--CampaignMenu.lua

local P = createMenuSheet("CampaignMenu")

function P:onShow()
    P:updateButtons()
end

function P.updateButtons()
    P.updateButton(0, winMgr:getWindow("orxonox/Mission1Button"))
    P.updateButton(1, winMgr:getWindow("orxonox/Mission2Button"))
    P.updateButton(2, winMgr:getWindow("orxonox/Mission3Button"))
    P.updateButton(3, winMgr:getWindow("orxonox/Mission4Button"))
    P.updateButton(4, winMgr:getWindow("orxonox/Mission5Button"))
    P.updateButton(5, winMgr:getWindow("orxonox/Mission6Button"))
    P.updateButton(6, winMgr:getWindow("orxonox/Mission7Button"))
    P.updateButton(7, winMgr:getWindow("orxonox/Mission8Button"))
    P.updateButton(8, winMgr:getWindow("orxonox/Mission9Button"))
end


function P.updateButton(index, button)
    local lastMission = orxonox.LevelManager:getInstance():getLastWonMission()
    if (lastMission == "") then
    else
        local lastwon =P.getIndexOfLastFinishedMission()
        orxonox.LevelManager:getInstance():updatewon(lastwon)
    end

    local test =orxonox.LevelManager:getInstance():missionactivate(index)

    if (test==1) then
        button:setProperty("Visible", "True")
        button:setProperty("Disabled", "False")
    elseif (test==2) then
        button:setProperty("Visible", "True")
        button:setProperty("Disabled", "True")
    else
        button:setProperty("Visible", "False")
        button:setProperty("Disabled", "True")
    end
end

function P.getIndexOfLastFinishedMission()
    local lastMission = orxonox.LevelManager:getInstance():getLastWonMission()
    if (lastMission and lastMission ~= "") then
        local size = orxonox.LevelManager:getInstance():getNumberOfCampaignMissions()
        local index = 0
        while index < size do
            local mission = orxonox.LevelManager:getInstance():getCampaignMission(index)
            if (mission == lastMission) then 
                return index
            end
            index = index + 1
        end
    end
    return -1
end

function P.Mission1Button_clicked(e)
    P.loadLevel(P.FindLevel(0))
end

function P.Mission2Button_clicked(e)
    P.loadLevel(P.FindLevel(1))
end

function P.Mission3Button_clicked(e)
    P.loadLevel(P.FindLevel(2))
end

function P.Mission4Button_clicked(e)
    P.loadLevel(P.FindLevel(3))
end

function P.Mission5Button_clicked(e)
    P.loadLevel(P.FindLevel(4))
end

function P.Mission6Button_clicked(e)
    P.loadLevel(P.FindLevel(5))
end

function P.Mission7Button_clicked(e)
    P.loadLevel(P.FindLevel(6))
end

function P.Mission8Button_clicked(e)
    P.loadLevel(P.FindLevel(7))
end

function P.Mission9Button_clicked(e)
    P.loadLevel(P.FindLevel(8))
end

function P.loadLevel(level)
    orxonox.execute("startGame " .. level:getXMLFilename())
    hideAllMenuSheets()
end

function P.FindLevel(index)
    local filename = orxonox.LevelManager:getInstance():getCampaignMission(index)
    local level = nil
    local templevel = nil
    local size = orxonox.LevelManager:getInstance():getNumberOfLevels()
    local index = 0
    while index < size do
        templevel = orxonox.LevelManager:getInstance():getAvailableLevelListItem(index)
        if(templevel:getXMLFilename()==filename) then 
            level = templevel
        end
    index=index+1
    end
    return level
end

function P.CampaignMenuBackButton_clicked(e)
    hideMenuSheet(P.name)
end

return P