#!/usr/bin/lua

local file = "/mnt/sdb/www/mocus/code/system/sysreport.log"

local function run_cmd(cmd)
    local f = io.popen(cmd)
    local out = f:read("*a") or ""
    f:close()

    return cmd .. "\n---------------------\n" .. out .. "\n"
end

local function write(text)
    local f = io.open(file, "a")
    f:write(text)
    f:close()
end


local header = os.date("%Y-%m-%d %H:%M:%S") .. "\n\n"
local f = io.open(file, "w")
f:write(header)
f:close()

write(run_cmd("grep 'Model' /proc/cpuinfo"))
write(run_cmd("hostname"))
write(run_cmd("cat /proc/version"))
write(run_cmd("uptime"))
write(run_cmd([[awk '{split($4,a,"/"); printf "Load: 1min=%s  5min=%s  15min=%s  |  Active=%s  Total=%s  |  Last PID=%s\n", $1, $2, $3, a[1], a[2], $5}' /proc/loadavg]]))
write(run_cmd([[awk '{printf "CPU Temp: %.1f°C\n", $1/1000}' /sys/class/thermal/thermal_zone0/temp]]))
write(run_cmd("who"))
write(run_cmd("df -h -x tmpfs -x devtmpfs"))
write(run_cmd("free -h"))
write(run_cmd([[awk '/MemTotal|MemFree|Buffers|Cached|Swap/ {printf "%s: %.1f MB\n", $1, $2/1024}' /proc/meminfo]]))
write(run_cmd("/sbin/ip route show"))
write(run_cmd("/sbin/ip neighbour"))
write(run_cmd("ss -ta state ESTABLISHED"))