// Copyright 2014 The Gogs Authors. All rights reserved.
// Copyright 2017 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

package auth

import (
	"net/url"
	"strings"

	"code.gitea.io/gitea/models"
	"code.gitea.io/gitea/modules/setting"
	"code.gitea.io/gitea/routers/utils"

	"gitea.com/macaron/binding"
	"gitea.com/macaron/macaron"
	"github.com/unknwon/com"
)

// _______________________________________    _________.______________________ _______________.___.
// \______   \_   _____/\______   \_____  \  /   _____/|   \__    ___/\_____  \\______   \__  |   |
//  |       _/|    __)_  |     ___//   |   \ \_____  \ |   | |    |    /   |   \|       _//   |   |
//  |    |   \|        \ |    |   /    |    \/        \|   | |    |   /    |    \    |   \\____   |
//  |____|_  /_______  / |____|   \_______  /_______  /|___| |____|   \_______  /____|_  // ______|
//         \/        \/                   \/        \/                        \/       \/ \/

// CreateRepoForm form for creating repository
type CreateRepoForm struct {
	UID         int64  `binding:"Required"`
	RepoName    string `binding:"Required;AlphaDashDot;MaxSize(100)"`
	Private     bool
	Description string `binding:"MaxSize(255)"`
	AutoInit    bool
	Gitignores  string
	IssueLabels string
	License     string
	Readme      string
}

// Validate validates the fields
func (f *CreateRepoForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// MigrateRepoForm form for migrating repository
type MigrateRepoForm struct {
	// required: true
	CloneAddr    string `json:"clone_addr" binding:"Required"`
	AuthUsername string `json:"auth_username"`
	AuthPassword string `json:"auth_password"`
	// required: true
	UID int64 `json:"uid" binding:"Required"`
	// required: true
	RepoName     string `json:"repo_name" binding:"Required;AlphaDashDot;MaxSize(100)"`
	Mirror       bool   `json:"mirror"`
	Private      bool   `json:"private"`
	Description  string `json:"description" binding:"MaxSize(255)"`
	Wiki         bool   `json:"wiki"`
	Milestones   bool   `json:"milestones"`
	Labels       bool   `json:"labels"`
	Issues       bool   `json:"issues"`
	PullRequests bool   `json:"pull_requests"`
	Releases     bool   `json:"releases"`
}

// Validate validates the fields
func (f *MigrateRepoForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// ParseRemoteAddr checks if given remote address is valid,
// and returns composed URL with needed username and password.
// It also checks if given user has permission when remote address
// is actually a local path.
func (f MigrateRepoForm) ParseRemoteAddr(user *models.User) (string, error) {
	remoteAddr := strings.TrimSpace(f.CloneAddr)

	// Remote address can be HTTP/HTTPS/Git URL or local path.
	if strings.HasPrefix(remoteAddr, "http://") ||
		strings.HasPrefix(remoteAddr, "https://") ||
		strings.HasPrefix(remoteAddr, "git://") {
		u, err := url.Parse(remoteAddr)
		if err != nil {
			return "", models.ErrInvalidCloneAddr{IsURLError: true}
		}
		if len(f.AuthUsername)+len(f.AuthPassword) > 0 {
			u.User = url.UserPassword(f.AuthUsername, f.AuthPassword)
		}
		remoteAddr = u.String()
	} else if !user.CanImportLocal() {
		return "", models.ErrInvalidCloneAddr{IsPermissionDenied: true}
	} else if !com.IsDir(remoteAddr) {
		return "", models.ErrInvalidCloneAddr{IsInvalidPath: true}
	}

	return remoteAddr, nil
}

// RepoSettingForm form for changing repository settings
type RepoSettingForm struct {
	RepoName       string `binding:"Required;AlphaDashDot;MaxSize(100)"`
	Description    string `binding:"MaxSize(255)"`
	Website        string `binding:"ValidUrl;MaxSize(255)"`
	Interval       string
	MirrorAddress  string
	MirrorUsername string
	MirrorPassword string
	Private        bool
	EnablePrune    bool

