Feature: Creating a new article from NewArticleModal

  As a verified RenewCMS owner
  I want NewArticleModal to take a title and a first paragraph, create the article as a draft
    over POST /v1/article/, and take me straight to the editor to keep writing
  So that starting a new article is a two-field, low-friction step instead of a full form, and I
    land where I can actually write it

  Background:
    Given NewArticleModal is a UModal opened from Home's "New article" action (mobile header
      button, desktop header button, and the empty state's "New article" action), per
      docs/design/routes.md and docs/design/screens/new-article.md; the Articles-page trigger and
      the /article/new deep link are out of scope for this slice, deferred until ArticlesPage exists
    And every time it opens, it starts in the Default state: title "New article", text "It's
      saved as a draft. Titles can't be changed later, so check it now.", an empty, focused Title
      field with placeholder "e.g. Choosing tiles for a small bathroom", a CharacterCounter
      reading "0 / 200" and help "3 to 200 characters.", an empty First paragraph textarea with
      placeholder "Start writing. You'll continue in the editor." and help "You can format it and
      add images in the editor.", a "Cancel" button and a "Create draft" button
    And the Title field is sent as the request's title and is validated required, 3 to 200
      characters, counted the same way as the CharacterCounter ([...str].length, which is rune
      count, matching article_title_rules.feature's server-side rune counting)
    And the First paragraph field is sent as the request's body and is validated required (at
      least one character)
    And each field validates on blur and again on submit; submitting while either field is
      invalid sends no request, and shows both fields' errors at once if both are invalid: Title
      under 3 characters shows "Use at least 3 characters." in place of its help text, with the
      counter in its error style; an empty First paragraph shows "Add a first paragraph. It can
      be a single sentence." in place of its help text
    And activating "Create draft" while both fields are valid sends POST /v1/article/ with JSON
      {"title": "<title>", "body": "<first paragraph>"}; while the request is in flight both
      fields and both buttons are disabled, the confirm button reads "Creating…" with a loading
      indicator, and the modal cannot be dismissed by Cancel, Esc or a backdrop click
    And a 201 response closes the modal, emits created(article) with the response body, and (for
      this slice) HomeView.vue's created handler navigates to /article/{id}/edit and raises a
      toast: color success, icon i-lucide-circle-check, title "Draft created", description
      "\"{title}\" is saved as a draft.", with id "article-created-{id}" per
      docs/design/components.md's toast-id convention
    And a 400 response — whether apperr.ArticleTitleErrorMessage for a title that passed this
      form's own check but still failed the server's, or any other 400 — is never shown verbatim;
      it re-enables the form with both fields' current values kept, shows "Check this title and
      try again." in place of the Title field's help text, and shows an alert "Something in the
      form isn't valid. Check the highlighted fields."; the First paragraph field shows no error
    And a 500 response or a request that never reaches the server re-enables the form with both
      fields' current values kept and shows an alert "Couldn't create the article. Your text is
      still here. Try again in a moment.", with no field-level error
    And "Cancel" always closes the modal immediately and discards both fields, with no
      confirmation prompt, whenever the form is not disabled by an in-flight request
    And a 401 response is handled entirely by useApi's existing global handling
      (features/api_client_global_error_handling.feature): the session is cleared and the app
      navigates to /login?redirect=<path>&reason=expired; this slice adds no draft-preservation
      behavior for the modal's fields, unlike the editor's session-expiry handling

  Scenario: Opening the modal shows the Default state
    Given the user is on /home
    When the user activates "New article"
    Then NewArticleModal opens with title "New article" and the text "It's saved as a draft.
      Titles can't be changed later, so check it now."
    And the Title field is empty, focused, and its counter reads "0 / 200"
    And the First paragraph field is empty
    And "Create draft" is present but the form has not been submitted

  Scenario: Validation — a title under 3 characters on blur
    Given the modal is open
    When the user types "Ti" into the Title field and moves focus away
    Then the Title field shows the error "Use at least 3 characters." in place of its help text
    And the counter reads "2 / 200" in its error style
    And no request is sent

