package sdk

import (
	"context"

	"github.com/mailru/easyjson"
	_ "github.com/tetratelabs/tinymem"

	"code.icb4dc0.de/buildr/wasi-module-sdk-go/mem"
	rpcv1 "code.icb4dc0.de/buildr/wasi-module-sdk-go/protocol/generated/rpc/v1"
)

var defaultRegistry = NewTypeRegistry()

func Register(cat Category, moduleName string, factory Factory) {
	defaultRegistry.Add(cat, moduleName, factory)
}

//export inventory
func Inventory() uint64 {
	var inventory rpcv1.PluginInventory

	for _, t := range defaultRegistry.List() {
		inventory.Modules = append(inventory.Modules, &rpcv1.ModuleReference{
			ModuleCategory: t.Category.String(),
			ModuleType:     t.Type,
		})
	}

	data, err := inventory.MarshalVT()
	if err != nil {
		panic(err)
	}

	return mem.UnifyPtrSize(mem.DataToUnmanagedPtr(data))
}

//export run
func Run(specPtr, specSize uint32) {
	var startTask rpcv1.StartTaskRequest

	if err := startTask.UnmarshalVT(mem.DataFromPtr(specPtr, specSize)); err != nil {
		panic(err)
	}

	executor := NewExecutor(startTask.Buildr.Repo.Root, startTask.Buildr.OutDir, startTask.Buildr.BinDir)
	reference := startTask.GetReference().GetModule()
	module := defaultRegistry.Get(Category(reference.GetModuleCategory()), reference.GetModuleType())

	if err := easyjson.Unmarshal(startTask.RawTask, module); err != nil {
		panic(err)
	}

	executor.Run(context.Background(), module)
}