#!/usr/bin/env bash
# Request/response tests against the CoAP server over UDP. No HTTP involved.
#   ./test-coap.sh          (server must already be running)
# Override target with COAP_HOST / COAP_PORT.

CLIENT=${CLIENT:-./target/release/client}
pass=0; fail=0

check() { # check <description> <expected> <method> <path> [payload]
  local desc=$1 want=$2; shift 2
  local got; got=$("$CLIENT" "$@" 2>&1)
  if [[ $got == "$want" ]]; then
    printf '  ok   %-34s %s\n' "$desc" "$got"; ((pass++))
  else
    printf '  FAIL %-34s\n         want: %s\n         got:  %s\n' "$desc" "$want" "$got"; ((fail++))
  fi
}

[[ -x $CLIENT ]] || { echo "build first: cargo build --release"; exit 1; }
echo "CoAP request/response tests -> udp://${COAP_HOST:-127.0.0.1}:${COAP_PORT:-5683}"

check "GET /hello"            "<- 2.05 Hello, World!"                        get  /hello
check "GET ?name"             "<- 2.05 Hello, Imran!"                        get  "/hello?name=Imran"
check "GET percent-encoded"   "<- 2.05 Hello, Md Imran!"                     get  "/hello?name=Md%20Imran"
check "GET plus-encoded"      "<- 2.05 Hello, Md Imran!"                     get  "/hello?name=Md+Imran"
check "GET blank name"        "<- 2.05 Hello, World!"                        get  "/hello?name="
check "POST text body"        "<- 2.01 Hello, Imran!"                        post /hello "Imran"
check "POST JSON body"        "<- 2.01 Hello, Imran!"                        post /hello '{"name":"Imran"}'
check "POST empty -> 4.00"    "<- 4.00 Bad Request: send a name as the payload" post /hello ""
check "unknown path -> 4.04"  "<- 4.04 Not Found: /nope"                     get  /nope
check "wrong method -> 4.05"  "<- 4.05 Method Not Allowed: Put /hello"       put  /hello x

# /health has a moving uptime, so match the shape instead of an exact string.
h=$("$CLIENT" get /health 2>&1)
if [[ $h =~ ^\<-\ 2\.05\ \{\"status\":\"ok\",\"uptime\":[0-9]+\}$ ]]; then
  printf '  ok   %-34s %s\n' "GET /health" "$h"; ((pass++))
else
  printf '  FAIL %-34s got: %s\n' "GET /health" "$h"; ((fail++))
fi

echo "$pass passed, $fail failed"
[[ $fail -eq 0 ]]