function buildToolDescription() {
  var snapshot = wizardCurrentVersion && wizardCurrentVersion.snapshot
    ? wizardCurrentVersion.snapshot
    : wizardCurrentVersion;
  var existing = snapshot && snapshot.tool_description ? snapshot.tool_description : {};

  return {
    title: textValue('tool-title') || textValue('tool-display-name') || textValue('tool-name'),
    description: textValue('tool-description'),
    tags: Array.isArray(existing.tags) ? existing.tags.slice() : [],
    examples: Array.isArray(existing.examples) ? existing.examples.slice() : [],
  };
}

function buildWizardState() {
  return {
    input_sample: parseStructuredText(textValue('wizard-input-sample')),
    output_sample: parseStructuredText(textValue('wizard-output-sample')),
    test_input: parseStructuredText(textValue('wizard-test-input')),
  };
}

function collectWizardPayload() {
  var name = textValue('tool-name');
  if (!name) throw new Error(tKey('wizard.error.tool_name'));

  var inputSchemaValue = parseStructuredText(textValue('tool-input-schema'));
  var outputSchemaValue = parseStructuredText(textValue('tool-output-schema'));
  var inputMappingValue = parseStructuredText(textValue('tool-input-mapping'));
  var outputMappingValue = parseStructuredText(textValue('tool-output-mapping'));

  return {
    name: name,
    display_name: textValue('tool-display-name') || name,
    category: 'general',
    protocol: wizardProtocol,
    target: buildTarget(),
    input_schema: convertJsonSchemaToCrankSchema(inputSchemaValue, []),
    output_schema: convertJsonSchemaToCrankSchema(outputSchemaValue, []),
    input_mapping: buildMappingSet(inputMappingValue, 'input'),
    output_mapping: buildMappingSet(outputMappingValue, 'output'),
    execution_config: parseExecutionConfig(textValue('tool-exec-config')),
    tool_description: buildToolDescription(),
    wizard_state: buildWizardState(),
  };
}

async function saveOperation(stayOnPage) {
  try {
    await persistCurrentDraft(stayOnPage);
  } catch (error) {
    if (window.CrankUi) {
      window.CrankUi.error(error.message || tKey('wizard.error.save'), tKey('wizard.error.save_title'));
    }
  }
}

async function loadOperationForEdit() {
  if (!wizardWorkspaceId || !wizardEditId) return;
  var detail = await window.CrankApi.getOperation(wizardWorkspaceId, wizardEditId);
  wizardProtocol = detail.protocol || 'rest';
  await loadWizardPanels([3]);
  var draftVersion = await window.CrankApi.getOperationVersion(
    wizardWorkspaceId,
    wizardEditId,
    detail.draft_version_ref.version
  );
  wizardCurrentOperation = detail;
  wizardCurrentVersion = draftVersion;
  prefillWizardFromEdit(detail, draftVersion);
  renderAgentFacingPreview();
}

function setEditModePresentation() {
  var progressLabel = document.querySelector('.progress-label');
  if (progressLabel) progressLabel.textContent = tKey('wizard.progress.edit');
  renderSidebarBrand('edit');
}

function selectProtocol(protocol) {
  wizardProtocol = protocol || 'rest';
  document.querySelectorAll('.protocol-card').forEach(function(card) {
    var proto = card.dataset.protocol || 'rest';
    var selected = proto === wizardProtocol;
    card.classList.toggle('selected', selected);
    card.setAttribute('aria-checked', selected ? 'true' : 'false');
  });
  var s3name = document.getElementById('sidebar-step-3-name');
  if (s3name) {
    var step3Labels = window.CrankWizardState.step3Labels();
    s3name.textContent = step3Labels[wizardProtocol] || tKey('wizard.step3.rest.label');
  }
  updateWizardProtocolVisibility();
}

