// Copyright 2022 Harness Inc. All rights reserved.
// Use of this source code is governed by the Polyform Free Trial License
// that can be found in the LICENSE.md file for this repository.

package enum

// PullReqState defines pull request state.
type PullReqState string

func (PullReqState) Enum() []interface{} {
	return toInterfaceSlice(GetAllPullReqStates())
}

// PullReqState enumeration.
const (
	PullReqStateOpen     PullReqState = "open"
	PullReqStateMerged   PullReqState = "merged"
	PullReqStateClosed   PullReqState = "closed"
	PullReqStateRejected PullReqState = "rejected"
)

func GetAllPullReqStates() []PullReqState {
	return []PullReqState{
		PullReqStateOpen,
		PullReqStateMerged,
		PullReqStateClosed,
		PullReqStateRejected,
	}
}

// PullReqSort defines pull request attribute that can be used for sorting.
type PullReqSort string

func (PullReqSort) Enum() []interface{} {
	return toInterfaceSlice(GetAllPullReqSorts())
}

// PullReqSort enumeration.
const (
	PullReqSortNumber  = "number"
	PullReqSortCreated = "created"
	PullReqSortEdited  = "edited"
)

func GetAllPullReqSorts() []PullReqSort {
	return []PullReqSort{
		PullReqSortNumber,
		PullReqSortCreated,
		PullReqSortEdited,
	}
}

var rawPullReqSorts = toSortedStrings(GetAllPullReqActivityTypes())

// ParsePullReqSort parses the PullReqSort.
func ParsePullReqSort(s PullReqSort) (PullReqSort, bool) {
	if existsInSortedSlice(rawPullReqSorts, string(s)) {
		return s, true
	}
	return PullReqSortNumber, false // sorting by the pull request number is default
}

// PullReqActivityType defines pull request activity message type.
// Essentially, the Type determines the structure of the pull request activity's Payload structure.
type PullReqActivityType string

func (PullReqActivityType) Enum() []interface{} {
	return toInterfaceSlice(GetAllPullReqActivityTypes())
}

// PullReqActivityType enumeration.
const (
	PullReqActivityTypeComment      PullReqActivityType = "comment"
	PullReqActivityTypeCodeComment  PullReqActivityType = "code-comment"
	PullReqActivityTypeTitleChange  PullReqActivityType = "title-change"
	PullReqActivityTypeReviewSubmit PullReqActivityType = "review-submit"
	PullReqActivityTypeMerge        PullReqActivityType = "merge"
)

func GetAllPullReqActivityTypes() []PullReqActivityType {
	return []PullReqActivityType{
		PullReqActivityTypeComment,
		PullReqActivityTypeCodeComment,
		PullReqActivityTypeTitleChange,
		PullReqActivityTypeReviewSubmit,
	}
}

var rawPullReqActivityTypes = toSortedStrings(GetAllPullReqActivityTypes())

// ParsePullReqActivityType parses the pull request activity type.
func ParsePullReqActivityType(t PullReqActivityType) (PullReqActivityType, bool) {
	if existsInSortedSlice(rawPullReqActivityTypes, string(t)) {
		return t, true
	}
	return "", false
}

// PullReqActivityKind defines kind of pull request activity system message.
// Kind defines the source of the pull request activity entry:
// Whether it's generated by the system, it's a user comment or a part of code review.
type PullReqActivityKind string

func (PullReqActivityKind) Enum() []interface{} {
	return toInterfaceSlice(GetAllPullReqActivityKinds())
}

// PullReqActivityKind enumeration.
const (
	PullReqActivityKindSystem      PullReqActivityKind = "system"
	PullReqActivityKindComment     PullReqActivityKind = "comment"
	PullReqActivityKindCodeComment PullReqActivityKind = "code"
)

func GetAllPullReqActivityKinds() []PullReqActivityKind {
	return []PullReqActivityKind{
		PullReqActivityKindSystem,
		PullReqActivityKindComment,
		PullReqActivityKindCodeComment,
	}
}

var rawPullReqActivityKinds = toSortedStrings(GetAllPullReqActivityKinds())

