#!/usr/bin/env bash

truthy() {
    local value

    value="$(printf '%s' "$1" | tr '[:upper:]' '[:lower:]')"
    case "${value}" in
        1 | true | yes | on)
            return 0
            ;;
        *)
            return 1
            ;;
    esac
}

disabled_value() {
    local value

    value="$(printf '%s' "$1" | tr '[:upper:]' '[:lower:]')"
    case "${value}" in
        0 | false | no | off | disabled)
            return 0
            ;;
        *)
            return 1
            ;;
    esac
}

jeannie_log_start() {
    local command_name="$1"
    local timestamp

    if [[ -n "${JEANNIE_LOG_FILE}" ]]; then
        return 0
    fi

    timestamp="$(date +%Y%m%d-%H%M%S)"
    mkdir -p "${JEANNIE_LOG_DIR}"
    JEANNIE_LOG_FILE="${JEANNIE_LOG_DIR}/jeannie-${command_name}-${timestamp}.log"
    JEANNIE_ERROR_LOG_FILE="${JEANNIE_LOG_DIR}/jeannie-${command_name}-${timestamp}.error.log"
    : >"${JEANNIE_LOG_FILE}"
    : >"${JEANNIE_ERROR_LOG_FILE}"
    printf 'Log: %s\n' "${JEANNIE_LOG_FILE}"
    printf 'Error log: %s\n' "${JEANNIE_ERROR_LOG_FILE}"
}

jeannie_step_plan() {
    JEANNIE_STEP_INDEX=0
    JEANNIE_STEP_TOTAL="$1"
}

jeannie_verbose_enabled() {
    truthy "${JEANNIE_VERBOSE:-false}"
}

jeannie_step_prefix() {
    local description="$1"

    if ((JEANNIE_STEP_TOTAL > 0)); then
        printf '[%d/%d] %-42s ' "${JEANNIE_STEP_INDEX}" "${JEANNIE_STEP_TOTAL}" "${description}"
    else
        printf '[%d] %-46s ' "${JEANNIE_STEP_INDEX}" "${description}"
    fi
}

jeannie_compact_text() {
    local text="$1"
    local max_length="${2:-96}"

    text="${text//$'\r'/ }"
    text="${text//$'\n'/ }"
    text="$(printf '%s' "${text}" | sed -E 's/[[:space:]]+/ /g; s/^ //; s/ $//')"
    if ((${#text} > max_length)); then
        text="${text:0:max_length - 3}..."
    fi
    printf '%s' "${text}"
}

jeannie_step_progress() {
    local description="$1"
    local step_log="$2"
    local started_at="$3"
    local last_line="${4:-}"
    local elapsed=$((SECONDS - started_at))

    printf '\r'
    jeannie_step_prefix "${description}"
    if [[ -n "${last_line}" ]]; then
        printf 'running %ss | %s' "${elapsed}" "${last_line}"
    else
        printf 'running %ss' "${elapsed}"
    fi
    printf '\033[K'
}

jeannie_step_latest_progress_line() {
    local step_log="$1"
    local last_line=""

    if [[ -s "${step_log}" ]]; then
        last_line="$(tail -n 1 "${step_log}" 2>/dev/null || true)"
        last_line="$(jeannie_compact_text "${last_line}" 88)"
    fi
    printf '%s' "${last_line}"
}

redact_sensitive_output() {
    sed -E \
        -e 's/(GITEA_BOOTSTRAP_PASSWORD=)["'\'']?[^"'\''[:space:]]+["'\'']?/\1[REDACTED]/g' \
        -e 's/(PIHOLE_WEBPASSWORD=)["'\'']?[^"'\''[:space:]]+["'\'']?/\1[REDACTED]/g' \
        -e 's/(COSIGN_PASSWORD=)["'\'']?[^"'\''[:space:]]+["'\'']?/\1[REDACTED]/g' \
        -e 's/(GITEA_RUNNER_REGISTRATION_TOKEN=)["'\'']?[^"'\''[:space:]]+["'\'']?/\1[REDACTED]/g' \
        -e 's/(--password[=[:space:]]+)["'\'']?[^"'\''[:space:]]+["'\'']?/\1[REDACTED]/g' \
        -e 's/(--token[=[:space:]]+)["'\'']?[^"'\''[:space:]]+["'\'']?/\1[REDACTED]/g' \
        -e 's/(password[=:][[:space:]]*)[^[:space:]]+/\1[REDACTED]/Ig' \
        -e 's/(token[=:][[:space:]]*)[^[:space:]]+/\1[REDACTED]/Ig' \
        -e 's#(https?://[^:/[:space:]]+):[^@/[:space:]]+@#\1:[REDACTED]@#g'
}

