#!/usr/bin/env bash
# next/tests/bootstrap_load.sh — Step 4e acceptance test.
#
# Exercises bootstrap:load_genesis/1 + strip_sx_suffix/1.
# Walks bootstrap:read_genesis output, strips .sx from each
# filename, registers raw bytes as entries under the matching
# kind. 13 cases.

set -uo pipefail
cd "$(git rev-parse --show-toplevel)"

SX_SERVER="${SX_SERVER:-hosts/ocaml/_build/default/bin/sx_server.exe}"
if [ ! -x "$SX_SERVER" ]; then
  SX_SERVER="/root/rose-ash/hosts/ocaml/_build/default/bin/sx_server.exe"
fi
if [ ! -x "$SX_SERVER" ]; then
  echo "ERROR: sx_server.exe not found." >&2
  exit 1
fi

VERBOSE="${1:-}"
PASS=0; FAIL=0; ERRORS=""
TMPFILE=$(mktemp); trap "rm -f $TMPFILE" EXIT

cat > "$TMPFILE" <<'EPOCHS'
(epoch 1)
(load "lib/erlang/tokenizer.sx")
(load "lib/erlang/parser.sx")
(load "lib/erlang/parser-core.sx")
(load "lib/erlang/parser-expr.sx")
(load "lib/erlang/parser-module.sx")
(load "lib/erlang/transpile.sx")
(load "lib/erlang/runtime.sx")
(load "lib/erlang/vm/dispatcher.sx")

(epoch 2)
(eval "(get (erlang-load-module (file-read \"next/kernel/registry.erl\")) :name)")
(epoch 3)
(eval "(get (erlang-load-module (file-read \"next/kernel/bootstrap.erl\")) :name)")

;; strip_sx_suffix on "create.sx" -> "create"
(epoch 10)
(eval "(get (erlang-eval-ast \"bootstrap:strip_sx_suffix(<<99,114,101,97,116,101,46,115,120>>) =:= <<99,114,101,97,116,101>>\") :name)")

;; strip_sx_suffix unchanged on names without .sx
(epoch 11)
(eval "(get (erlang-eval-ast \"bootstrap:strip_sx_suffix(<<104,101,108,108,111>>) =:= <<104,101,108,108,111>>\") :name)")

;; strip_sx_suffix on exactly ".sx" -> empty binary
(epoch 12)
(eval "(get (erlang-eval-ast \"bootstrap:strip_sx_suffix(<<46,115,120>>) =:= <<>>\") :name)")

;; load_genesis on bad input rejects with proper tag
(epoch 13)
(eval "(get (erlang-eval-ast \"case bootstrap:load_genesis({error, broken}) of {error, {bad_read_result, _}} -> ok; _ -> bad end\") :name)")

;; Per-kind counts after load match the section file counts
(epoch 20)
(eval "(erlang-eval-ast \"{ok, S} = bootstrap:load_genesis(bootstrap:read_genesis()), length(registry:list(activity_types, S))\")")
(epoch 21)
(eval "(erlang-eval-ast \"{ok, S} = bootstrap:load_genesis(bootstrap:read_genesis()), length(registry:list(object_types, S))\")")
(epoch 22)
(eval "(erlang-eval-ast \"{ok, S} = bootstrap:load_genesis(bootstrap:read_genesis()), length(registry:list(projections, S))\")")
(epoch 23)
(eval "(erlang-eval-ast \"{ok, S} = bootstrap:load_genesis(bootstrap:read_genesis()), length(registry:list(validators, S))\")")
(epoch 24)
(eval "(erlang-eval-ast \"{ok, S} = bootstrap:load_genesis(bootstrap:read_genesis()), length(registry:list(codecs, S))\")")
(epoch 25)
(eval "(erlang-eval-ast \"{ok, S} = bootstrap:load_genesis(bootstrap:read_genesis()), length(registry:list(sig_suites, S))\")")
(epoch 26)
(eval "(erlang-eval-ast \"{ok, S} = bootstrap:load_genesis(bootstrap:read_genesis()), length(registry:list(audience, S))\")")

;; registry:lookup retrieves a known entry's bytes
(epoch 30)
(eval "(get (erlang-eval-ast \"{ok, S} = bootstrap:load_genesis(bootstrap:read_genesis()), case registry:lookup(activity_types, <<99,114,101,97,116,101>>, S) of {ok, B} -> is_binary(B) and (byte_size(B) > 100); _ -> false end\") :name)")

;; load_genesis is deterministic — compare via cid:to_string of state
(epoch 31)
(eval "(get (erlang-eval-ast \"R = bootstrap:read_genesis(), {ok, S1} = bootstrap:load_genesis(R), {ok, S2} = bootstrap:load_genesis(R), cid:to_string(S1) =:= cid:to_string(S2)\") :name)")
EPOCHS

OUTPUT=$(timeout 300 "$SX_SERVER" < "$TMPFILE" 2>/dev/null)

check() {
  local epoch="$1" desc="$2" expected="$3"
  local actual
  actual=$(echo "$OUTPUT" | awk -v e="$epoch" '
    $0 ~ "^\\(ok-len " e " " { getline; print; exit }
    $0 ~ "^\\(ok " e " "     { print; exit }
    $0 ~ "^\\(error " e " "  { print; exit }
  ')
  [ -z "$actual" ] && actual="<no output for epoch $epoch>"
  if echo "$actual" | grep -qF -- "$expected"; then
    PASS=$((PASS+1))
    [ "$VERBOSE" = "-v" ] && echo "  ok $desc"
  else
    FAIL=$((FAIL+1))
    ERRORS+="  FAIL [$desc] (epoch $epoch) expected: $expected | actual: $actual
"
  fi
}

check  2  "registry module loaded"              "registry"
check  3  "bootstrap module loaded"             "bootstrap"
check 10  "strip suffix create.sx -> create"    "true"
check 11  "strip suffix hello unchanged"        "true"
check 12  "strip suffix .sx -> empty"           "true"
check 13  "load_genesis rejects bad shape"      "ok"
check 20  "loaded activity_types count = 3"     "3"
check 21  "loaded object_types count = 13"      "13"
check 22  "loaded projections count = 7"        "7"
check 23  "loaded validators count = 3"         "3"
check 24  "loaded codecs count = 3"             "3"
check 25  "loaded sig_suites count = 2"         "2"
check 26  "loaded audience count = 3"           "3"
check 30  "registry:lookup activity_types/create" "true"
check 31  "load_genesis deterministic"          "true"

TOTAL=$((PASS+FAIL))
if [ $FAIL -eq 0 ]; then
  echo "ok $PASS/$TOTAL next/tests/bootstrap_load.sh passed"
else
  echo "FAIL $PASS/$TOTAL passed, $FAIL failed:"
  echo "$ERRORS"
fi
[ $FAIL -eq 0 ]
