WIP Logger

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-- /lib/Logger
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--- This packages handles the debug log

--os.loadAPI('lib/utils')

debug = {} -- the public API to hold the logger functions

local logfilename = "log.txt"

-- store the log in the global table _G so that if multiple scripts do the os.loadAPI on this one it still adds to the same log
--_G.debug_log = _G.debug_log or {}
--local debug_log = _G.debug_log -- keep all messages of debug log here

debug_log = {} -- keep all messages of debug log here

--- Adds a message to the debug log file
function debug.log(message)

    local fullmsg = message
    local timestamp = os.clock()
    --add to the log
    table.insert(debug_log, {time=timestamp,message=fullmsg})
    local log_msg = timestamp..": "..fullmsg.."\n"
    --save message to logfile
    if #debug_log == 1 then
        --if it is the first message then reset the log file
        file_write(log_msg, logfilename)
    else
        --append it to the log file
        file_append(log_msg, logfilename)
    end
end


local symbols = {
    "(X) ",
    "(-) "
    }
local spin = 1

--- Displays the game information in the terminal
-- if detailed is true it diplays also the latest log events and the buildzone stats
-- by default detailed is false
function debug.printState(game, detailed)
    detailed = detailed or false
    --print("starting debug display")
    term.clear()
    term.setTextColor(colors.green)
    print("20.000 BLOCKS v."..game.version_number.." - (HOLD CTRL+T TO QUIT) "..symbols[spin])
    spin = spin +1
    if spin > #symbols then spin = 1 end
    if detailed then
        --[[ disabled for now until we deal with the TP glitches
        if number_of_players_adventure and number_of_players_creative then
            print("TOTAL PLAYERS: "..(number_of_players_adventure + number_of_players_creative).." - ADVENTURE [ "..number_of_players_adventure.." ], CREATIVE [ "..number_of_players_creative.." ]")
        end
        --]]
        --if number_of_players_adventure  then
        print("TOTAL ADVENTURE MODE PLAYERS: "..(number_of_players_adventure or 0))
        --end
        term.setTextColor(colors.white)

        --local line = 2
        for i,kew in ipairs(game.queues) do
            local minutes = string.format("%02d",math.floor(kew.timer/60))
            local seconds = string.format("%02d",math.floor(kew.timer - (minutes*60)))
            print("BUILDZONE "..i.." | PHASE: "..kew.phase.." | TIME: "..math.floor(kew.timer).." | PLAYERS: "..tableLength(kew.playerlist))
            print("-LIST: "..tostring(kew.playerlist))
            --print(json.encode(kew.playerlist))
        end

        --use the remaining terminal lines to show the log
        -- the terminal has 19 lines, 18 available for printing, last one stays clear at all times
        term.setTextColor(colors.red)
        print("===== LATEST LOG:")
        for i=13-(2*#game.queues), 0, -1 do
            if #debug_log > i then
                print(debug_log[#debug_log-i].message:sub (1,51)) --trim the logged message to fit into a single line in the terminal
            end
        end
    end
    term.setTextColor(colors.white)
end