function bindWizardLiveActions() {
  bindLiveAction('wizard-upload-input-sample', tKey('wizard.busy.input_sample'), uploadInputSampleFromWizard);
  bindLiveAction('wizard-upload-output-sample', tKey('wizard.busy.output_sample'), uploadOutputSampleFromWizard);
  bindLiveAction('wizard-generate-draft', tKey('wizard.busy.generate'), generateDraftFromWizard);
  bindLiveAction('wizard-run-test', tKey('wizard.busy.test'), runWizardTest);
  bindClick('wizard-copy-test-response', copyTestResponseToOutputSample);
  bindClick('wizard-copy-agent-preview', copyAgentFacingPreview);
  bindLiveAction('wizard-export-yaml', tKey('wizard.busy.export_yaml'), exportWizardYaml);
  bindLiveAction('wizard-import-yaml', tKey('wizard.busy.import_yaml'), importWizardYaml);
  bindLiveAction('wizard-publish-operation', tKey('wizard.busy.publish'), publishWizardOperation);
  bindClick('wizard-import-yaml-file-trigger', function() {
    var input = document.getElementById('wizard-import-yaml-file');
    if (input) input.click();
  });

  var yamlInput = document.getElementById('wizard-import-yaml-file');
  if (yamlInput) yamlInput.addEventListener('change', handleImportYamlFileSelection);
  bindAgentFacingPreview();
}

function bindClick(id, handler) {
  var element = document.getElementById(id);
  if (!element) return;
  element.addEventListener('click', function(event) {
    event.preventDefault();
    handler();
  });
}

function bindLiveAction(id, busyLabel, handler) {
  var element = document.getElementById(id);
  if (!element) return;
  element.addEventListener('click', function(event) {
    event.preventDefault();
    runWizardLiveAction(element, busyLabel, handler);
  });
}

async function runWizardLiveAction(button, busyLabel, handler) {
  if (!button || button.dataset.busy === 'true') {
    return;
  }

  var originalLabel = button.textContent;
  button.dataset.busy = 'true';
  button.disabled = true;
  button.classList.add('is-busy');
  button.textContent = busyLabel;

  try {
    await handler();
  } catch (error) {
    showWizardLiveStatus(
      tKey('wizard.live.failed_title'),
      error && error.message ? error.message : tKey('wizard.live.failed_body'),
      true
    );
    if (window.CrankUi) {
      window.CrankUi.error(
        error && error.message ? error.message : tKey('wizard.live.failed_body'),
        tKey('wizard.live.failed_title')
      );
    }
  } finally {
    button.dataset.busy = 'false';
    button.disabled = false;
    button.classList.remove('is-busy');
    button.textContent = originalLabel;
  }
}

function updateWizardProtocolVisibility() {
  if (typeof window.renderEditionCapabilityHints === 'function'
      && window.CrankWizardState
      && typeof window.CrankWizardState.currentEditionCapabilities === 'function') {
    window.renderEditionCapabilityHints(window.CrankWizardState.currentEditionCapabilities());
  }
}

function showWizardLiveStatus(title, text, isError) {
  var root = document.getElementById('wizard-live-status');
  var titleEl = document.getElementById('wizard-live-status-title');
  var textEl = document.getElementById('wizard-live-status-text');
  if (!root || !titleEl || !textEl) return;
  titleEl.textContent = title;
  textEl.textContent = text;
  root.hidden = false;
  root.classList.toggle('is-error', !!isError);
  root.classList.toggle('is-success', !isError);
}

function currentDraftVersion() {
  if (wizardCurrentOperation && wizardCurrentOperation.draft_version_ref) {
    return wizardCurrentOperation.draft_version_ref.version;
  }
  if (wizardCurrentOperation && wizardCurrentOperation.current_draft_version) {
    return wizardCurrentOperation.current_draft_version;
  }
  if (wizardCurrentVersion && wizardCurrentVersion.version) {
    return wizardCurrentVersion.version;
  }
  return 1;
}

