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// SPDX-FileCopyrightText: 2025 Shota FUJI <pockawoooh@gmail.com>
// SPDX-License-Identifier: AGPL-3.0-only

package workspace

import (
	"crypto/rand"

	"google.golang.org/protobuf/proto"

	"pocka.jp/x/yamori/backend/crypto"
	eventV1 "pocka.jp/x/yamori/proto/go/backend/events/v1"
	workspaceEvent "pocka.jp/x/yamori/proto/go/backend/events/workspace/v1"
	"pocka.jp/x/yamori/proto/go/backend/workspace/v1/types"
)

func GenerateAdminCreationPassword(password string) *eventV1.Event {
	hash, salt := crypto.SaltAndHashPassword([]byte(password))

	return &eventV1.Event{
		Event: &eventV1.Event_WorkspaceEvent{
			WorkspaceEvent: &workspaceEvent.Event{
				Event: &workspaceEvent.Event_AdminCreationPasswordGenerated{
					AdminCreationPasswordGenerated: &workspaceEvent.AdminCreationPasswordGenerated{
						PasswordHash: hash,
						PasswordSalt: salt,
					},
				},
			},
		},
	}
}

func ExpireAdminCreationPassword() *eventV1.Event {
	return &eventV1.Event{
		Event: &eventV1.Event_WorkspaceEvent{
			WorkspaceEvent: &workspaceEvent.Event{
				Event: &workspaceEvent.Event_AdminCreationPasswordExpired{
					AdminCreationPasswordExpired: &workspaceEvent.AdminCreationPasswordExpired{},
				},
			},
		},
	}
}

func CreateUser(id string, name string, displayName string, keyID []byte) *eventV1.Event {
	return &eventV1.Event{
		Event: &eventV1.Event_WorkspaceEvent{
			WorkspaceEvent: &workspaceEvent.Event{
				Event: &workspaceEvent.Event_UserCreated{
					UserCreated: &workspaceEvent.UserCreated{
						Id:          proto.String(id),
						Name:        proto.String(name),
						DisplayName: proto.String(displayName),
						KeyId:       keyID,
					},
				},
			},
		},
	}
}

func ConfigurePasswordLogin(userID string, password string) *eventV1.Event {
	hash, salt := crypto.SaltAndHashPassword([]byte(password))

	return &eventV1.Event{
		Event: &eventV1.Event_WorkspaceEvent{
			WorkspaceEvent: &workspaceEvent.Event{
				Event: &workspaceEvent.Event_PasswordLoginConfigured{
					PasswordLoginConfigured: &workspaceEvent.PasswordLoginConfigured{
						UserId:       proto.String(userID),
						PasswordHash: hash,
						PasswordSalt: salt,
					},
				},
			},
		},
	}
}

func GrantAdminAccess(userID string) *eventV1.Event {
	return &eventV1.Event{
		Event: &eventV1.Event_WorkspaceEvent{
			WorkspaceEvent: &workspaceEvent.Event{
				Event: &workspaceEvent.Event_AdminAccessGranted{
					AdminAccessGranted: &workspaceEvent.AdminAccessGranted{
						UserId: proto.String(userID),
					},
				},
			},
		},
	}
}

func ConfigureRandomLoginJwtSecret() *eventV1.Event {
	secret := make([]byte, 48)
	rand.Read(secret)

	return &eventV1.Event{
		Event: &eventV1.Event_WorkspaceEvent{
			WorkspaceEvent: &workspaceEvent.Event{
				Event: &workspaceEvent.Event_LoginJwtSecretConfigured{
					LoginJwtSecretConfigured: &workspaceEvent.LoginJwtSecretConfigured{
						Secret: secret,
					},
				},
			},
		},
	}
}

func GrantPermission(userID string, permissions []types.Permission) *eventV1.Event {
	return &eventV1.Event{
		Event: &eventV1.Event_WorkspaceEvent{
			WorkspaceEvent: &workspaceEvent.Event{
				Event: &workspaceEvent.Event_UserPermissionsGranted{
					UserPermissionsGranted: &workspaceEvent.UserPermissionsGranted{
						UserId:      proto.String(userID),
						Permissions: permissions,
					},
				},
			},
		},
	}
}

func RevokePermission(userID string, permissions []types.Permission) *eventV1.Event {
	return &eventV1.Event{
		Event: &eventV1.Event_WorkspaceEvent{
			WorkspaceEvent: &workspaceEvent.Event{
				Event: &workspaceEvent.Event_UserPermissionsRevoked{
					UserPermissionsRevoked: &workspaceEvent.UserPermissionsRevoked{
						UserId:      proto.String(userID),
						Permissions: permissions,
					},
				},
			},
		},
	}
}

func ConfigureAbbreviations(abbr *workspaceEvent.AbbreviationsConfigured) *eventV1.Event {
	return &eventV1.Event{
		Event: &eventV1.Event_WorkspaceEvent{
			WorkspaceEvent: &workspaceEvent.Event{
				Event: &workspaceEvent.Event_AbbreviationsConfigured{
					AbbreviationsConfigured: abbr,
				},
			},
		},
	}
}

func SetDisplayName(displayName string) *eventV1.Event {
	return &eventV1.Event{
		Event: &eventV1.Event_WorkspaceEvent{
			WorkspaceEvent: &workspaceEvent.Event{
				Event: &workspaceEvent.Event_WorkspaceDisplayNameSet{
					WorkspaceDisplayNameSet: &workspaceEvent.WorkspaceDisplayNameSet{
						DisplayName: proto.String(displayName),
					},
				},
			},
		},
	}
}

func DefineCustomAttributeDefinition(id string, displayName string) *eventV1.Event {
	return &eventV1.Event{
		Event: &eventV1.Event_WorkspaceEvent{
			WorkspaceEvent: &workspaceEvent.Event{
				Event: &workspaceEvent.Event_CustomAttributeDefined{
					CustomAttributeDefined: &workspaceEvent.CustomAttributeDefined{
						Id:          proto.String(id),
						DisplayName: proto.String(displayName),
					},
				},
			},
		},
	}
}