#!/usr/bin/env bash
# smoke-test.sh — Quick verification of CalcPad CLI and web app
set -euo pipefail

PASS=0
FAIL=0
SKIP=0

pass() { echo "  PASS: $1"; ((PASS++)); }
fail() { echo "  FAIL: $1"; ((FAIL++)); }
skip() { echo "  SKIP: $1"; ((SKIP++)); }

# ─── CLI Tests ──────────────────────────────────────────────────────────────────

echo ""
echo "=== CLI Tests ==="

if command -v cargo &>/dev/null; then

  # 1. Basic arithmetic
  result=$(cargo run -q -p calcpad-cli -- "2 + 3" 2>/dev/null)
  if [[ "$result" == *"5"* ]]; then pass "arithmetic: 2 + 3 = 5"
  else fail "arithmetic: expected 5, got '$result'"; fi

  # 2. Pipe / stdin
  result=$(echo -e "x = 10\nx * 3" | cargo run -q -p calcpad-cli 2>/dev/null)
  if [[ "$result" == *"30"* ]]; then pass "pipe/stdin: x=10, x*3 = 30"
  else fail "pipe/stdin: expected 30 in output, got '$result'"; fi

  # 3. JSON output
  result=$(cargo run -q -p calcpad-cli -- --format json "42" 2>/dev/null)
  if [[ "$result" == *"42"* ]] && [[ "$result" == *"{"* ]]; then pass "JSON output"
  else fail "JSON output: expected JSON with 42, got '$result'"; fi

  # 4. Error exit code for invalid input
  if cargo run -q -p calcpad-cli -- "???invalid???" &>/dev/null; then
    fail "error exit code: expected non-zero exit"
  else
    pass "error exit code: non-zero on bad input"
  fi

  # 5. cargo test suite
  if cargo test --workspace -q 2>/dev/null; then pass "cargo test --workspace"
  else fail "cargo test --workspace"; fi

else
  skip "CLI tests (cargo not found)"
fi

# ─── Web Tests ──────────────────────────────────────────────────────────────────

echo ""
echo "=== Web Tests ==="

WEB_URL="${WEB_URL:-http://localhost:8080}"

if curl -sf "$WEB_URL" &>/dev/null; then

  # 1. index.html returns 200
  status=$(curl -sf -o /dev/null -w "%{http_code}" "$WEB_URL/")
  if [[ "$status" == "200" ]]; then pass "index.html 200"
  else fail "index.html: got HTTP $status"; fi

  # 2. HTML contains expected content
  body=$(curl -sf "$WEB_URL/")
  if [[ "$body" == *"CalcPad"* ]]; then pass "HTML contains CalcPad"
  else fail "HTML missing CalcPad title"; fi

  # 3. WASM JS glue is served
  wasm_js_status=$(curl -sf -o /dev/null -w "%{http_code}" "$WEB_URL/wasm/calcpad_wasm.js")
  if [[ "$wasm_js_status" == "200" ]]; then pass "WASM JS served"
  else fail "WASM JS: got HTTP $wasm_js_status"; fi

  # 4. WASM binary content-type
  ct=$(curl -sf -o /dev/null -w "%{content_type}" "$WEB_URL/wasm/calcpad_wasm_bg.wasm")
  if [[ "$ct" == *"wasm"* ]]; then pass "WASM content-type: $ct"
  else fail "WASM content-type: expected wasm, got '$ct'"; fi

  # 5. SPA fallback — non-existent route returns index.html
  fallback=$(curl -sf "$WEB_URL/nonexistent/route")
  if [[ "$fallback" == *"CalcPad"* ]]; then pass "SPA fallback"
  else fail "SPA fallback: did not return index.html"; fi

else
  skip "Web tests ($WEB_URL not reachable — run 'docker compose up -d' first)"
fi

# ─── Summary ────────────────────────────────────────────────────────────────────

echo ""
echo "=== Summary ==="
echo "  Passed: $PASS  Failed: $FAIL  Skipped: $SKIP"

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