local auProject = auRequire("Core/project").startProject
local projectHandlers = auRequire("Core/JSON/jsonProjectHandlers")
local otherLangs = auRequire("Core/OtherLang")

function JsonProcessor(info)
    local interface = {}
    local result, err = json.decode(io.readfile(info.jpath))

    if (not result) then
        auFatal("parse error", info.path, err)
        return
    end

    if (not info.name) then
        info.name = result.name
    end
    
    if (not info.projectType) then
        info.projectType = result.projectType
    end

    result.name = info.name

    local otherLang = otherLangs[info.projectType]
    if (otherLang) then
        info.projectType = "utility"

        interface.lang = {
            name = info.projectType
        }

        otherLang.processJson(info, interface.lang, result)
    end

    -- ported
    local includeDirEx = function(path, incFiles)
        includedirs(path)

        if (not incFiles) then
            return
        end
        
        files(path .. "/**.h")
        files(path .. "/**.hpp")
        files(path .. "/**.inl")
    end

    local handleJSONInclude = function(this, val, incFiles)
        projectHandlers.runProjectImport(this, result, {"include", "includes", "actions"}, function(dep, soft)
            auIncludeProject(this:translateDep(dep), soft)
        end)
    end

    local handleInclude = function(this, incFiles) 
        local result = this.result

        auForEach(result.defines, defines)

        if (result.type:lower() == "aurora") then
            includeDirEx(info.path .. "/Include")
        elseif (result.type:lower() == "lazy_free") then
            includeDirEx(info.path)
            handleJSONInclude(this, false, incFiles)
        elseif (result.type:lower() == "root") then
            includeDirEx(info.path)
            handleJSONInclude(this, result.noRootInclude, incFiles)
        elseif (result.type:lower() == "generic") then
            handleJSONInclude(this, false, incFiles)
        end
    end 

    local handleLink = function(this) 
        dependson(this.info.name)

        auForEach(result.linkSources, function(source)
            files(path.join(this:getMeta().path, source))
        end)

        local type = this.result.type
        if ((type:lower() == "utility") or (type:lower() == "blank")) then
            return
        end

        if ((not this.result.noLink)) then
            links(this.info.name)
        end

        projectHandlers.runProjectLink(this, result, function(dep, soft)
            auLinkProject(this:translateDep(dep), soft)
        end)
    end

    local handleReference = function(this, circular) 
        local type = this.result.type

        if ((type:lower() == "utility") or (type:lower() == "blank")) then
            return
        end

        local cur = auGetCurrentProjectMeta()

        local staticImport = circular

        local jsonKeys = {}
        if (cur and cur.isShared and not circular) then
            table.insert(jsonKeys, "dllimport")
        elseif (cur and cur.isStatic and not circular) then
            table.insert(jsonKeys, "dllexport")
            table.insert(jsonKeys, "staticImport")
            table.insert(jsonKeys, "staticImpDefines")
        elseif (circular) then
            table.insert(jsonKeys, "staticImport")
            table.insert(jsonKeys, "staticImpDefines")
        end

        table.insert(jsonKeys, "include")
        table.insert(jsonKeys, "include-depends")
        table.insert(jsonKeys, "include-soft-depends")

        handleInclude(this, false)

        defines(("_auhas_" .. this.result.name):upper():gsub("%-", "_") .. "=1")

        projectHandlers.runProjectImport(this, result, jsonKeys, function(dep, soft)
            auIncludeProject(this:translateDep(dep), soft)
        end)
    end

    local resolveDependencies = function(this, resolve)
        projectHandlers.runProjectLink(this, result, resolve)
    end

    local handleProcess = function (this)
        local result = this.result
        local name = this:getMeta().name
        local path = this:getMeta().path

        local isUtility = false

        local project = {
            name = info.name,
            projectType = info.projectType or result.projectType,
            dest = info.out,
            noLink = result.noLink
        }
        
        if (result.noLink) then
            project.projectType = "none"
            info.projectType = "none"
        end

        if (project.projectType == "none") then
            if (os.host() == "linux") then
                project.projectType = "utility"
            end
        end

        if (interface.lang) then
            project.projectType = "utility"
            result.type =  "utility"
        end
         
        if (result.type:lower() == "aurora") then

            local srcPath = path .. "/Source"
            local incPath = path .. "/Include"  -- /Source is emitted by design. Use it as a prefix in <> includes; eg, #include <Source/MyLib.hpp>

            project.src = srcPath
            project.inc = {incPath, path}
            auProject(project)

        elseif (result.type:lower() == "lazy_free") then 
            
            project.src = path .. "/*.*"
            project.inc = path
            auProject(project)

        elseif (result.type:lower() == "root") then 

            project.src = path
            project.inc = path
            auProject(project)

        elseif (result.type:lower() == "generic") then
            
            auProject(project)

        elseif (result.type:lower() == "utility") then
            auProject(project)
            kind "utility"
            isUtility = true

        elseif (result.type:lower() == "blank") then
            return

        else
            auFatal("invalid project type", result.type)
        end
        
        handleInclude(this, true)

        if (not isUtility) then
            projectHandlers.runProjectBlock(this, result)

            if (this:getMeta().projectType:lower() == "sharedlib") then
                auForEach(result.dllexport, defines)
            end
        end

        if (interface.lang) then
            projectHandlers.runOtherLang(this, result)
            otherLang.processProject(info, interface.lang)
        end
        
        if (info.options and info.options.alsoEval) then
            auForEach(info.options.alsoEval, function(eval) 
                eval.type = "nvrgunagivuup"
                projectHandlers.runProjectBlock(this, eval)
            end) 
        end
    end

    auForEach(result.subprojs, function(subproj) 
        local subinfo = {
            namespace = info.namespace,
            path = path.join(info.path, subproj.path),
            projectType = subproj.projectType,
            out = info.out,
            name = subproj.name,
            translations = auCopyTables(info.translations, subproj.translations)
        }

        auAddVist(subinfo)
    end)

    interface.result = result
    interface.info = info
    interface.resolveDependencies = resolveDependencies 
    interface.process = handleProcess
    interface.handleLink = handleLink
    interface.handleReference = handleReference
    return interface
    
end

return JsonProcessor