#!/bin/bash
# Does compose still find its file when CFG_<APP>_COMPOSE_FILE is out of scope?
#
#   scripts/dev/lp-compose-file-test
#
# dockerComposeUp/Down derive compose_file from $compose_setup, which
# setupBasicScanVariables reads from CFG_<APP>_COMPOSE_FILE. That variable is
# only set once the app's config has been sourced, and it is not always — a
# restore wipes and re-creates the app folder around those calls.
#
# setupBasicScanVariables already falls back to the standard file for that case.
# The two compose functions did not: with compose_setup empty, neither branch
# ran, compose_file stayed UNSET, and the guard
#
#     [ ! -f "$(appDir "$app")/$compose_file" ]
#
# then tested the app DIRECTORY, which is never a regular file. So the app was
# reported as having no compose file and quietly not started — visible only as
# "Unable to find the compose file", with the restore itself reporting success.

REPO="$(cd "$(dirname "$0")/../.." && pwd)"
BASE="$(mktemp -d "${TMPDIR:-/tmp}/lp-compose-test-XXXXXX")"
trap 'rm -rf "$BASE"' EXIT

fail=0
chk(){ if [[ "$2" == "$3" ]]; then echo "  ok   $1"; else echo "  FAIL $1: got '$2' want '$3'"; fail=1; fi; }

mkdir -p "$BASE/myapp"
: > "$BASE/myapp/docker-compose.yml"

run() {   # run <compose_setup value>   -> prints what the guard decided
    local setup="$1"
    bash -c '
        OS_TYPE=Ubuntu
        appDir(){ printf "%s/%s" "'"$BASE"'" "$1"; }
        setupBasicScanVariables(){ :; }
        isHeader(){ :; }; isError(){ :; }; isSuccessful(){ :; }; checkSuccess(){ :; }
        isNotice(){ echo "NOTICE: $*"; }
        # Everything past the guard is docker; stop there.
        dockerCommandRunInstallUser(){ echo "REACHED_DOCKER"; }
        runFileOp(){ echo "REACHED_DOCKER"; }
        compose_setup="'"$setup"'"
        source "'"$REPO"'/scripts/docker/app/compose/down_app.sh"
        dockerComposeDown myapp 2>/dev/null
    ' 2>/dev/null
}

echo "--- compose_setup=default (the normal path) ---"
out=$(run default)
chk "does not report a missing file" "$(grep -c 'Unable to find' <<< "$out")" "0"

echo "--- compose_setup empty (config not sourced — the restore case) ---"
out=$(run "")
chk "does not report a missing file" "$(grep -c 'Unable to find' <<< "$out")" "0"

echo "--- and it genuinely reports a file that is absent ---"
rm -f "$BASE/myapp/docker-compose.yml"
out=$(run "")
chk "reports the missing file" "$(grep -c 'Unable to find' <<< "$out")" "1"

echo ""
if (( fail )); then echo "FAILED"; exit 1; fi
echo "All compose-file checks passed."