kern',
      label: 'Onvoldoende scholing',
      content: { paragraphs: [{ nodes: [{ type: 'text', text: 'x' }] }] },
      version: 1,
      besluit: 'negatief',
      reason: 'onvoldoende_scholing',
    },
  ],
  decisions: {
    canEdit: false,
    canApprove: true,
    canReject: true,
    canSend: false,
    canRevealBigNummer: false,
  },
  orgTemplate: {
    subOrgId: 'cibg-registers',
    orgName: 'CIBG — Registers',
    returnAddress: 'BIG-register\nPostbus 00000\n2500 AA Den Haag',
    footerContact: 'www.bigregister.nl\ninfo@voorbeeld.example',
    footerLegal: 'KvK 00000000',
    signatureName: 'A. de Vries',
    signatureRole: 'Hoofd Registratie',
    signatureClosing: 'Met vriendelijke groet,',
    margins: { topMm: 25, rightMm: 25, bottomMm: 25, leftMm: 25 },
    version: 1,
  },
  caseContext: {
    zorgverlenerNaam: 'Dr. A. (Anna) de Vries',
    bigNummer: '19012345601',
    beroep: 'arts',
    aanvraagReferentie: 'HER-2026-000842',
  },
};

describe('brief.adapter parse boundary', () => {
  it('parses a well-formed view into the domain unions', () => {
    const r = parseBriefView(view);
    expect(r.ok).toBe(true);
    if (!r.ok) return;
    expect(r.value.brief.status).toEqual({
      tag: 'submitted',
      submittedBy: 'demo-drafter',
      submittedAt: '2026-07-01',
    });
    const [passage, free] = r.value.brief.sections[0].blocks;
    expect(passage.type === 'passage' && passage.edited).toBe(true);
    expect(free.type).toBe('freeText');
    expect(r.value.brief.placeholders[1]).toEqual({
      key: 'code',
      label: 'Code',
      autoResolvable: true,
      fillable: false,
    });
    expect(r.value.decisions).toEqual({
      canEdit: false,
      canApprove: true,
      canReject: true,
      canSend: false,
      canRevealBigNummer: false,
    });
    // Guided-drafting tags survive the boundary; the untagged passage has neither.
    expect(r.value.availablePassages[0].besluit).toBeUndefined();
    expect(r.value.availablePassages[1]).toMatchObject({
      besluit: 'negatief',
      reason: 'onvoldoende_scholing',
    });
    expect(r.value.caseContext).toEqual({
      zorgverlenerNaam: 'Dr. A. (Anna) de Vries',
      bigNummer: '19012345601',
      beroep: 'arts',
      aanvraagReferentie: 'HER-2026-000842',
    });
  });

  it('rejects a view whose case context is missing or malformed', () => {
    expect(parseBriefView({ ...view, caseContext: undefined }).ok).toBe(false);
    expect(
      parseBriefView({
        ...view,
        caseContext: { ...view.caseContext!, bigNummer: undefined as never },
      }).ok,
    ).toBe(false);
  });

  it('parses the org template and drops a null logoDocumentId', () => {
    const r = parseOrgTemplate(view.orgTemplate);
    expect(r.ok).toBe(true);
    if (!r.ok) return;
    expect(r.value.orgName).toBe('CIBG — Registers');
    expect(r.value.margins).toEqual({ topMm: 25, rightMm: 25, bottomMm: 25, leftMm: 25 });
    expect('logoDocumentId' in r.value).toBe(false);
  });

  it('rejects a view whose org template is missing or malformed', () => {
    expect(parseBriefView({ ...view, orgTemplate: undefined }).ok).toBe(false);
    expect(parseOrgTemplate({ ...view.orgTemplate, signatureName: undefined }).ok).toBe(false);
    expect(
      parseOrgTemplate({
        ...view.orgTemplate,
        margins: { topMm: 25, rightMm: 25, bottomMm: 25 },
      }).ok,
    ).toBe(false);
  });

  it('rejects a view whose decisions are missing or malformed', () => {
    expect(parseBriefView({ ...view, decisions: undefined as never }).ok).toBe(false);
    expect(
      parseBriefView({ ...view, decisions: { ...view.decisions, canSend: 'yes' as never } }).ok,
    ).toBe(false);
    // The PII-reveal flag (PRD-0002 §5c) is required at the boundary too.
    expect(
      parseBriefView({
        ...view,
        decisions: { ...view.decisions, canRevealBigNummer: undefined as never },
      }).ok,
    ).toBe(false);
  });

  it('narrows node variants and rejects unknown ones', () => {
    expect(parseNode({ type: 'text', text: 'x' })).toEqual({
      ok: true,
      value: { type: 'text', text: 'x' },
    });
    expect(parseNode({ type: 'placeholder', key: 'k' })).toEqual({
      ok: true,
      value: { type: 'placeholder', key: 'k' },
    });
    expect(parseNode({ type: 'lineBreak' })).toEqual({ ok: true, value: { type: 'lineBreak' } });
    expect(parseNode({ type: 'text' }).ok).toBe(false); // missing text
    expect(parseNode({ type: 'bogus' } as never).ok).toBe(false);
  });

  it('rejects a status DTO missing its required fields', () => {
    expect(parseStatus({ tag: 'submitted' }).ok).toBe(false); // no submittedBy/At
    expect(parseStatus({ tag: 'rejected', rejectedBy: 'x', rejectedAt: 't' }).ok).toBe(false); // no comments
    expect(parseStatus({ tag: 'draft' }).ok).toBe(true);
  });

  it('reads section.locked (default false) and paragraph.list', () => {
    const r = parseBrief({
      ...view.brief,
      sections: [
        {
          sectionKey: 'aanhef',
          title: 'Aanhef',
          required: true,
          locked: true,
          blocks: [
            {
              type: 'freeText',
              blockId: 'b1',
              content: {
                paragraphs: [
                  { nodes: [{ type: 'text', text: 'een' }], list: 'bullet' },
                  { nodes: [{ type: 'text', text: 'twee' }], list: 'number' },
                  { nodes: [{ type: 'text', text: 'plat' }] },
                ],
              },
            },
          ],
        },
        { sectionKey: 'kern', title: 'Kern', required: true, blocks: [] }, // no `locked` → false
      ],
    });
    expect(r.ok).toBe(true);
    if (!r.ok) return;
    const [aanhef, kern] = r.value.sections;
    expect(aanhef.locked).toBe(true);
    expect(kern.locked).toBe(false);
    expect(aanhef.blocks[0].content.paragraphs.map((p) => p.list)).toEqual([
      'bullet',
      'number',
      undefined,
    ]);
  });

  it('rejects a library passage with an unknown scope', () => {
    const r = parseBriefView({
      ...view,
      availablePassages: [{ ...view.availablePassages![0], scope: 'bogus' as never }],
    });
    expect(r.ok).toBe(false);
  });

  it('rejects a passage block missing provenance', () => {
    const r = parseBrief({
      ...view.brief,
      sections: [
        {
          sectionKey: 's',
          title: 'S',
          required: false,
          blocks: [{ type: 'passage', blockId: 'b', content: { paragraphs: [] } }],
        },
      ],
    });
    expect(r.ok).toBe(false);
  });
});