	// Advanced settings
	EnableWiki                       bool
	EnableExternalWiki               bool
	ExternalWikiURL                  string
	EnableIssues                     bool
	EnableExternalTracker            bool
	ExternalTrackerURL               string
	TrackerURLFormat                 string
	TrackerIssueStyle                string
	EnablePulls                      bool
	PullsIgnoreWhitespace            bool
	PullsAllowMerge                  bool
	PullsAllowRebase                 bool
	PullsAllowRebaseMerge            bool
	PullsAllowSquash                 bool
	EnableTimetracker                bool
	AllowOnlyContributorsToTrackTime bool
	EnableIssueDependencies          bool
	IsArchived                       bool

	// Admin settings
	EnableHealthCheck                     bool
	EnableCloseIssuesViaCommitInAnyBranch bool
}

// Validate validates the fields
func (f *RepoSettingForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// __________                             .__
// \______   \____________    ____   ____ |  |__
//  |    |  _/\_  __ \__  \  /    \_/ ___\|  |  \
//  |    |   \ |  | \// __ \|   |  \  \___|   Y  \
//  |______  / |__|  (____  /___|  /\___  >___|  /
//         \/             \/     \/     \/     \/

// ProtectBranchForm form for changing protected branch settings
type ProtectBranchForm struct {
	Protected               bool
	EnableWhitelist         bool
	WhitelistUsers          string
	WhitelistTeams          string
	EnableMergeWhitelist    bool
	MergeWhitelistUsers     string
	MergeWhitelistTeams     string
	EnableStatusCheck       bool `xorm:"NOT NULL DEFAULT false"`
	StatusCheckContexts     []string
	RequiredApprovals       int64
	ApprovalsWhitelistUsers string
	ApprovalsWhitelistTeams string
}

// Validate validates the fields
func (f *ProtectBranchForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

//  __      __      ___.   .__    .__            __
// /  \    /  \ ____\_ |__ |  |__ |  |__   ____ |  | __
// \   \/\/   // __ \| __ \|  |  \|  |  \ /  _ \|  |/ /
//  \        /\  ___/| \_\ \   Y  \   Y  (  <_> )    <
//   \__/\  /  \___  >___  /___|  /___|  /\____/|__|_ \
//        \/       \/    \/     \/     \/            \/

// WebhookForm form for changing web hook
type WebhookForm struct {
	Events       string
	Create       bool
	Delete       bool
	Fork         bool
	Issues       bool
	IssueComment bool
	Release      bool
	Push         bool
	PullRequest  bool
	Repository   bool
	Active       bool
	BranchFilter string `binding:"GlobPattern"`
}

// PushOnly if the hook will be triggered when push
func (f WebhookForm) PushOnly() bool {
	return f.Events == "push_only"
}

// SendEverything if the hook will be triggered any event
func (f WebhookForm) SendEverything() bool {
	return f.Events == "send_everything"
}

// ChooseEvents if the hook will be triggered choose events
func (f WebhookForm) ChooseEvents() bool {
	return f.Events == "choose_events"
}

// NewWebhookForm form for creating web hook
type NewWebhookForm struct {
	PayloadURL  string `binding:"Required;ValidUrl"`
	HTTPMethod  string `binding:"Required;In(POST,GET)"`
	ContentType int    `binding:"Required"`
	Secret      string
	WebhookForm
}

// Validate validates the fields
func (f *NewWebhookForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// NewGogshookForm form for creating gogs hook
type NewGogshookForm struct {
	PayloadURL  string `binding:"Required;ValidUrl"`
	ContentType int    `binding:"Required"`
	Secret      string
	WebhookForm
}

// Validate validates the fields
func (f *NewGogshookForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// NewSlackHookForm form for creating slack hook
type NewSlackHookForm struct {
	PayloadURL string `binding:"Required;ValidUrl"`
	Channel    string `binding:"Required"`
	Username   string
	IconURL    string
	Color      string
	WebhookForm
}

// Validate validates the fields
func (f *NewSlackHookForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// HasInvalidChannel validates the channel name is in the right format
func (f NewSlackHookForm) HasInvalidChannel() bool {
	return !utils.IsValidSlackChannel(f.Channel)
}

