require("Utils.utils")

-------------------------------------------------------
-- globals
-------------------------------------------------------
_G["projectsprocessor"] = {}
_G["projectsblocked"] = {}
_G["projectsemitted"] = {}
_G["namespacesemitted"] = {}
_G["usingClang"] = false
_G["usingMSVC"] = false

-------------------------------------------------------
-- process command line arguments into global space
-------------------------------------------------------
require("Boilerplate.options")

-------------------------------------------------------
-- debug stuff
-------------------------------------------------------
function printHeader(key, val)
    print("-------------------------------------------------------")
    print(key, val)
    print("-------------------------------------------------------")
end

function dbgGroup(name)
    printHeader("group", name);
    group(name)
end

-------------------------------------------------------
-- API
-------------------------------------------------------
local jsonProcessor = require("Boilerplate.jsonProcessor")

local normalizeSourceRoot = function(path) 
    local backup = path
    path = os.realpath(_G.path.join(os.getcwd(), path));
    if (not path) then
        print("path error, not found?", backup)
        return
    end
    return path
end

local extendInfo = function(this) 
    local type = this.projectType:lower()
    this.isShared   = type == "sharedlib"
    this.isStatic   = type == "staticlib"
    this.isExec     = type == "consoleapp" or type == 'windowedapp'
    this.isConsole  = type == "consoleapp"
    this.isWindowed = type == "windowedapp"
end

function addVisit(ina)
    local args = {
        namespace = ina.namespace,
        name = ina.name,                -- OPT: recommended 
        path = ina.path,
        type = ina.type,
        out = ina.out,
        translations = ina.translations -- OPT: dictionary of dependency maps 
    }

    local path = normalizeSourceRoot(args.path)
    if (not path) then
        return
    end

    local info = {
        namespace = args.namespace,
        path = path,
        projectType = args.type,
        out = args.out,
        name = args.name,
        translations = args.translations
    }

    extendInfo(info)

    local project = {
        info = info,
        processor = nil
    }

    local cwd = getroot()

    local remoteLua  = path .. "/Aurora.lua"
    local remoteJson = path .. "/Aurora.json"
    local localJson  = cwd .. "/Build_UserScripts/" .. args.name  .. ".aurora.json"
    local localLua   = cwd .. "/Build_UserScripts/" .. args.name  .. ".aurora.lua"

    if (os.isfile(localLua)) then
        project.processor = require(localLua)(info)
    elseif (os.isfile(localJson)) then
        info.jpath = localJson
        project.processor = jsonProcessor(info)
    elseif (os.isfile(remoteLua)) then
        project.processor = require(remoteLua)(info)
    elseif (os.isfile(remoteJson)) then
        info.jpath = remoteJson
        project.processor = jsonProcessor(info)
    else
        print("Couldnt find Aurora build script for: ", path)
        return
    end

    projectsprocessor[info.name] = project
end 

function addScript(ina)
    local args = {
        namespace = ina.namespace,
        script = ina.script,
        path = ina.path,
        type = ina.type,
        out = ina.out
    }

    local path = normalizeSourceRoot(args.path)
    if (not path) then
        return
    end

    local info = {
        namespace = args.namespace,
        path = path,
        projectType = args.type,
        out = args.out
    }

    extendInfo(info)

    local project = {
        info = info,
        processor = nil
    }
    
    local procesor = userRequire(args.script)
    if (not procesor) then
        print("missing project script:", args.script, path)
        return
    end

    project.processor = procesor(info)
    if (not project.processor) then
        print("script error")
        return
    end

    projectsprocessor[info.name] = project
end

-- private
local processLocalProject = function(proj)
    processSubproject(proj.info.name);
end

function processProject()
    forEach(projectsprocessor, processLocalProject)
end 

function processSubproject(name)
    if (projectsblocked[name]) then
        return
    end

    projectsblocked[name] = name
    local a = projectsprocessor[name]
    if (not a) then
        print("missing project: ", name)
        return
    end

    local info = a.info

    local ns = info.namespace
    if (not namespacesemitted[ns]) then
        namespacesemitted[ns] = "";
        dbgGroup(ns)
    end

    local cwd = os.getcwd()
    local old = _G["current_project"]

    _G["current_project"] = name
    os.chdir(info.path)

    a.processor:process(a.processor)

    os.chdir(cwd)
    _G["current_project"] = old

    projectsemitted[name] = name
end 

function isWeakCircularReference(name)
    return projectsblocked[name] and not projectsemitted[name]
end

function isProjectLoaded(name) 
    return projectsemitted[name] and true
end

function getProjectInfo(name)
    if (not name) then
        return
    end
    local scre = projectsprocessor[name]
    if (not scre) then
        return
    end
    return scre.info
end

function getCurrentProjectName() 
    return current_project
end

-- private
local buildAction = require("Actions.buildAction")
-- executes inline under iprocessor::process
function addBuildAction(...)
    buildAction(...)
end

-- executes inline under iprocessor::process
function addFeature(feature)
    local script = os.getcwd() .. "/Build_Script/Features/" .. feature:lower() .. ".lua"

    if (not os.isfile(script)) then
        return
    end
    
    require(script)()
end

require ("Boilerplate.workspace")