local beginningMarker = {
    {2518.23706, -2270.74927, -0.55000},
    {2698.90576, -2310.06494, -0.55000},
    {2309.20703, -2417.13794, -0.55000},
    {2351.62012, -2522.45435, -0.55000},
    {2614.61987, -2479.15967, -0.55000},
    {2730.23950, -2587.99219, -0.55000}
}

local isMissionActive = false
local firstMarker, firstBlip = nil, nil
local timers = {}
local boatElements ={}
local currentBoat = 1

function enableStartMissionOption(plr, seat)
    if (plr ~= localPlayer) then
        return false
    end
    if (getElementMode(source) ~= 430 or seat ~= 0) then
        return false
    end
    if (getElementData(plr, "o") ~= "Police Officer") then
        return false
    end
    exports.CIThelp:modTextBar("boatMission", "Press N to start the Predator Mission.")
    bindKey(plr, "N", "down", startBoatMission)
end

function startBoatMission()
    local veh = getPedOccupiedVehicle(localPlayer)
    local seat = getPedOccupiedVehicleSeat(localPlayer)
    if (not veh or seat ~= 0) then
        return false
    end
    if (isMissionActive) then
        return false
    end
    unbindKey("N", "down", startBoatMission)
    isMissionActive = true
    local pos = beginningMarker[math.random(1,#beginningMarker)]
    firstMarker = createMarker(pos.x, pos.y, pos.z, "cylinder", 6, 0, 0, 210)
    firstBlip = createBlip(pos.x, pos.y, pos.z, 43)

    addEventHandler("onClientMarkerHit", firstMarker, missionStarting)
    addEventHandler("onClientPlayerWasted", localPlayer, failMission)
    addEventHandler("onClientPlayerResign", localPlayer, failMission)
    addEventHandler("onClientElementDestroy", veh, failMission)
end

function checkDistance(veh)
    if (not veh or not isElement(veh)) then
        failMission()
        return false
    end
    local px, py, pz = getElementPosition(localPlayer)
    local vx, vy, vz = getElementPosition(veh)
    if (getDistanceBetweenPoints2D(px, py, vx, vy) > 100) then
        failMission("dist")
        return true
    end
end
addEventHandler("onClientVehicleEnter", root, enableStartMissionOption)

function missionStarting(plr, dim)
    if(plr ~= localPlayer or not dim) then
        return false
    end
    local veh = getPedOccupiedVehicle(localPlayer)
    local seat = getPedOccupiedVehicleSeat(localPlayer)
    if(not veh or seat ~= 0) then
        return false
    end
    if(firstMarker or firstBlip) then
        setElementSpeed(veh, 1, 0)
        outputChatBox("Some drug smugglers are escaping with tons of drugs, stop them before they escape!", 0, 0, 110)
        destroyElement(firstMarker)
        destroyElement(firstBlip)
        firstMarker = nil
        firstBlip = nil
    end
    timers["distanceCheck"] = setTimer(checkDistance, 1000, 0, veh)
    boatElements["boat"] = createVehicle(446, x, y, z)
    boatElements["boatPed1"] = exports.CITpeds:newPed(15, 0, 0, 0)
    boatElements["boatPed2"] = exports.CITpeds:newPed(22, x, y, z)
    exports.CITpeds:pedOptions(boatElements["boatPed2"], 5, 31)
    attachElements(boatElements["boatPed2"], boatElements["boat"])
    warpPedIntoVehicle(boatElements["boatPed1"], boatElements["boat"])
    setPedControlState(boatElements["boatPed1"], "accelerate", true)
    timers["turnBoat"] = setTimer(turnBoat, 4000, 0)

    addEventHandler("onClientVehicleDamage", boatElements["boat"], boatIsDamaged)
end

function boatIsDamaged(attacker, gun, loss)
    if(attacker ~= localPlayer) then
        return false
    end
    if(getElementHealth(source) > 0) then
        return false
    end
    removePedFromVehicle(boatElements["boatPed1"])
    setElementPosition(boatElements["boatPed1"], x, y, z)
    exports.CITpeds:pedOptions(boatElements["boatPed1"], 5, 31)
    addEventHandler("onClientPedWasted", boatElements["boatPed1"], boatPedDead)
end

function boatPedDead(killer)
    if(killer ~= localPlayer) then
        return false
    end
    if(isElement(drugCrate)) then
    	return false
    end
    local drugCrate = createMarker(x, y, z, "cylinder", 1, 0, 0, 255)
    outputChatBox("You killed the drug smugglers, remove the drugs from the crate", 0, 255, 0)
    addEventHandler("onClientMarkerHit", drugCrate1, tookTheCrate)
end

function tookTheCrate(plr, dim)
    if(plr ~= localPlayer or not dim) then
        return false
    end
    destroyElement(source)
    if(currentBoat == 4) then
        missionCompleted()
        return true
    end
    currentBoat = currentBoat + 1
    outputChatBox("You have got the drugs, but there are still more drug smugglers, stop them!", 0, 0, 160)
    destroyMainAssets()
    missionStarting(localPlayer, true)
end

function destroyMainAssets()
    for i, v in pairs(boatElements) do
        destroyElement(v)
    end
    boatElements = {}
    for i, v in pairs(timers) do
        destroyElement(v)
    end
    timers = {}
end

function turnBoat()
    if(not boatElements["boat"] or not boatElements["boatPed1"]) then
        return false
    end
    local r = math.random(1, 2)
    if(r == 1) then
        setPedControlState(boatElements["boatPed1"], "vehicle_left", true)
    else
        setPedControlState(boatElements["boatPed1"], "vehicle_right", true)
    end
end

function missionCompleted()
    destroyMainAssets()
    isMissionActive = false
    triggerServerEvent() --gonna give rewards
end