#!/usr/bin/env bash
# Phase H test — native-only http-listen primitive.
# Starts sx_server with a tiny SX echo handler, drives it with curl
# (GET / POST / 404 / custom header), asserts, then kills it.
set -u
cd "$(dirname "$0")/.."

SRV=_build/default/bin/sx_server.exe
PORT=${HTTP_TEST_PORT:-8911}
PASS=0
FAIL=0
ok()  { echo "  PASS: $1"; PASS=$((PASS+1)); }
bad() { echo "  FAIL: $1 — $2"; FAIL=$((FAIL+1)); }

if [ ! -x "$SRV" ]; then
  echo "build sx_server.exe first (dune build bin/sx_server.exe)"; exit 1
fi

H='(begin (define (h req) (if (= (get req "path") "/echo") {:status 200 :headers {"X-Echo" (get req "method")} :body (str "M=" (get req "method") " P=" (get req "path") " Q=" (get req "query") " B=" (get req "body"))} {:status 404 :body "nope"})) (http-listen '"$PORT"' h))'
ESC=${H//\"/\\\"}

{ printf '(epoch 1)\n(eval "%s")\n' "$ESC"; sleep 30; } | "$SRV" >/tmp/test_http_srv.out 2>&1 &
SVPID=$!
trap 'kill $SVPID 2>/dev/null; wait 2>/dev/null' EXIT

up=0
for _ in $(seq 1 50); do
  curl -s -o /dev/null "http://127.0.0.1:$PORT/echo" 2>/dev/null && { up=1; break; }
  sleep 0.2
done
[ "$up" = 1 ] || { echo "  FAIL: server did not start"; cat /tmp/test_http_srv.out; exit 1; }

# GET with query + custom response header.
g=$(curl -s -i "http://127.0.0.1:$PORT/echo?x=1" | tr -d '\r')
echo "$g" | grep -q '^HTTP/1.1 200 OK'        && ok "GET status 200"          || bad "GET status" "$g"
echo "$g" | grep -q '^X-Echo: GET'            && ok "GET custom header"       || bad "GET header" "$g"
echo "$g" | grep -q '^M=GET P=/echo Q=x=1 B=$' && ok "GET echo body"          || bad "GET body" "$g"

# POST with body.
p=$(curl -s -X POST --data 'hello' "http://127.0.0.1:$PORT/echo")
[ "$p" = 'M=POST P=/echo Q= B=hello' ] && ok "POST body echoed" || bad "POST body" "$p"

# 404 path.
n=$(curl -s -i "http://127.0.0.1:$PORT/missing" | tr -d '\r')
echo "$n" | grep -q '^HTTP/1.1 404 Not Found' && ok "404 status" || bad "404 status" "$n"
echo "$n" | grep -q '^nope$'                  && ok "404 body"   || bad "404 body" "$n"

echo "Results: $PASS passed, $FAIL failed"
[ "$FAIL" = 0 ]