local propertyTable = {
    MapID = 1,TriggerID = 2,TaskLineID = 3,TaskChildID = 4,FunctionItemID = 5,
}

local mainPropertyTable = { 
    MapID = 1,TriggerID = 2,PageIndex = 3,LineIndex = 4,
}

local primaryTable = {
    "MapID","TriggerID",
}


local DataPageEntry = {}
local rawget = rawget

local base = {
    __index = function(t, k)
        local propertyIndex = propertyTable[k]
		if propertyIndex then
            local mainPropertyIndex = mainPropertyTable[k]
            if mainPropertyIndex then
                return t[mainPropertyIndex]
            end

            local pageIndex = t[3]
            local pageData = DataPageEntry[pageIndex]
            if pageData == nil then
                pageData = require('Data/TaskTrigger-page'..pageIndex)
                if DataSheetUtil then
                    --skip fixedpoint process for data sheet checker
                    DataSheetUtil.ProcessFixedPoint('TaskTrigger', pageData)
                end
                DataPageEntry[pageIndex] = pageData
            end

            local lineIndex = t[4]
            local resultData = pageData[lineIndex]
			return resultData[propertyIndex]
		end
	end,

	__newindex = function()
		error('Attempt to modify read-only table')
	end
}

local dataTable = {
	setmetatable({1,0,1,1},base),
}

return {
    dataTable = dataTable,
    propertyTable = propertyTable,
    primaryTable = primaryTable,
}