// ParsePullReqActivityKind parses the pull request activity type.
func ParsePullReqActivityKind(k PullReqActivityKind) (PullReqActivityKind, bool) {
	if existsInSortedSlice(rawPullReqActivityKinds, string(k)) {
		return k, true
	}
	return "", false
}

// PullReqReviewDecision defines state of a pull request review.
type PullReqReviewDecision string

func (PullReqReviewDecision) Enum() []interface{} {
	return toInterfaceSlice(GetAllPullReqReviewDecisions())
}

// PullReqReviewDecision enumeration.
const (
	PullReqReviewDecisionPending   PullReqReviewDecision = "pending"
	PullReqReviewDecisionReviewed  PullReqReviewDecision = "reviewed"
	PullReqReviewDecisionApproved  PullReqReviewDecision = "approved"
	PullReqReviewDecisionChangeReq PullReqReviewDecision = "changereq"
)

func GetAllPullReqReviewDecisions() []PullReqReviewDecision {
	return []PullReqReviewDecision{
		PullReqReviewDecisionPending,
		PullReqReviewDecisionReviewed,
		PullReqReviewDecisionApproved,
		PullReqReviewDecisionChangeReq,
	}
}

var rawPullReqReviewDecisions = toSortedStrings(GetAllPullReqReviewDecisions())

// ParsePullReqReviewDecision parses the pull request review state type.
func ParsePullReqReviewDecision(decision PullReqReviewDecision) (PullReqReviewDecision, bool) {
	if existsInSortedSlice(rawPullReqReviewDecisions, string(decision)) {
		return decision, true
	}
	return "", false
}

// PullReqReviewerType defines type of a pull request reviewer.
type PullReqReviewerType string

func (PullReqReviewerType) Enum() []interface{} {
	return toInterfaceSlice(GetAllPullReqReviewerTypes())
}

// PullReqReviewerType enumeration.
const (
	PullReqReviewerTypeRequested    PullReqReviewerType = "requested"
	PullReqReviewerTypeAssigned     PullReqReviewerType = "assigned"
	PullReqReviewerTypeSelfAssigned PullReqReviewerType = "self_assigned"
)

func GetAllPullReqReviewerTypes() []PullReqReviewerType {
	return []PullReqReviewerType{
		PullReqReviewerTypeRequested,
		PullReqReviewerTypeAssigned,
		PullReqReviewerTypeSelfAssigned,
	}
}

var rawPullReqReviewerTypes = toSortedStrings(GetAllPullReqReviewerTypes())

// ParsePullReqReviewerType parses the pull request reviewer type.
func ParsePullReqReviewerType(reviewerType PullReqReviewerType) (PullReqReviewerType, bool) {
	if existsInSortedSlice(rawPullReqReviewerTypes, string(reviewerType)) {
		return reviewerType, true
	}
	return "", false
}

// MergeMethod represents the approach to merge commits into base branch.
type MergeMethod string

func (MergeMethod) Enum() []interface{} {
	return toInterfaceSlice(GetAllMergeMethods())
}

const (
	// MergeMethodMerge create merge commit.
	MergeMethodMerge MergeMethod = "merge"
	// MergeMethodSquash squash commits into single commit before merging.
	MergeMethodSquash MergeMethod = "squash"
	// MergeMethodRebase rebase before merging.
	MergeMethodRebase MergeMethod = "rebase"
)

func GetAllMergeMethods() []MergeMethod {
	return []MergeMethod{
		MergeMethodMerge,
		MergeMethodSquash,
		MergeMethodRebase,
	}
}

var rawMergeMethods = toSortedStrings(GetAllMergeMethods())

// ParseMergeMethod parses the pull request review state type.
func ParseMergeMethod(method MergeMethod) (MergeMethod, bool) {
	if existsInSortedSlice(rawMergeMethods, string(method)) {
		return method, true
	}
	return "", false
}