package workflowtriggerhistories

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 WorkflowStatus string

const (
	WorkflowStatusAborted      WorkflowStatus = "Aborted"
	WorkflowStatusCancelled    WorkflowStatus = "Cancelled"
	WorkflowStatusFailed       WorkflowStatus = "Failed"
	WorkflowStatusFaulted      WorkflowStatus = "Faulted"
	WorkflowStatusIgnored      WorkflowStatus = "Ignored"
	WorkflowStatusNotSpecified WorkflowStatus = "NotSpecified"
	WorkflowStatusPaused       WorkflowStatus = "Paused"
	WorkflowStatusRunning      WorkflowStatus = "Running"
	WorkflowStatusSkipped      WorkflowStatus = "Skipped"
	WorkflowStatusSucceeded    WorkflowStatus = "Succeeded"
	WorkflowStatusSuspended    WorkflowStatus = "Suspended"
	WorkflowStatusTimedOut     WorkflowStatus = "TimedOut"
	WorkflowStatusWaiting      WorkflowStatus = "Waiting"
)

func PossibleValuesForWorkflowStatus() []string {
	return []string{
		string(WorkflowStatusAborted),
		string(WorkflowStatusCancelled),
		string(WorkflowStatusFailed),
		string(WorkflowStatusFaulted),
		string(WorkflowStatusIgnored),
		string(WorkflowStatusNotSpecified),
		string(WorkflowStatusPaused),
		string(WorkflowStatusRunning),
		string(WorkflowStatusSkipped),
		string(WorkflowStatusSucceeded),
		string(WorkflowStatusSuspended),
		string(WorkflowStatusTimedOut),
		string(WorkflowStatusWaiting),
	}
}

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

func parseWorkflowStatus(input string) (*WorkflowStatus, error) {
	vals := map[string]WorkflowStatus{
		"aborted":      WorkflowStatusAborted,
		"cancelled":    WorkflowStatusCancelled,
		"failed":       WorkflowStatusFailed,
		"faulted":      WorkflowStatusFaulted,
		"ignored":      WorkflowStatusIgnored,
		"notspecified": WorkflowStatusNotSpecified,
		"paused":       WorkflowStatusPaused,
		"running":      WorkflowStatusRunning,
		"skipped":      WorkflowStatusSkipped,
		"succeeded":    WorkflowStatusSucceeded,
		"suspended":    WorkflowStatusSuspended,
		"timedout":     WorkflowStatusTimedOut,
		"waiting":      WorkflowStatusWaiting,
	}
	if v, ok := vals[strings.ToLower(input)]; ok {
		return &v, nil
	}

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