  Scenario: Validation — an empty first paragraph on blur
    Given the modal is open with a valid Title
    When the user leaves the First paragraph field empty and moves focus away
    Then the First paragraph field shows the error "Add a first paragraph. It can be a single
      sentence."
    And no request is sent

  Scenario: Validation — submitting with both fields invalid shows both errors and sends nothing
    Given the modal is open with Title "Ti" and an empty First paragraph
    When the user activates "Create draft"
    Then the Title field shows "Use at least 3 characters." and the First paragraph field shows
      "Add a first paragraph. It can be a single sentence."
    And POST /v1/article/ is never sent

  Scenario: Submitting disables the form and cannot be dismissed
    Given the modal is open with Title "Choosing tiles for a small bathroom" and First paragraph
      "Small rooms show every grout line, so we start with the floor."
    When the user activates "Create draft"
    Then POST /v1/article/ is sent with JSON {"title": "Choosing tiles for a small bathroom",
      "body": "Small rooms show every grout line, so we start with the floor."}
    And both fields become disabled, "Cancel" becomes disabled, and the confirm button reads
      "Creating…" with a loading indicator
    And pressing Esc or clicking the backdrop does not close the modal

  Scenario: A successful create closes the modal and hands off to the editor with a toast
    Given the user is on /home with the modal open, Title "Choosing tiles for a small bathroom"
      and First paragraph "Small rooms show every grout line, so we start with the floor.", and
      "Create draft" has been activated
    When POST /v1/article/ resolves 201 with the created article, id 42, is_online false
    Then the modal closes
    And the app navigates to /article/42/edit
    And a toast appears: color success, icon i-lucide-circle-check, title "Draft created",
      description "\"Choosing tiles for a small bathroom\" is saved as a draft.", id
      "article-created-42"

  Scenario: Title rejected — a 400 that got past this form's own check
    Given the modal is open with Title "Choosing tiles for a small bathroom" (already valid by
      this form's own rule) and First paragraph "Small rooms show every grout line, so we start
      with the floor.", and "Create draft" has been activated
    When POST /v1/article/ resolves 400
    Then the modal re-enables, keeping both field values
    And the Title field shows "Check this title and try again." in place of its help text
    And an alert reads "Something in the form isn't valid. Check the highlighted fields."
    And the First paragraph field shows no error

  Scenario Outline: Error — a 500 or a network failure keeps the text and offers to retry
    Given the modal is open with Title "Choosing tiles for a small bathroom" and First paragraph
      "Small rooms show every grout line, so we start with the floor.", and "Create draft" has
      been activated
    When POST /v1/article/ <failure>
    Then the modal re-enables, keeping both field values
    And an alert reads "Couldn't create the article. Your text is still here. Try again in a
      moment."
    And neither field shows a field-level error

    Examples:
      | failure                    |
      | resolves with a 500 response |
      | never reaches the server     |

  Scenario: Retrying after an Error succeeds
    Given the modal is in the Error state after a 500, with Title "Choosing tiles for a small
      bathroom" and First paragraph "Small rooms show every grout line, so we start with the
      floor." still in the fields
    When the user activates "Create draft" again
    Then POST /v1/article/ is sent again with the same JSON body
    When it resolves 201 with the created article, id 42
    Then the modal closes, the app navigates to /article/42/edit, and a toast appears: color
      success, icon i-lucide-circle-check, title "Draft created", description "\"Choosing tiles
      for a small bathroom\" is saved as a draft.", id "article-created-42"

  Scenario: Cancel discards the fields with no confirmation
    Given the modal is open with Title "Choosing tiles for a small bathroom" and First paragraph
      "Small rooms show every grout line, so we start with the floor."
    When the user activates "Cancel"
    Then the modal closes immediately, with no confirmation prompt
    And no request is sent