function updateOperationPayload(payload) {
  return {
    display_name: payload.display_name,
    category: payload.category,
    target: payload.target,
    input_schema: payload.input_schema,
    output_schema: payload.output_schema,
    input_mapping: payload.input_mapping,
    output_mapping: payload.output_mapping,
    execution_config: payload.execution_config,
    tool_description: payload.tool_description,
    wizard_state: payload.wizard_state,
  };
}

async function refreshCurrentOperationState() {
  if (!wizardWorkspaceId || !wizardEditId) return null;
  var detail = await window.CrankApi.getOperation(wizardWorkspaceId, wizardEditId);
  var versionNumber = detail.draft_version_ref
    ? detail.draft_version_ref.version
    : detail.current_draft_version;
  var versionDocument = await window.CrankApi.getOperationVersion(
    wizardWorkspaceId,
    wizardEditId,
    versionNumber
  );
  wizardCurrentOperation = detail;
  wizardCurrentVersion = versionDocument;
  updateWizardProtocolVisibility();
  return {
    detail: detail,
    version: versionDocument,
  };
}

async function persistCurrentDraft(stayOnPage) {
  if (!wizardWorkspaceId) {
    throw new Error(tKey('wizard.error.no_workspace'));
  }

  var payload = collectWizardPayload();
  var response;
  var createdNow = false;

  if (wizardMode === 'edit' && wizardEditId) {
    response = await window.CrankApi.updateOperation(
      wizardWorkspaceId,
      wizardEditId,
      updateOperationPayload(payload)
    );
  } else {
    response = await window.CrankApi.createOperation(wizardWorkspaceId, payload);
    createdNow = true;
    wizardEditId = response.operation_id;
    wizardMode = 'edit';
    history.replaceState(
      {},
      '',
      window.location.pathname + '?mode=edit&operationId=' + encodeURIComponent(wizardEditId)
    );
    setEditModePresentation();
    _doGoToStep(currentStep);
    var toolNameInput = document.getElementById('tool-name');
    if (toolNameInput) toolNameInput.disabled = true;
  }

  await refreshCurrentOperationState();

  if (stayOnPage) {
    var saveDraftBtn = document.querySelector('.btn-save-draft');
    if (saveDraftBtn) {
      var label = saveDraftBtn.textContent;
      saveDraftBtn.textContent = tKey('wizard.save.saved');
      setTimeout(function() {
        saveDraftBtn.textContent = label;
      }, 1400);
    }
  }

  showWizardLiveStatus(
    createdNow ? tKey('wizard.save.created') : tKey('wizard.save.updated'),
    tKey('wizard.save.body')
  );
  return response;
}

function safeStringify(value) {
  if (value === null || value === undefined) return '';
  if (typeof value === 'string') return value;
  return JSON.stringify(value, null, 2);
}

function downloadTextFile(fileName, content, mimeType) {
  var blob = new Blob([content], { type: mimeType || 'text/plain;charset=utf-8' });
  var url = URL.createObjectURL(blob);
  var link = document.createElement('a');
  link.href = url;
  link.download = fileName;
  link.click();
  URL.revokeObjectURL(url);
}

function setTextareaValue(id, value) {
  var element = document.getElementById(id);
  if (!element) return;
  element.value = safeStringify(value);
}

function setTextContent(id, value) {
  var element = document.getElementById(id);
  if (!element) return;
  element.textContent = value || '';
}

function structuredTextOrFallback(id, fallback) {
  try {
    var value = parseStructuredText(textValue(id));
    if (value === null || value === undefined || value === '') return fallback;
    return value;
  } catch (_error) {
    return fallback;
  }
}

function buildAgentFacingPreview() {
  var inputSchema = structuredTextOrFallback('tool-input-schema', {});
  var inputSample = structuredTextOrFallback('wizard-input-sample', {});
  var outputSample = structuredTextOrFallback('wizard-output-sample', {});
  var toolName = textValue('tool-name') || 'unnamed_tool';
  var title = textValue('tool-title') || textValue('tool-display-name') || toolName;
  var description = textValue('tool-description');