// NewDiscordHookForm form for creating discord hook
type NewDiscordHookForm struct {
	PayloadURL string `binding:"Required;ValidUrl"`
	Username   string
	IconURL    string
	WebhookForm
}

// Validate validates the fields
func (f *NewDiscordHookForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// NewDingtalkHookForm form for creating dingtalk hook
type NewDingtalkHookForm struct {
	PayloadURL string `binding:"Required;ValidUrl"`
	WebhookForm
}

// Validate validates the fields
func (f *NewDingtalkHookForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// NewTelegramHookForm form for creating telegram hook
type NewTelegramHookForm struct {
	BotToken string `binding:"Required"`
	ChatID   string `binding:"Required"`
	WebhookForm
}

// Validate validates the fields
func (f *NewTelegramHookForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// NewMSTeamsHookForm form for creating MS Teams hook
type NewMSTeamsHookForm struct {
	PayloadURL string `binding:"Required;ValidUrl"`
	WebhookForm
}

// Validate validates the fields
func (f *NewMSTeamsHookForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// .___
// |   | ______ ________ __   ____
// |   |/  ___//  ___/  |  \_/ __ \
// |   |\___ \ \___ \|  |  /\  ___/
// |___/____  >____  >____/  \___  >
//          \/     \/            \/

// CreateIssueForm form for creating issue
type CreateIssueForm struct {
	Title       string `binding:"Required;MaxSize(255)"`
	LabelIDs    string `form:"label_ids"`
	AssigneeIDs string `form:"assignee_ids"`
	Ref         string `form:"ref"`
	MilestoneID int64
	AssigneeID  int64
	Content     string
	Files       []string
}

// Validate validates the fields
func (f *CreateIssueForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// CreateCommentForm form for creating comment
type CreateCommentForm struct {
	Content string
	Status  string `binding:"OmitEmpty;In(reopen,close)"`
	Files   []string
}

// Validate validates the fields
func (f *CreateCommentForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// ReactionForm form for adding and removing reaction
type ReactionForm struct {
	Content string `binding:"Required;In(+1,-1,laugh,confused,heart,hooray)"`
}

// Validate validates the fields
func (f *ReactionForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// IssueLockForm form for locking an issue
type IssueLockForm struct {
	Reason string `binding:"Required"`
}

// Validate validates the fields
func (i *IssueLockForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, i, ctx.Locale)
}

// HasValidReason checks to make sure that the reason submitted in
// the form matches any of the values in the config
func (i IssueLockForm) HasValidReason() bool {
	if strings.TrimSpace(i.Reason) == "" {
		return true
	}

	for _, v := range setting.Repository.Issue.LockReasons {
		if v == i.Reason {
			return true
		}
	}

	return false
}

//    _____  .__.__                   __
//   /     \ |__|  |   ____   _______/  |_  ____   ____   ____
//  /  \ /  \|  |  | _/ __ \ /  ___/\   __\/  _ \ /    \_/ __ \
// /    Y    \  |  |_\  ___/ \___ \  |  | (  <_> )   |  \  ___/
// \____|__  /__|____/\___  >____  > |__|  \____/|___|  /\___  >
//         \/             \/     \/                   \/     \/

// CreateMilestoneForm form for creating milestone
type CreateMilestoneForm struct {
	Title    string `binding:"Required;MaxSize(50)"`
	Content  string
	Deadline string
}

// Validate validates the fields
func (f *CreateMilestoneForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// .____          ___.          .__
// |    |   _____ \_ |__   ____ |  |
// |    |   \__  \ | __ \_/ __ \|  |
// |    |___ / __ \| \_\ \  ___/|  |__
// |_______ (____  /___  /\___  >____/
//         \/    \/    \/     \/

// CreateLabelForm form for creating label
type CreateLabelForm struct {
	ID          int64
	Title       string `binding:"Required;MaxSize(50)" locale:"repo.issues.label_title"`
	Description string `binding:"MaxSize(200)" locale:"repo.issues.label_description"`
	Color       string `binding:"Required;Size(7)" locale:"repo.issues.label_color"`
}

