-- ==============================================================================
-- CV Site - Hyperscript Functions
-- ==============================================================================
-- Global hyperscript functions for CV interactive features
-- Keeps HTML templates clean and behavior organized

-- ==============================================================================
-- PRINT FUNCTIONS
-- ==============================================================================

def printFriendly()
  -- Store current state
  set container to the first .cv-container
  set paper to the first .cv-paper
  set wasClean to container.classList.contains('theme-clean')
  set wasLong to paper.classList.contains('cv-long')
  set currentZoom to localStorage.getItem('cv-zoom') or '100'

  -- Apply print-friendly settings
  if wasClean is false
    add .theme-clean to container
  end
  remove .cv-long from paper
  add .cv-short to paper

  -- Reset zoom for consistent printing
  set #zoom-wrapper's *zoom to 1

  -- Let CSS apply, then print
  wait 50ms
  call window.print()

  -- Wait for print dialog to close, then restore
  wait 100ms

  -- Restore original theme
  if wasClean is false
    remove .theme-clean from container
  end

  -- Restore original length
  if wasLong is true
    remove .cv-short from paper
    add .cv-long to paper
  end

  -- Restore original zoom by triggering slider input event
  if currentZoom is not '100'
    set #zoom-slider's value to currentZoom
    send input to #zoom-slider
  end
end

-- ==============================================================================
-- SCROLL BEHAVIOR
-- ==============================================================================

def initScrollBehavior()
  set :lastScroll to 0
  set :scrollThreshold to 100
  set :keepHeaderVisible to false
end

def handleScroll()
  set currentScroll to window.pageYOffset
  set menu to the first .navigation-menu
  set isMenuOpen to menu.classList.contains('menu-open')

  -- Calculate if at bottom (within 50px)
  set scrollHeight to the document's documentElement's scrollHeight
  set clientHeight to the document's documentElement's clientHeight
  set isAtBottom to (scrollHeight - currentScroll - clientHeight) < 50

  -- Reset keepHeaderVisible when scrolling up
  if currentScroll < :lastScroll
    set :keepHeaderVisible to false
  end

  -- Header visibility: Scrolling down past threshold
  if currentScroll > :scrollThreshold and currentScroll > :lastScroll and :keepHeaderVisible is false
    add .header-hidden to .action-bar
    if isMenuOpen is true
      add .header-hidden to menu
    end
  end

  -- Header visibility: Scrolling up past threshold
  if currentScroll > :scrollThreshold and (currentScroll <= :lastScroll or :keepHeaderVisible is true)
    remove .header-hidden from .action-bar
    if isMenuOpen is true
      remove .header-hidden from menu
    end
  end

  -- Header visibility: At top
  if currentScroll <= :scrollThreshold
    remove .header-hidden from .action-bar
    if isMenuOpen is true
      remove .header-hidden from menu
    end
  end

  -- Back to top button visibility (with null check)
  set backToTop to #back-to-top
  if backToTop is not null
    if currentScroll > 300
      set backToTop's *display to 'flex'
    end
    if currentScroll <= 300
      set backToTop's *display to 'none'
    end
  end

  -- At-bottom class for fixed buttons (with null checks)
  if isAtBottom
    if backToTop is not null then add .at-bottom to backToTop end
    if #info-button is not null then add .at-bottom to #info-button end
    if #shortcuts-button is not null then add .at-bottom to #shortcuts-button end
    if #download-button is not null then add .at-bottom to #download-button end
    if #print-friendly-button is not null then add .at-bottom to #print-friendly-button end
    if #cmd-k-button is not null then add .at-bottom to #cmd-k-button end
    add .at-bottom to .color-theme-switcher
    if #zoom-toggle-button is not null then add .at-bottom to #zoom-toggle-button end
  end

  if not isAtBottom
    if backToTop is not null then remove .at-bottom from backToTop end
    if #info-button is not null then remove .at-bottom from #info-button end
    if #shortcuts-button is not null then remove .at-bottom from #shortcuts-button end
    if #download-button is not null then remove .at-bottom from #download-button end
    if #print-friendly-button is not null then remove .at-bottom from #print-friendly-button end
    if #cmd-k-button is not null then remove .at-bottom from #cmd-k-button end
    remove .at-bottom from .color-theme-switcher
    if #zoom-toggle-button is not null then remove .at-bottom from #zoom-toggle-button end
  end

  -- Update last scroll position
  set :lastScroll to currentScroll
end

-- ==============================================================================
-- EXPAND/COLLAPSE ALL SECTIONS
-- ==============================================================================
-- Expand all <details> elements in the CV
def expandAllSections(evt)
  if evt then call evt.preventDefault() end
  set details to <details/>
  for d in details
    set d's @open to ''
  end
end

-- Collapse all <details> elements in the CV
def collapseAllSections(evt)
  if evt then call evt.preventDefault() end
  set details to <details/>
  for d in details
    call d.removeAttribute('open')
  end
end

-- ==============================================================================
-- FOOTER HOVER INTERACTION
-- ==============================================================================
-- Adds/removes footer-hovered class to fixed buttons when hovering footer
def setFooterHover(show)
  set buttons to <.download-btn, .print-friendly-btn, .shortcuts-btn, .info-button, .back-to-top, .color-theme-switcher/>
  for btn in buttons
    if show
      add .footer-hovered to btn
    else
      remove .footer-hovered from btn
    end
  end
end

-- ==============================================================================
-- MODAL HELPERS
-- ==============================================================================
-- Close modal when clicking backdrop (outside content)
def closeOnBackdrop(modal, evt)
  if evt.target is modal
    call modal.close()
  end
end

-- ==============================================================================
-- SCROLL HELPERS
-- ==============================================================================
-- Smooth scroll to top of page
def scrollToTop(evt)
  call evt.preventDefault()
  call window.scrollTo({top: 0, behavior: 'smooth'})
end

-- ==============================================================================
-- NAVIGATION SCROLL
-- ==============================================================================
-- Smooth scroll to a section by ID
def scrollToSection(evt, sectionId)
  if evt then call evt.preventDefault() end
  set el to #{sectionId}
  if el is not null
    call el.scrollIntoView({ behavior: 'smooth' })
    -- Close the menu after navigation
    set menu to the first .navigation-menu
    if menu is not null
      remove .menu-hover from menu
      remove .menu-open from menu
    end
  end
end

-- ==============================================================================
-- KEYBOARD SHORTCUTS
-- ==============================================================================
-- Note: Keyboard event handlers are now defined inline in the body tag
-- because hyperscript 0.9.12 doesn't support nested event handlers (on ... inside def)