  return {
    manifest: {
      name: toolName,
      title: title,
      description: description,
      inputSchema: inputSchema,
    },
    toolCall: {
      name: toolName,
      arguments: inputSample,
    },
    successResponse: outputSample,
    errorResponse: {
      isError: true,
      content: [
        {
          type: 'text',
          text: 'Инструмент вернул ошибку. Проверьте входные параметры или состояние внешнего API.',
        },
      ],
    },
  };
}

function renderAgentFacingPreview() {
  var root = document.getElementById('agent-facing-preview-card');
  if (!root) return;

  var preview = buildAgentFacingPreview();
  setTextContent('agent-preview-tool-name', preview.manifest.name);
  setTextContent('agent-preview-tool-title', preview.manifest.title);
  setTextContent('agent-preview-tool-description', preview.manifest.description);
  setTextareaValue('agent-preview-input-schema', preview.manifest.inputSchema);
  setTextareaValue('agent-preview-tool-call', preview.toolCall);
  setTextareaValue('agent-preview-success-response', preview.successResponse);
  setTextareaValue('agent-preview-error-response', preview.errorResponse);
}

function bindAgentFacingPreview() {
  [
    'tool-name',
    'tool-title',
    'tool-display-name',
    'tool-description',
    'tool-input-schema',
    'wizard-input-sample',
    'wizard-output-sample',
  ].forEach(function(id) {
    var element = document.getElementById(id);
    if (!element || element.dataset.agentPreviewBound === 'true') return;
    element.dataset.agentPreviewBound = 'true';
    element.addEventListener('input', renderAgentFacingPreview);
    element.addEventListener('change', renderAgentFacingPreview);
  });
  renderAgentFacingPreview();
}

function copyAgentFacingPreview() {
  var preview = buildAgentFacingPreview();
  var content = JSON.stringify(preview.manifest, null, 2);
  if (navigator.clipboard && navigator.clipboard.writeText) {
    navigator.clipboard.writeText(content).then(function() {
      showWizardLiveStatus(tKey('wizard.agent_preview.copied'), tKey('wizard.agent_preview.copied_body'));
    }).catch(function() {
      setTextareaValue('agent-preview-input-schema', preview.manifest.inputSchema);
    });
  }
}

async function exportWizardYaml() {
  await persistCurrentDraft(true);
  var yaml = await window.CrankApi.exportOperation(wizardWorkspaceId, wizardEditId, {
    mode: 'portable',
    version: currentDraftVersion(),
  });
  downloadTextFile((textValue('tool-name') || 'operation') + '.yaml', yaml, 'application/yaml');
  showWizardLiveStatus(tKey('wizard.yaml.exported'), tKey('wizard.yaml.exported_body'));
}

async function importWizardYaml() {
  if (!wizardWorkspaceId) {
    throw new Error(tKey('wizard.error.no_workspace'));
  }
  var yamlDocument = textValue('wizard-import-yaml-text');
  if (!yamlDocument) {
    showWizardLiveStatus(tKey('wizard.yaml.none'), tKey('wizard.yaml.none_body'), true);
    return;
  }
  var imported = await window.CrankApi.importOperation(wizardWorkspaceId, yamlDocument, 'upsert');
  showWizardLiveStatus(tKey('wizard.yaml.imported'), tKey('wizard.yaml.imported_body'));
  window.location.href = window.location.pathname + '?mode=edit&operationId=' + encodeURIComponent(imported.operation_id);
}

async function publishWizardOperation() {
  await persistCurrentDraft(true);
  var published = await window.CrankApi.publishOperation(
    wizardWorkspaceId,
    wizardEditId,
    currentDraftVersion()
  );
  await refreshCurrentOperationState();
  showWizardLiveStatus(
    tKey('wizard.publish.done'),
    tfKey('wizard.publish.done_body', { version: published.published_version })
  );
}

