local ViragDevTool = ViragDevTool

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-- EVENTS
-----------------------------------------------------------------------------------------------
function ViragDevTool:GetListenerFrame()
    if (self.listenerFrame == nil) then
        self.listenerFrame = CreateFrame("Frame", "ViragDevToolListenerFrame", UIParent);
    end
    return self.listenerFrame
end

function ViragDevTool:StartMonitorEvent(event, unit)
    if not event then return end

    local tEvent = self:GetMonitoredEvent(event, unit)

    if not tEvent then
        tEvent = { event = event, unit = unit, active = true }
        table.insert(self.settings.events, tEvent)
    end

    local f = self:GetListenerFrame()

    if type(unit) == "string" then
        f:RegisterUnitEvent(event, unit)
    else
        f:RegisterEvent(event)
    end

    tEvent.active = true

    local eventName = event
    if unit then eventName = eventName .. " " .. tostring(unit) end
    self:print(self.colors.green .. "Start" .. self.colors.white .. " event monitoring: " .. self.colors.lightblue .. eventName)
end

function ViragDevTool:StopMonitorEvent(event, unit)
    if not event then return end
    local tEvent = self:GetMonitoredEvent(event, unit)

    if tEvent and tEvent.active then
        local f = self:GetListenerFrame()
        f:UnregisterEvent(event)
        tEvent.active = false

        local eventName = event
        if unit then eventName = eventName .. " " .. tostring(unit) end

        self:print(self.colors.red .. "Stop" .. self.colors.white .. " event monitoring: " .. self.colors.lightblue .. eventName)
    end
end

function ViragDevTool:ToggleMonitorEvent(tEvent)
    if tEvent then
        if tEvent.active then
            self:StopMonitorEvent(tEvent.event, tEvent.unit)
        else
            self:StartMonitorEvent(tEvent.event, tEvent.unit)
        end
    end
end

function ViragDevTool:SetMonitorEventScript()
    local f = self:GetListenerFrame()

    f:SetScript("OnEvent", function(this, ...)
        local args = { ... }
        local event = args[1]
        if ViragDevTool:GetMonitoredEvent(event) then
            if #args == 1 then args = args[1] end
            ViragDevTool:Add(args, date("%X") .. " " .. event)
        end
    end);
end

function ViragDevTool:GetMonitoredEvent(event, args)

    if self.settings == nil or self.settings.events == nil then return end

    local found

    for _, tEvent in pairs(self.settings.events) do
        if tEvent.event == event then
            found = tEvent
            break
        end
    end

    if found then
        return found
    end
end