#!/usr/bin/env bash
# test-sc2-artifact-coverage.sh — Verifies SC2 (per-preset coverage)
#
# Reads .coverage.md, extracts preset names from the table column 1,
# for each preset runs:
#   grep -rli "<preset>" plugins/claude-design/ --include='*.md' \
#     --exclude-dir='.claude' --exclude-dir='tests'
# and asserts ≥1 file hit.
#
# The preset list is NOT hardcoded — auto-adapts when .coverage.md changes.
#
# Usage: bash tests/test-sc2-artifact-coverage.sh
# Exit codes: 0 = all presets covered; 1 = at least one preset uncovered

set -euo pipefail
LC_ALL=en_US.UTF-8

RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m'

PLUGIN_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
PASS=0
FAIL=0
WARN=0

pass() { printf "${GREEN}  ✓ %s${NC}\n" "$1"; PASS=$((PASS + 1)); }
fail() { printf "${RED}  ✗ %s${NC}\n" "$1"; FAIL=$((FAIL + 1)); }
warn() { printf "${YELLOW}  ⚠ %s${NC}\n" "$1"; WARN=$((WARN + 1)); }

COVERAGE_FILE="$PLUGIN_ROOT/.coverage.md"

echo "=== test-sc2-artifact-coverage ==="
echo "Plugin root: $PLUGIN_ROOT"
echo ".coverage.md: $COVERAGE_FILE"
echo ""

if [ ! -f "$COVERAGE_FILE" ]; then
  fail ".coverage.md missing — cannot verify SC2"
  echo ""
  echo "=== Summary ==="
  printf "Pass: %d  Fail: %d  Warn: %d\n" "$PASS" "$FAIL" "$WARN"
  exit 1
fi

# -------------------------------------------------------
# Extract preset names from .coverage.md table column 1
# -------------------------------------------------------
# Table rows look like:
#   | designs | skills/.../presets/designs.md | Evidence grade: ... | https://... |
# Skip header (| Preset | ...) and separator (| --- | ...).
PRESETS="$(awk -F'|' '
  /^\| / && NR > 1 {
    name = $2
    gsub(/^ +| +$/, "", name)
    if (name != "Preset" && name !~ /^-+$/ && name != "") {
      print name
    }
  }
' "$COVERAGE_FILE")"

if [ -z "$PRESETS" ]; then
  fail "no preset names extracted from .coverage.md"
  echo ""
  echo "=== Summary ==="
  printf "Pass: %d  Fail: %d  Warn: %d\n" "$PASS" "$FAIL" "$WARN"
  exit 1
fi

# -------------------------------------------------------
# For each preset, grep for at least one file hit in plugin content
# -------------------------------------------------------
while IFS= read -r preset; do
  [ -z "$preset" ] && continue

  HITS="$(grep -rli "$preset" "$PLUGIN_ROOT" \
    --include='*.md' \
    --exclude-dir='.claude' \
    --exclude-dir='tests' \
    2>/dev/null || true)"

  HIT_COUNT="$(printf '%s\n' "$HITS" | grep -c '.' || true)"
  if [ -z "$HIT_COUNT" ]; then HIT_COUNT=0; fi

  if [ "$HIT_COUNT" -ge 1 ]; then
    pass "preset '$preset' covered by $HIT_COUNT file(s)"
  else
    fail "preset '$preset' has zero file hits in plugin content"
  fi
done < <(printf '%s\n' "$PRESETS")

echo ""
echo "=== Summary ==="
printf "Pass: %d  Fail: %d  Warn: %d\n" "$PASS" "$FAIL" "$WARN"

if [ "$FAIL" -gt 0 ]; then
  exit 1
fi
exit 0