#!/usr/bin/env bash

set -u

OCF_SUCCESS=0
OCF_ERR_GENERIC=1
OCF_NOT_RUNNING=7
OCF_RUNNING_PROMOTED=8

MC_PROXY_RC_TRANSPORT=10
MC_PROXY_RC_HARD_FAILURE=11

OCF_RESOURCE_INSTANCE=postgresql-ha
OCF_RESKEY_container_runtime=podman

logs=()
exit_reason=""
score=""
cache_rc=""
application_rc=0
application_calls=0
proxy_result_value="delegate|container|podman"


# Load the real function under test first. Test doubles defined below then
# override its external dependencies, including promotion-score helpers.
source ocf/loxthelion/managed-container.d/common.sh


ocf_log()
{
    logs+=("$*")
}

ocf_exit_reason()
{
    exit_reason="$*"
}

mc_proxy_monitor()
{
    printf '%s\n' "${proxy_result_value}"
    return 0
}

mc_proxy_cached_monitor()
{
    return 1
}

mc_proxy_monitor_cache_clear()
{
    cache_rc="cleared"
    return 0
}

mc_proxy_monitor_cache_write()
{
    cache_rc="$1"
    return 0
}

mc_proxy_legacy_shadow_monitor()
{
    echo "ERROR: shadow monitor must not execute for delegation" >&2
    return 99
}

mc_application_monitor()
{
    application_calls=$((application_calls + 1))
    return "${application_rc}"
}

mc_promotion_score_set()
{
    score="$1"
    return 0
}

mc_promotion_score_from_monitor()
{
    case "$1" in
        0|8)
            score="healthy:$1"
            ;;
        *)
            score="-INFINITY"
            ;;
    esac

    return 0
}

echo "===== PODMAN DELEGATION SUCCESS ====="

application_rc=0
proxy_result_value="delegate|container|podman"
cache_rc=""
score=""
application_calls=0

mc_promotion_monitor
rc=$?

[ "$rc" -eq 0 ]
[ "$application_calls" -eq 1 ]
[ "$cache_rc" = 0 ]
[ "$score" = "healthy:0" ]

echo "podman_success          accepted"


echo
echo "===== PROMOTED DELEGATION ====="

application_rc=8
proxy_result_value="delegate|container|podman"
cache_rc=""
score=""
application_calls=0

mc_promotion_monitor
rc=$?

[ "$rc" -eq 8 ]
[ "$application_calls" -eq 1 ]
[ "$cache_rc" = 8 ]
[ "$score" = "healthy:8" ]

echo "podman_promoted         accepted"


echo
echo "===== RUNTIME MISMATCH ====="

application_rc=0
proxy_result_value="delegate|container|docker"
cache_rc=""
score=""
application_calls=0

mc_promotion_monitor
rc=$?

[ "$rc" -eq 1 ]
[ "$application_calls" -eq 0 ]
[ "$cache_rc" = "cleared" ]
[ "$score" = "-INFINITY" ]

echo "runtime_mismatch        rejected"


echo
echo "===== MALFORMED DELEGATION ====="

proxy_result_value="delegate|container|podman|extra"
cache_rc=""
score=""
application_calls=0

mc_promotion_monitor
rc=$?

[ "$rc" -eq 1 ]
[ "$application_calls" -eq 0 ]
[ "$cache_rc" = "cleared" ]
[ "$score" = "-INFINITY" ]

echo "malformed_delegation    rejected"


echo
echo "MONITOR_DELEGATION_SHELL_TEST_PASS=1"