#!/usr/bin/env bash

get_cpu_model() {
    awk -F: '
        $1 ~ /^model name[[:space:]]*$/ {
            value = $2
            sub(/^[[:space:]]*/, "", value)
            print value
            exit
        }
    ' /proc/cpuinfo
}

get_cpu_count() {
    getconf _NPROCESSORS_ONLN
}

get_memory_bytes() {
    awk '
        $1 == "MemTotal:" {
            print $2 * 1024
            exit
        }
    ' /proc/meminfo
}

build_storage_devices_json() {
    lsblk \
        --bytes \
        --json \
        --nodeps \
        --output NAME,TYPE,MODEL,SERIAL,SIZE,TRAN |
        jq '
            [
                .blockdevices[]
                | select(.type == "disk")
                | {
                    name: .name,
                    model: (
                        if .model == null or .model == ""
                        then null
                        else (.model | gsub("^[[:space:]]+|[[:space:]]+$"; ""))
                        end
                    ),
                    serial: (
                        if .serial == null or .serial == ""
                        then null
                        else (.serial | gsub("^[[:space:]]+|[[:space:]]+$"; ""))
                        end
                    ),
                    size_bytes: .size,
                    transport: (
                        if .tran == null or .tran == ""
                        then null
                        else .tran
                        end
                    )
                }
            ]
        '
}