run_step() {
    local description="$1"
    local step_log
    local status_file
    local status
    local progress_pid
    local progress_interval="${JEANNIE_PROGRESS_INTERVAL_SECONDS:-10}"
    local started_at
    local current_progress_line=""
    local last_progress_line=""
    local last_progress_rendered_at=0
    shift

    JEANNIE_STEP_INDEX=$((JEANNIE_STEP_INDEX + 1))
    jeannie_step_prefix "${description}"

    step_log="$(mktemp)"
    status_file="$(mktemp)"
    {
        printf '\n== [%d/%d] %s ==\n' "${JEANNIE_STEP_INDEX}" "${JEANNIE_STEP_TOTAL}" "${description}"
        printf 'Started: %s\n' "$(date -Is)"
    } >>"${JEANNIE_LOG_FILE}"

    if jeannie_verbose_enabled; then
        set +e
        "$@" 2>&1 | redact_sensitive_output | tee "${step_log}" | tee -a "${JEANNIE_LOG_FILE}"
        status=${PIPESTATUS[0]}
        set -e
    else
        set +e
        (
            set +e
            "$@" 2>&1 | redact_sensitive_output | tee "${step_log}" >>"${JEANNIE_LOG_FILE}"
            printf '%s\n' "${PIPESTATUS[0]}" >"${status_file}"
        ) &
        progress_pid=$!
        if ! [[ "${progress_interval}" =~ ^[0-9]+$ ]] || ((progress_interval < 1)); then
            progress_interval=10
        fi
        started_at="${SECONDS}"
        while kill -0 "${progress_pid}" >/dev/null 2>&1; do
            sleep "${progress_interval}"
            if kill -0 "${progress_pid}" >/dev/null 2>&1; then
                current_progress_line="$(jeannie_step_latest_progress_line "${step_log}")"
                if [[ "${current_progress_line}" != "${last_progress_line}" ]] ||
                    ((SECONDS - last_progress_rendered_at >= 60)); then
                    jeannie_step_progress "${description}" "${step_log}" "${started_at}" "${current_progress_line}"
                    last_progress_line="${current_progress_line}"
                    last_progress_rendered_at="${SECONDS}"
                fi
            fi
        done
        wait "${progress_pid}" || true
        status="$(cat "${status_file}" 2>/dev/null || printf '1')"
        set -e
    fi

    printf 'Finished: %s\n' "$(date -Is)" >>"${JEANNIE_LOG_FILE}"

    if ((status == 0)); then
        printf '\r'
        jeannie_step_prefix "${description}"
        printf 'ok\033[K\n'
        rm -f "${step_log}" "${status_file}"
        return 0
    fi

    printf '\r'
    jeannie_step_prefix "${description}"
    printf 'failed\033[K\n\n'
    {
        printf '\n== FAILED [%d/%d] %s ==\n' "${JEANNIE_STEP_INDEX}" "${JEANNIE_STEP_TOTAL}" "${description}"
        printf 'Finished: %s\n' "$(date -Is)"
        sed 's/^/    /' "${step_log}"
    } >>"${JEANNIE_ERROR_LOG_FILE}"
    printf 'Step failed: %s\n' "${description}" >&2
    printf 'Exit status: %s\n' "${status}" >&2
    printf 'Full step output:\n' >&2
    sed 's/^/    /' "${step_log}" >&2
    printf '\nFull log: %s\n' "${JEANNIE_LOG_FILE}" >&2
    printf 'Error log: %s\n' "${JEANNIE_ERROR_LOG_FILE}" >&2
    rm -f "${step_log}" "${status_file}"
    return "${status}"
}