function handleImportYamlFileSelection(event) {
  var file = event.target.files && event.target.files[0];
  if (!file) return;
  var reader = new FileReader();
  reader.onload = function(loadEvent) {
    setValue('wizard-import-yaml-text', loadEvent.target.result || '');
    showWizardLiveStatus(tKey('wizard.yaml.loaded'), tKey('wizard.yaml.loaded_body'));
  };
  reader.readAsText(file);
}

function describeWizardTestResult(result) {
  return {
    title: result.ok ? tKey('wizard.test.completed') : tKey('wizard.test.failed'),
    body: result.ok ? tKey('wizard.test.completed_body') : tKey('wizard.test.failed_body'),
    isError: !result.ok,
  };
}

async function uploadInputSampleFromWizard() {
  await persistCurrentDraft(true);
  await window.CrankApi.uploadInputSample(
    wizardWorkspaceId,
    wizardEditId,
    parseStructuredText(textValue('wizard-input-sample'))
  );
  showWizardLiveStatus(tKey('wizard.sample.input_saved'), tKey('wizard.sample.input_saved_body'));
}

async function uploadOutputSampleFromWizard() {
  await persistCurrentDraft(true);
  await window.CrankApi.uploadOutputSample(
    wizardWorkspaceId,
    wizardEditId,
    parseStructuredText(textValue('wizard-output-sample'))
  );
  showWizardLiveStatus(tKey('wizard.sample.output_saved'), tKey('wizard.sample.output_saved_body'));
}

async function generateDraftFromWizard() {
  await persistCurrentDraft(true);
  var generated = await window.CrankApi.generateDraft(wizardWorkspaceId, wizardEditId, {});
  setValue('tool-input-schema', JSON.stringify(crankSchemaToJsonSchema(generated.input_schema), null, 2));
  setValue('tool-output-schema', JSON.stringify(crankSchemaToJsonSchema(generated.output_schema), null, 2));
  setValue('tool-input-mapping', mappingSetToEditorValue(generated.input_mapping, 'input', wizardProtocol));
  setValue('tool-output-mapping', mappingSetToEditorValue(generated.output_mapping, 'output', wizardProtocol));
  renderAgentFacingPreview();
  showWizardLiveStatus(tKey('wizard.sample.generated'), tKey('wizard.sample.generated_body'));
}

async function runWizardTest() {
  await persistCurrentDraft(true);
  var result = await window.CrankApi.runOperationTest(wizardWorkspaceId, wizardEditId, {
    version: currentDraftVersion(),
    input: parseStructuredText(textValue('wizard-test-input')),
  });
  wizardTestResponsePreview = result.response_preview;
  setTextareaValue('wizard-test-request-preview', result.request_preview);
  setTextareaValue('wizard-test-response-preview', result.response_preview);
  setTextareaValue('wizard-test-errors', result.errors && result.errors.length ? result.errors : []);
  var status = describeWizardTestResult(result);
  showWizardLiveStatus(
    status.title,
    status.body,
    status.isError
  );
}

function copyTestResponseToOutputSample() {
  if (!wizardTestResponsePreview) {
    showWizardLiveStatus(tKey('wizard.test.no_response'), tKey('wizard.test.no_response_body'), true);
    return;
  }
  setTextareaValue('wizard-output-sample', wizardTestResponsePreview);
  renderAgentFacingPreview();
  showWizardLiveStatus(tKey('wizard.test.response_copied'), tKey('wizard.test.response_copied_body'));
}

window.CrankWizardLive = {
  saveOperation: saveOperation,
  loadOperationForEdit: loadOperationForEdit,
  bindWizardLiveActions: bindWizardLiveActions,
  updateWizardProtocolVisibility: updateWizardProtocolVisibility,
  renderAgentFacingPreview: renderAgentFacingPreview,
};