// Validate validates the fields
func (f *CreateLabelForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// InitializeLabelsForm form for initializing labels
type InitializeLabelsForm struct {
	TemplateName string `binding:"Required"`
}

// Validate validates the fields
func (f *InitializeLabelsForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// __________      .__  .__    __________                                     __
// \______   \__ __|  | |  |   \______   \ ____  ________ __   ____   _______/  |_
//  |     ___/  |  \  | |  |    |       _// __ \/ ____/  |  \_/ __ \ /  ___/\   __\
//  |    |   |  |  /  |_|  |__  |    |   \  ___< <_|  |  |  /\  ___/ \___ \  |  |
//  |____|   |____/|____/____/  |____|_  /\___  >__   |____/  \___  >____  > |__|
//                                     \/     \/   |__|           \/     \/

// MergePullRequestForm form for merging Pull Request
// swagger:model MergePullRequestOption
type MergePullRequestForm struct {
	// required: true
	// enum: merge,rebase,rebase-merge,squash
	Do                string `binding:"Required;In(merge,rebase,rebase-merge,squash)"`
	MergeTitleField   string
	MergeMessageField string
}

// Validate validates the fields
func (f *MergePullRequestForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// CodeCommentForm form for adding code comments for PRs
type CodeCommentForm struct {
	Content  string `binding:"Required"`
	Side     string `binding:"Required;In(previous,proposed)"`
	Line     int64
	TreePath string `form:"path" binding:"Required"`
	IsReview bool   `form:"is_review"`
	Reply    int64  `form:"reply"`
}

// Validate validates the fields
func (f *CodeCommentForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// SubmitReviewForm for submitting a finished code review
type SubmitReviewForm struct {
	Content string
	Type    string `binding:"Required;In(approve,comment,reject)"`
}

// Validate validates the fields
func (f *SubmitReviewForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// ReviewType will return the corresponding reviewtype for type
func (f SubmitReviewForm) ReviewType() models.ReviewType {
	switch f.Type {
	case "approve":
		return models.ReviewTypeApprove
	case "comment":
		return models.ReviewTypeComment
	case "reject":
		return models.ReviewTypeReject
	default:
		return models.ReviewTypeUnknown
	}
}

// HasEmptyContent checks if the content of the review form is empty.
func (f SubmitReviewForm) HasEmptyContent() bool {
	reviewType := f.ReviewType()

	return (reviewType == models.ReviewTypeComment || reviewType == models.ReviewTypeReject) &&
		len(strings.TrimSpace(f.Content)) == 0
}

// __________       .__
// \______   \ ____ |  |   ____ _____    ______ ____
//  |       _// __ \|  | _/ __ \\__  \  /  ___// __ \
//  |    |   \  ___/|  |_\  ___/ / __ \_\___ \\  ___/
//  |____|_  /\___  >____/\___  >____  /____  >\___  >
//         \/     \/          \/     \/     \/     \/

// NewReleaseForm form for creating release
type NewReleaseForm struct {
	TagName    string `binding:"Required;GitRefName;MaxSize(255)"`
	Target     string `form:"tag_target" binding:"Required;MaxSize(255)"`
	Title      string `binding:"Required;MaxSize(255)"`
	Content    string
	Draft      string
	Prerelease bool
	Files      []string
}

// Validate validates the fields
func (f *NewReleaseForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// EditReleaseForm form for changing release
type EditReleaseForm struct {
	Title      string `form:"title" binding:"Required;MaxSize(255)"`
	Content    string `form:"content"`
	Draft      string `form:"draft"`
	Prerelease bool   `form:"prerelease"`
	Files      []string
}

// Validate validates the fields
func (f *EditReleaseForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

//  __      __.__ __   .__
// /  \    /  \__|  | _|__|
// \   \/\/   /  |  |/ /  |
//  \        /|  |    <|  |
//   \__/\  / |__|__|_ \__|
//        \/          \/

// NewWikiForm form for creating wiki
type NewWikiForm struct {
	Title   string `binding:"Required"`
	Content string `binding:"Required"`
	Message string
}

