package controllers

import (
	"encoding/json"
	"errors"
	"time"

	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"
	"github.com/nats-io/nats.go"
)

// Operations about workflow
type WorkflowController struct {
	beego.Controller
}

// @Title Search
// @Description search workspace
// @Param	search		path 	string	true		"the word search you want to get"
// @Success 200 {workspace} models.workspace
// @router /search/:search [get]
func (o *WorkflowController) Search() {
	// store and return Id or post with UUID
	search := o.Ctx.Input.Param(":search")
	o.Data["json"] = oclib.Search(nil, search, oclib.LibDataEnum(oclib.WORKFLOW))
	o.ServeJSON()
}

// @Title Update
// @Description create workflows
// @Param	id		path 	string	true		"the workflowid you want to get"
// @Param	body		body 	models.workflow	true		"The workflow content"
// @Success 200 {object} models.workflow
// @router /:id [put]
func (o *WorkflowController) Put() {
	// store and return Id or post with UUID
	var res map[string]interface{}
	id := o.Ctx.Input.Param(":id")
	json.Unmarshal(o.Ctx.Input.CopyBody(10000), &res)
	caller := tools.NewHTTPCaller("", "", "", oclib.GetPath(oclib.LibDataEnum(oclib.BOOKING))+"/oc/booking")
	data := oclib.UpdateOne(oclib.LibDataEnum(oclib.WORKFLOW), res, id, caller)
	data.Err += o.SetNATSPub(res, data)
	o.Data["json"] = data
	o.ServeJSON()
}

func (o *WorkflowController) SetNATSPub(res map[string]interface{}, data oclib.LibData) string {
	if sched, ok := res["schedule"]; ok && sched != nil && data.Code == 200 {
		workflow := data.ToWorkflow()
		if workflow != nil && workflow.Schedule != nil {
			// HERE NATS
			nc, err := nats.Connect(nats.DefaultURL)
			if err != nil {
				return " -> Could not reach NATS server"
			}
			start := ""
			if workflow.Schedule.Start != nil {
				start = workflow.Schedule.Start.String()
			}
			end := ""
			if workflow.Schedule.End != nil {
				end = workflow.Schedule.End.String()
			}
			str_description, _ := json.Marshal(map[string]string{
				"workflow_id": workflow.UUID,
				"start_date":  start,
				"stop_date":   end,
			})
			err = nc.Publish("workflowsUpdate", str_description)
			time.Sleep(time.Second * 2)
			if err != nil {
				return " -> " + err.Error()
			}
		}
	}
	return ""
}

// @Title Create
// @Description create workflows
// @Param	data		body 	json	true		"body for data content (Json format)"
// @Success 200 {object} models.workflow
// @router / [post]
func (o *WorkflowController) Post() {
	var res map[string]interface{}
	json.Unmarshal(o.Ctx.Input.CopyBody(10000), &res)
	caller := tools.NewHTTPCaller("", "", "", oclib.GetPath(oclib.LibDataEnum(oclib.BOOKING))+"/oc/booking")
	data := oclib.StoreOne(oclib.LibDataEnum(oclib.WORKFLOW), res, caller)
	data.Err += o.SetNATSPub(res, data)
	o.Data["json"] = data
	o.ServeJSON()
}

// @Title Publish
// @Description create workflows
// @Param	id		path 	string	true		"the workflowid you want to get"
// @Success 200 {object} models.workflow
// @router /publish/:id [post]
func (o *WorkflowController) Publish() {
	id := o.Ctx.Input.Param(":id")
	data := oclib.LoadOne(oclib.LibDataEnum(oclib.WORKFLOW), id)
	if data.Data != nil {
		o.Data["json"] = oclib.CopyOne(oclib.LibDataEnum(oclib.WORKFLOW_RESOURCE), data.Data.Serialize())
	} else {
		o.Data["json"] = data
	}
	o.ServeJSON()
}

// @Title GetAll
// @Description find workflow by workflowid
// @Success 200 {workflow} models.workflow
// @router / [get]
func (o *WorkflowController) GetAll() {
	o.Data["json"] = oclib.LoadAll(oclib.LibDataEnum(oclib.WORKFLOW))
	o.ServeJSON()
}

// @Title Get
// @Description find workflow by workflowid
// @Param	id		path 	string	true		"the workflowid you want to get"
// @Success 200 {workflow} models.workflow
// @router /:id [get]
func (o *WorkflowController) Get() {
	id := o.Ctx.Input.Param(":id")
	o.Data["json"] = oclib.LoadOne(oclib.LibDataEnum(oclib.WORKFLOW), id)
	o.ServeJSON()
}

// @Title Delete
// @Description delete the workflow
// @Param	id		path 	string	true		"The workflowId you want to delete"
// @Success 200 {string} delete success!
// @router /:id [delete]
func (o *WorkflowController) Delete() {
	id := o.Ctx.Input.Param(":id")
	o.Data["json"] = oclib.DeleteOne(oclib.LibDataEnum(oclib.WORKFLOW), id)
	o.ServeJSON()
}

// @Title Check
// @Description check booking
// @Param	start_date		path 	string		"the booking start date" format "2006-01-02T15:04:05"
// @Param	end_date		path 	string		"the booking end date" format "2006-01-02T15:04:05"
// @Success 200 {object} models.object
// @router /check/:start_date/:end_date [get]
func (o *WorkflowController) Check() {
	// store and return Id or post with UUID
	date, err := time.Parse("2006-01-02T15:04:05", o.Ctx.Input.Param(":start_date"))
	date2, err2 := time.Parse("2006-01-02T15:04:05", o.Ctx.Input.Param(":end_date"))
	if err != nil || err2 != nil {
		o.Data["json"] = map[string]interface{}{
			"data": map[string]interface{}{
				"is_available": false,
			},
			"code":  400,
			"error": errors.New("invalid date format"),
		}
	} else {
		workflow := &w.Workflow{}
		workflow.Schedule = &w.WorkflowSchedule{Start: &date, End: &date2}
		isAvailable, err := workflow.CheckBooking(oclib.GetPath(oclib.LibDataEnum(oclib.BOOKING)) + "/oc/booking/check/:start_date/:end_date")
		code := 200
		if !isAvailable {
			code = 409
		}
		o.Data["json"] = map[string]interface{}{
			"data": map[string]interface{}{
				"is_available": isAvailable,
			},
			"code":  code,
			"error": err,
		}
	}
	o.ServeJSON()
}