package controllers

import (
	"net/http"
	"oc-catalog/infrastructure"

	oclib "cloud.o-forge.io/core/oc-lib"
	w "cloud.o-forge.io/core/oc-lib/models/workflow"
	tools "cloud.o-forge.io/core/oc-lib/tools"
	beego "github.com/beego/beego/v2/server/web"
	"golang.org/x/net/websocket"
)

// Operations about compute
type GeneralController struct {
	beego.Controller
}

// @Title GetAll
// @Description find compute by id
// @Param file formData file true "File to upload"
// @Success 200 {compute} models.workflow
// @Failure 406 {string} string "Bad request"
// @router / [get]
func (o *GeneralController) GetAll() {
	user, peerID, groups := oclib.ExtractTokenInfo(*o.Ctx.Request)
	file, _, err := o.Ctx.Request.FormFile("file")
	if err != nil {
		o.Data["json"] = map[string]interface{}{
			"data":  nil,
			"code":  406,
			"error": err.Error(),
		}
		o.ServeJSON()
		return
	}
	newWorkflow := &w.Workflow{}
	req := &tools.APIRequest{
		Username: user,
		PeerID:   peerID,
		Groups:   groups,
	}
	newWorkflow, err = newWorkflow.ExtractFromPlantUML(file, req)
	if err != nil {
		o.Data["json"] = map[string]interface{}{
			"data":  nil,
			"code":  406,
			"error": err.Error(),
		}
		o.ServeJSON()
		return
	}

	o.Data["json"] = map[string]interface{}{
		"data":  newWorkflow,
		"code":  200,
		"error": nil,
	}

	o.ServeJSON()
}

func Websocket(user string, groups []string, dataType int, w http.ResponseWriter, r *http.Request) {
	websocket.Handler(func(ws *websocket.Conn) {
		defer func() {
			ws.Close()
			infrastructure.SearchMu.Lock()
			if ch, ok := infrastructure.SearchStream[user]; ok {
				close(ch)
				delete(infrastructure.SearchStream, user)
			}
			infrastructure.SearchMu.Unlock()
			infrastructure.EmitNATS(user, groups, tools.PropalgationMessage{
				Action:   tools.PB_CLOSE_SEARCH,
				DataType: dataType,
			})
		}()
		for msg := range infrastructure.SearchStream[user] {
			if websocket.JSON.Send(ws, msg) != nil {
				return
			}
		}
	}).ServeHTTP(w, r)
}