// Validate validates the fields
// FIXME: use code generation to generate this method.
func (f *NewWikiForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// ___________    .___.__  __
// \_   _____/  __| _/|__|/  |_
//  |    __)_  / __ | |  \   __\
//  |        \/ /_/ | |  ||  |
// /_______  /\____ | |__||__|
//         \/      \/

// EditRepoFileForm form for changing repository file
type EditRepoFileForm struct {
	TreePath      string `binding:"Required;MaxSize(500)"`
	Content       string `binding:"Required"`
	CommitSummary string `binding:"MaxSize(100)"`
	CommitMessage string
	CommitChoice  string `binding:"Required;MaxSize(50)"`
	NewBranchName string `binding:"GitRefName;MaxSize(100)"`
	LastCommit    string
}

// Validate validates the fields
func (f *EditRepoFileForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// EditPreviewDiffForm form for changing preview diff
type EditPreviewDiffForm struct {
	Content string
}

// Validate validates the fields
func (f *EditPreviewDiffForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

//  ____ ___        .__                    .___
// |    |   \______ |  |   _________     __| _/
// |    |   /\____ \|  |  /  _ \__  \   / __ |
// |    |  / |  |_> >  |_(  <_> ) __ \_/ /_/ |
// |______/  |   __/|____/\____(____  /\____ |
//           |__|                   \/      \/
//

// UploadRepoFileForm form for uploading repository file
type UploadRepoFileForm struct {
	TreePath      string `binding:"MaxSize(500)"`
	CommitSummary string `binding:"MaxSize(100)"`
	CommitMessage string
	CommitChoice  string `binding:"Required;MaxSize(50)"`
	NewBranchName string `binding:"GitRefName;MaxSize(100)"`
	Files         []string
}

// Validate validates the fields
func (f *UploadRepoFileForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// RemoveUploadFileForm form for removing uploaded file
type RemoveUploadFileForm struct {
	File string `binding:"Required;MaxSize(50)"`
}

// Validate validates the fields
func (f *RemoveUploadFileForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// ________         .__          __
// \______ \   ____ |  |   _____/  |_  ____
// |    |  \_/ __ \|  | _/ __ \   __\/ __ \
// |    `   \  ___/|  |_\  ___/|  | \  ___/
// /_______  /\___  >____/\___  >__|  \___  >
//         \/     \/          \/          \/

// DeleteRepoFileForm form for deleting repository file
type DeleteRepoFileForm struct {
	CommitSummary string `binding:"MaxSize(100)"`
	CommitMessage string
	CommitChoice  string `binding:"Required;MaxSize(50)"`
	NewBranchName string `binding:"GitRefName;MaxSize(100)"`
	LastCommit    string
}

// Validate validates the fields
func (f *DeleteRepoFileForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// ___________.__                 ___________                     __
// \__    ___/|__| _____   ____   \__    ___/___________    ____ |  | __ ___________
// |    |   |  |/     \_/ __ \    |    |  \_  __ \__  \ _/ ___\|  |/ // __ \_  __ \
// |    |   |  |  Y Y  \  ___/    |    |   |  | \// __ \\  \___|    <\  ___/|  | \/
// |____|   |__|__|_|  /\___  >   |____|   |__|  (____  /\___  >__|_ \\___  >__|
// \/     \/                        \/     \/     \/    \/

// AddTimeManuallyForm form that adds spent time manually.
type AddTimeManuallyForm struct {
	Hours   int `binding:"Range(0,1000)"`
	Minutes int `binding:"Range(0,1000)"`
}

// Validate validates the fields
func (f *AddTimeManuallyForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}

// SaveTopicForm form for save topics for repository
type SaveTopicForm struct {
	Topics []string `binding:"topics;Required;"`
}

// DeadlineForm hold the validation rules for deadlines
type DeadlineForm struct {
	DateString string `form:"date" binding:"Required;Size(10)"`
}

// Validate validates the fields
func (f *DeadlineForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
	return validate(errs, ctx.Data, f, ctx.Locale)
}