--
-- vs2010_nuget.lua
-- Generate a NuGet packages.config file.
-- Copyright (c) 2016 Jason Perkins and the Premake project
--

	premake.vstudio.nuget2010 = {}

	local p = premake
	local vstudio = p.vstudio
	local nuget2010 = p.vstudio.nuget2010
	local cs2005 = p.vstudio.cs2005


--
-- These functions take the package string as an argument and give you
-- information about it.
--

	function nuget2010.packageName(package)
		return package:gsub(":", ".")
	end

	function nuget2010.packageId(package)
		return package:sub(0, package:find(":") - 1)
	end

	function nuget2010.packageVersion(package)
		return package:sub(package:find(":") + 1, -1)
	end

	local function packageProject(wks, package)
		for prj in p.workspace.eachproject(wks) do
			for i = 1, #prj.nuget do
				local projectPackage = prj.nuget[i]

				if projectPackage == package then
					return prj
				end
			end
		end
	end

	function nuget2010.packageFramework(wks, package)
		local prj = packageProject(wks, package)

		if p.project.isdotnet(prj) then
			local cfg = p.project.getfirstconfig(prj)
			local action = premake.action.current()
			local framework = cfg.dotnetframework or action.vstudio.targetFramework
			return cs2005.formatNuGetFrameworkVersion(framework)
		else
			return "native"
		end
	end


--
-- Generates the packages.config file.
--

	function nuget2010.generatePackagesConfig(obj)
		local wks = obj.workspace

		local done = {}
		local packages = {}
		for prj in p.workspace.eachproject(wks) do
			for i = 1, #prj.nuget do
				local package = prj.nuget[i]

				if not done[package] then
					done[package] = true
					table.insert(packages, package)
				end
			end
		end

		p.w('<?xml version="1.0" encoding="utf-8"?>')
		p.push('<packages>')

		for _, package in ipairs(packages) do
			p.x('<package id="%s" version="%s" targetFramework="%s" />', nuget2010.packageId(package), nuget2010.packageVersion(package), nuget2010.packageFramework(wks, package))
		end

		p.pop('</packages>')
	end