package agents

import (
	"encoding/json"
	"fmt"
	"strings"
)

// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License. See NOTICE.txt in the project root for license information.

type AgentStatus string

const (
	AgentStatusExecuting         AgentStatus = "Executing"
	AgentStatusOffline           AgentStatus = "Offline"
	AgentStatusOnline            AgentStatus = "Online"
	AgentStatusRegistering       AgentStatus = "Registering"
	AgentStatusRequiresAttention AgentStatus = "RequiresAttention"
	AgentStatusUnregistering     AgentStatus = "Unregistering"
)

func PossibleValuesForAgentStatus() []string {
	return []string{
		string(AgentStatusExecuting),
		string(AgentStatusOffline),
		string(AgentStatusOnline),
		string(AgentStatusRegistering),
		string(AgentStatusRequiresAttention),
		string(AgentStatusUnregistering),
	}
}

func (s *AgentStatus) UnmarshalJSON(bytes []byte) error {
	var decoded string
	if err := json.Unmarshal(bytes, &decoded); err != nil {
		return fmt.Errorf("unmarshaling: %+v", err)
	}
	out, err := parseAgentStatus(decoded)
	if err != nil {
		return fmt.Errorf("parsing %q: %+v", decoded, err)
	}
	*s = *out
	return nil
}

func parseAgentStatus(input string) (*AgentStatus, error) {
	vals := map[string]AgentStatus{
		"executing":         AgentStatusExecuting,
		"offline":           AgentStatusOffline,
		"online":            AgentStatusOnline,
		"registering":       AgentStatusRegistering,
		"requiresattention": AgentStatusRequiresAttention,
		"unregistering":     AgentStatusUnregistering,
	}
	if v, ok := vals[strings.ToLower(input)]; ok {
		return &v, nil
	}

	// otherwise presume it's an undefined value and best-effort it
	out := AgentStatus(input)
	return &out, nil
}

type DayOfWeek string

const (
	DayOfWeekFriday    DayOfWeek = "Friday"
	DayOfWeekMonday    DayOfWeek = "Monday"
	DayOfWeekSaturday  DayOfWeek = "Saturday"
	DayOfWeekSunday    DayOfWeek = "Sunday"
	DayOfWeekThursday  DayOfWeek = "Thursday"
	DayOfWeekTuesday   DayOfWeek = "Tuesday"
	DayOfWeekWednesday DayOfWeek = "Wednesday"
)

func PossibleValuesForDayOfWeek() []string {
	return []string{
		string(DayOfWeekFriday),
		string(DayOfWeekMonday),
		string(DayOfWeekSaturday),
		string(DayOfWeekSunday),
		string(DayOfWeekThursday),
		string(DayOfWeekTuesday),
		string(DayOfWeekWednesday),
	}
}

func (s *DayOfWeek) UnmarshalJSON(bytes []byte) error {
	var decoded string
	if err := json.Unmarshal(bytes, &decoded); err != nil {
		return fmt.Errorf("unmarshaling: %+v", err)
	}
	out, err := parseDayOfWeek(decoded)
	if err != nil {
		return fmt.Errorf("parsing %q: %+v", decoded, err)
	}
	*s = *out
	return nil
}

func parseDayOfWeek(input string) (*DayOfWeek, error) {
	vals := map[string]DayOfWeek{
		"friday":    DayOfWeekFriday,
		"monday":    DayOfWeekMonday,
		"saturday":  DayOfWeekSaturday,
		"sunday":    DayOfWeekSunday,
		"thursday":  DayOfWeekThursday,
		"tuesday":   DayOfWeekTuesday,
		"wednesday": DayOfWeekWednesday,
	}
	if v, ok := vals[strings.ToLower(input)]; ok {
		return &v, nil
	}

	// otherwise presume it's an undefined value and best-effort it
	out := DayOfWeek(input)
	return &out, nil
}

type Minute int64

const (
	MinuteThreeZero Minute = 30
	MinuteZero      Minute = 0
)

func PossibleValuesForMinute() []int64 {
	return []int64{
		int64(MinuteThreeZero),
		int64(MinuteZero),
	}
}

type ProvisioningState string

const (
	ProvisioningStateCanceled  ProvisioningState = "Canceled"
	ProvisioningStateDeleting  ProvisioningState = "Deleting"
	ProvisioningStateFailed    ProvisioningState = "Failed"
	ProvisioningStateSucceeded ProvisioningState = "Succeeded"
)

func PossibleValuesForProvisioningState() []string {
	return []string{
		string(ProvisioningStateCanceled),
		string(ProvisioningStateDeleting),
		string(ProvisioningStateFailed),
		string(ProvisioningStateSucceeded),
	}
}

func (s *ProvisioningState) UnmarshalJSON(bytes []byte) error {
	var decoded string
	if err := json.Unmarshal(bytes, &decoded); err != nil {
		return fmt.Errorf("unmarshaling: %+v", err)
	}
	out, err := parseProvisioningState(decoded)
	if err != nil {
		return fmt.Errorf("parsing %q: %+v", decoded, err)
	}
	*s = *out
	return nil
}

func parseProvisioningState(input string) (*ProvisioningState, error) {
	vals := map[string]ProvisioningState{
		"canceled":  ProvisioningStateCanceled,
		"deleting":  ProvisioningStateDeleting,
		"failed":    ProvisioningStateFailed,
		"succeeded": ProvisioningStateSucceeded,
	}
	if v, ok := vals[strings.ToLower(input)]; ok {
		return &v, nil
	}

	// otherwise presume it's an undefined value and best-effort it
	out := ProvisioningState(input)
	return &out, nil
}
