#!/usr/bin/env bash
# audit-touch-targets.sh — Static analysis for 44px minimum touch targets on mobile.
# Scans JS templates for clickable elements, cross-references CSS for mobile sizing.
# Usage: bash scripts/audit-touch-targets.sh

set -euo pipefail

CSS_DIR="${1:-src/css}"
JS_DIR="${2:-src/js}"
PKG_DIR="${3:-packages}"

VIOLATIONS=0

# ── Phase 1: Build a map of class -> mobile sizing from CSS ──
# For each class, record whether it has min-width/min-height >= 44px in mobile breakpoint
declare -A HAS_MOBILE_SIZE   # class -> "1" if it has adequate mobile touch target
declare -A CLOSE_BUTTONS     # class -> "file:line" for close-button-like elements

# Known close button classes to audit specifically
CLOSE_CLASSES=(
  "sw-banner__close"
  "sw-toast__close"
  "sw-dialog__close"
  "sw-drawer__close"
  "sw-tabs__arrow"
  "modal-close"
)

# Scan CSS for mobile breakpoint rules with min-height/min-width >= 44px
for f in "$CSS_DIR"/*.css "$PKG_DIR"/*/css/main.css; do
  [ -f "$f" ] || continue
  in_mobile=0
  lineno=0
  current_selector=""

  while IFS= read -r line; do
    lineno=$((lineno + 1))
    trimmed="${line#"${line%%[![:space:]]*}"}"

    # Enter mobile @media block
    if [[ "$trimmed" =~ ^@media.*max-width.*768 ]]; then
      in_mobile=1
      continue
    fi

    if (( in_mobile )); then
      # Track brace depth to know when we leave @media
      if [[ "$trimmed" == "}" ]] && [[ -z "$current_selector" ]]; then
        in_mobile=0
        continue
      fi

      # Selector line
      if [[ "$trimmed" == *"."* ]] && [[ "$trimmed" == *"{"* ]]; then
        sel="${trimmed%%\{*}"
        if [[ "$sel" =~ \.([a-zA-Z_][a-zA-Z0-9_-]*) ]]; then
          current_selector="${BASH_REMATCH[1]}"
        fi
        # Check inline properties
        if [[ "$trimmed" =~ min-height.*44px ]] || [[ "$trimmed" =~ min-height.*2\.75rem ]] || [[ "$trimmed" =~ min-height.*var\(--sp-12\) ]]; then
          HAS_MOBILE_SIZE["$current_selector"]=1
        fi
        if [[ "$trimmed" =~ min-width.*44px ]] || [[ "$trimmed" =~ min-width.*2\.75rem ]]; then
          HAS_MOBILE_SIZE["$current_selector"]=1
        fi
        [[ "$trimmed" == *"}"* ]] && current_selector=""
        continue
      fi

      # Property line inside mobile block
      if [[ -n "$current_selector" ]]; then
        if [[ "$trimmed" =~ min-height.*44px ]] || [[ "$trimmed" =~ min-height.*2\.75rem ]] || [[ "$trimmed" =~ min-height.*var\(--sp-12\) ]]; then
          HAS_MOBILE_SIZE["$current_selector"]=1
        fi
        if [[ "$trimmed" =~ min-width.*44px ]] || [[ "$trimmed" =~ min-width.*2\.75rem ]]; then
          HAS_MOBILE_SIZE["$current_selector"]=1
        fi
        [[ "$trimmed" == "}" ]] && current_selector=""
      fi
    fi
  done < "$f"
done

echo "╔══════════════════════════════════════════════════════════════════════╗"
echo "║                    Touch Target Audit Report                       ║"
echo "╠══════════════════════════════════════════════════════════════════════╣"
echo ""

# ── Phase 2: Check known close-button classes ──
echo "## Close Button Classes"
echo ""
for cls in "${CLOSE_CLASSES[@]}"; do
  if [[ -n "${HAS_MOBILE_SIZE[$cls]:-}" ]]; then
    printf "  ✓ .%-30s — has mobile touch target\n" "$cls"
  else
    printf "  ✗ .%-30s — MISSING min-width/min-height: 44px in mobile breakpoint\n" "$cls"
    VIOLATIONS=$((VIOLATIONS + 1))
  fi
done
echo ""

# ── Phase 3: Scan JS for small interactive elements ──
echo "## Interactive Elements in JS Templates"
echo ""

# Find elements with onClick or <button that have small/no padding and no mobile override
for f in $(find "$JS_DIR" "$PKG_DIR" -name '*.js' -type f 2>/dev/null); do
  [ -f "$f" ] || continue
  lineno=0
  while IFS= read -r line; do
    lineno=$((lineno + 1))

    # Look for onClick with a class
    if [[ "$line" =~ onClick ]] && [[ "$line" =~ class.*\"([a-zA-Z_][a-zA-Z0-9_\ -]*)\" ]]; then
      classes="${BASH_REMATCH[1]}"
      for cls in $classes; do
        # Skip known-good patterns (buttons with adequate padding)
        [[ "$cls" == sw-btn* ]] && continue
        [[ "$cls" == sw-menu__item* ]] && continue
        [[ "$cls" == sw-dropdown__option* ]] && continue
        [[ "$cls" == sw-tabs__tab* ]] && continue
        # Check if this class has a mobile override
        if [[ -z "${HAS_MOBILE_SIZE[$cls]:-}" ]]; then
          # Only flag if it looks like a small interactive element
          if [[ "$cls" == *close* ]] || [[ "$cls" == *btn* ]] || [[ "$cls" == *toggle* ]] || [[ "$cls" == *trigger* ]] || [[ "$cls" == *action* ]] || [[ "$cls" == *clear* ]] || [[ "$cls" == *delete* ]] || [[ "$cls" == *remove* ]]; then
            printf "  ? %-50s — .%s (no mobile min-size found)\n" "$(basename "$f"):$lineno" "$cls"
          fi
        fi
      done
    fi
  done < "$f"
done

echo ""
echo "╚══════════════════════════════════════════════════════════════════════╝"
echo ""
echo "Summary: $VIOLATIONS known violations in close-button classes"
echo ""

if (( VIOLATIONS > 0 )); then
  echo "RESULT: FAIL — $VIOLATIONS close button(s) need min-width/min-height: 44px in @media (max-width: 768px)"
  exit 1
else
  echo "RESULT: PASS — all known interactive elements have adequate mobile touch targets"
  exit 0
fi