package controllers

import (
	"time"

	"cloud.o-forge.io/core/oc-catalog/models"
	"github.com/beego/beego/v2/core/logs"
	beego "github.com/beego/beego/v2/server/web"
)

type ScheduleController struct {
	beego.Controller
}

// @Title Create schedule
// @Description Create schedule for a workflow. It will return some future executions just as information
// @Param	dcName  		query 	string								true		"Name of the node (oc-catalog) from where the workflow comes."
// @Param	workflowName	query 	string								true		"Workflow Name"
// @Param	cron			query 	string								true		"Cron syntax with year. If no year is specified, will use the current"
// @Param	duration		query 	uint								true		"Duration in seconds"
// @Param   startDate    	query   time.Time  							true 		"RFC3339 time for startDate"
// @Param   stopDate    	query   time.Time  							true 		"RFC3339 time for stopDate"
// @Param	requirements	body 	models.ExecutionRequirementsModel	true		"The object content"
// @Success 200 {object} models.ScheduleInfo
// @Failure 403 Authentication issue
// @Failure 400 workflowName not found or empty
// // @Security jwtAPIToken
// @router /book [post]
func (u *ScheduleController) CreateSchedule(dcName, workflowName, cron string, duration uint, startDate, stopDate time.Time, requirements models.ExecutionRequirementsModel) {
	// token := u.Ctx.Input.GetData("jwtAPIToken").(string)

	//FIXME: Passing a date as "2021-07-15 00:00:00  0000 UTC" break the controller but return 200. Should return 4xx

	username := "asd"

	nextIters, err := models.CreateScheduleWorkflow(dcName, username, workflowName, cron, duration, startDate, stopDate, requirements)
	if err != nil {
		u.CustomAbort(400, err.Error())
	}

	u.Data["json"] = nextIters
	u.ServeJSON()

	return
}

//TODO: This node corresponds to a unique DC, which it owns. We must restructure the code in order to
// allow a unique DC. And maybe discuss more this point

// @Title Check if schedule can be created in this DC
// @Description Check for availability of this DC
// @Param	cron			query 	string								true		"Cron syntax"
// @Param	duration		query 	uint								true		"Duration in seconds"
// @Param   startDate    	query   time.Time  							true 		"RFC3339 time for startDate"
// @Param   stopDate    	query   time.Time  							true 		"RFC3339 time for stopDate"
// @Param	requirements	body 	models.ExecutionRequirementsModel	true		"The object content"
// @Success 200 The schedule can be created
// @Failure 403 Authentication issue
// @Failure 400 Other error. Check the output
// // @Security jwtAPIToken
// @router /check [post]
func (u *ScheduleController) CheckSchedule(cron string, duration uint, startDate, stopDate time.Time, requirements models.ExecutionRequirementsModel) {
	// token := u.Ctx.Input.GetData("jwtAPIToken").(string)

	// username := "asd"

	if cron == "" {
		u.CustomAbort(400, "Tasks cronString must not be empty")
	}

	// Check Dates
	if startDate.After(stopDate) || startDate.Equal(stopDate) {
		u.CustomAbort(400, "startDate must be before stopDate")
	}

	if startDate.Before(time.Now().UTC()) {
		u.CustomAbort(400, "Current server time ("+time.Now().UTC().String()+") is after the startDate ("+startDate.String()+")")
	}

	err := models.CheckSchedule(cron, duration, startDate, stopDate, requirements)
	if err != nil {
		logs.Warning(err)
		u.CustomAbort(400, err.Error())
	}

	// u.Data["json"] = nextIters
	// u.ServeJSON()

	return
}

// @Title Get schedules
// @Description Get a list of next startDates schedules (inclusive). If timezone is not specified, will assume UTC
// @Param	startDate		query 	time.Time		true		"Start date"
// @Param	stopDate		query 	time.Time		true		"End date"
// @Success 200 {object} []models.ScheduleDB
// @Success 201 Too many elements within the range of dates
// @Failure 403 Authentication issue
// @Failure 400 Other error. Check the output
// // @Security jwtAPIToken
// @router / [get]
func (u *ScheduleController) GetSchedules(startDate time.Time, stopDate time.Time) {
	// token := u.Ctx.Input.GetData("jwtAPIToken").(string)

	// username := "asd"

	data, maxLimit, err := models.GetSchedules(startDate, stopDate)
	if err != nil {
		logs.Warning(err)
		u.CustomAbort(400, err.Error())
	}

	if maxLimit {
		u.Ctx.Output.Status = 201
	}

	u.Data["json"] = data
	u.ServeJSON()

	return
}

// @Title Get next schedule
// @Description Give a date, get the next date where there are at least on schedule. If no hours specified, will assume 00:00
// @Param	baseDate		query 	time.Time		true		"Base date"
// @Success 200 {object} *time.Time
// @Failure 403 Authentication issue
// @Failure 400 Other error. Check the output
// // @Security jwtAPIToken
// @router /next [get]
func (u *ScheduleController) GetNextSchedules(baseDate time.Time) {
	// token := u.Ctx.Input.GetData("jwtAPIToken").(string)

	// username := "asd"

	futureDate := models.GetFarSchedules(baseDate, true)

	u.Data["json"] = futureDate
	u.ServeJSON()

	return
}

// @Title Get previous schedule
// @Description Give a date, get the previous date where there are at least on schedule. If no hours specified, will assume 00:00
// @Param	baseDate		query 	time.Time		true		"Base date"
// @Success 200 {object} *time.Time
// @Failure 403 Authentication issue
// @Failure 400 Other error. Check the output
// // @Security jwtAPIToken
// @router /previous [get]
func (u *ScheduleController) GetPreviousSchedules(baseDate time.Time) {
	// token := u.Ctx.Input.GetData("jwtAPIToken").(string)

	// username := "asd"

	futureDate := models.GetFarSchedules(baseDate, false)

	u.Data["json"] = futureDate
	u.ServeJSON()

	return
}