1// SPDX-FileCopyrightText: Amolith <amolith@secluded.site>
 2//
 3// SPDX-License-Identifier: AGPL-3.0-or-later
 4
 5// Package validate provides input validation helpers.
 6package validate
 7
 8import (
 9	"errors"
10	"fmt"
11
12	"git.secluded.site/go-lunatask"
13)
14
15// ErrInvalidReference indicates the input is not a valid UUID or deep link.
16var ErrInvalidReference = errors.New("invalid reference: expected UUID or lunatask:// deep link")
17
18// Reference parses a UUID or Lunatask deep link and returns the normalised UUID.
19// Accepts formats:
20//   - UUID: "3bbf1923-64ae-4bcf-96a9-9bb86c799dab"
21//   - Deep link: "lunatask://areas/3bbf1923-64ae-4bcf-96a9-9bb86c799dab"
22func Reference(input string) (string, error) {
23	_, id, err := lunatask.ParseDeepLink(input)
24	if err != nil {
25		return "", fmt.Errorf("%w: %s", ErrInvalidReference, input)
26	}
27
28	return id, nil
29}
30
31// ErrInvalidStatus indicates the status value is not recognized.
32var ErrInvalidStatus = errors.New("invalid status")
33
34// TaskStatus validates and normalizes a task status string.
35// Returns the corresponding lunatask.TaskStatus or an error if invalid.
36func TaskStatus(input string) (lunatask.TaskStatus, error) {
37	status, err := lunatask.ParseTaskStatus(input)
38	if err != nil {
39		return "", fmt.Errorf("%w: %s", ErrInvalidStatus, input)
40	}
41
42	return status, nil
43}
44
45// ErrInvalidMotivation indicates the motivation value is not recognized.
46var ErrInvalidMotivation = errors.New("invalid motivation")
47
48// Motivation validates and normalizes a motivation string.
49// Returns the corresponding lunatask.Motivation or an error if invalid.
50func Motivation(input string) (lunatask.Motivation, error) {
51	motivation, err := lunatask.ParseMotivation(input)
52	if err != nil {
53		return "", fmt.Errorf("%w: %s", ErrInvalidMotivation, input)
54	}
55
56	return motivation, nil
57}
58
59// ErrInvalidRelationship indicates the relationship strength is not recognized.
60var ErrInvalidRelationship = errors.New("invalid relationship strength")
61
62// RelationshipStrength validates and normalizes a relationship strength string.
63// Returns the corresponding lunatask.RelationshipStrength or an error if invalid.
64func RelationshipStrength(input string) (lunatask.RelationshipStrength, error) {
65	rel, err := lunatask.ParseRelationshipStrength(input)
66	if err != nil {
67		return "", fmt.Errorf("%w: %s", ErrInvalidRelationship, input)
68	}
69
70	return rel, nil
71}