#!/bin/bash

# ============================================================================
# Type a command at the running bot on its own behalf.
#
# Signal never delivers an account its own sends, so this is the only way to
# exercise a command end-to-end without a second Signal account. It posts for
# real, into a real group -- SELFTEST_GROUPS decides which.
#
#   scripts/selftest.sh testbot '!papież' 5
# ============================================================================

set -euo pipefail

SCRIPT_NAME="$(basename "$0")"
readonly SCRIPT_NAME
readonly BOT="http://127.0.0.1:${BIND_PORT:-8137}"

GROUP="${1:-}"
TEXT="${2:-}"
TIMES="${3:-1}"

usage() {
    echo "Usage: $SCRIPT_NAME <group-name> <text> [times]"
    echo "  The group must be listed in SELFTEST_GROUPS, or the bot refuses."
    exit 0
}

validate_requirements() {
    if [[ -z "$GROUP" || -z "$TEXT" ]]; then
        echo "Error: group and text are required" >&2
        usage
    fi
    if ! command -v jq >/dev/null; then
        echo "Error: jq is required" >&2
        exit 1
    fi
    if ! curl -sf "${BOT}/healthz" >/dev/null; then
        echo "Error: no healthy bot at ${BOT}" >&2
        exit 1
    fi
}

main() {
    validate_requirements
    local reply status
    for ((i = 1; i <= TIMES; i++)); do
        reply="$(curl -s -X POST "${BOT}/_selftest" \
            -H 'Content-Type: application/json' \
            --data "$(jq -nc --arg g "$GROUP" --arg t "$TEXT" '{group:$g,text:$t}')")"
        status="$(jq -r '.status' <<<"$reply")"
        if [[ "$status" != "delivered" ]]; then
            echo "  ${i}/${TIMES} ${status}: $(jq -r '.reason // "?"' <<<"$reply")" >&2
            exit 1
        fi
        echo "  ${i}/${TIMES} delivered ${TEXT} to ${GROUP}"
        # The cooldown is per user per command, and the self-test is always
        # the same user, so a tighter loop just proves the cooldown works.
        [[ $i -lt $TIMES ]] && sleep "${SELFTEST_INTERVAL:-11}"
    done
    echo "== done; look at ${GROUP} in Signal"
}

main "$@"