1 // Package lemmy provides a client interface to the Lemmy HTTP API version 3.
2 package lemmy
3 
4 import (
5 	"fmt"
6 	"io/fs"
7 	"strconv"
8 	"strings"
9 	"time"
10 )
11 
12 type Community struct {
13 	ID        int    `json:"id"`
14 	FName     string `json:"name"`
15 	Title     string `json:"title"`
16 	Local     bool
17 	ActorID   string `json:"actor_id"`
18 	Published time.Time
19 }
20 
21 func (c *Community) Name() string       { return c.String() }
22 func (c *Community) Size() int64        { return 0 }
23 func (c *Community) Mode() fs.FileMode  { return fs.ModeDir | 0o0555 }
24 func (c *Community) ModTime() time.Time { return c.Published }
25 func (c *Community) IsDir() bool        { return c.Mode().IsDir() }
26 func (c *Community) Sys() interface{}   { return nil }
27 
28 func (c Community) String() string {
29 	if c.Local {
30 		return c.FName
31 	}
32 	noscheme := strings.TrimPrefix(c.ActorID, "https://")
33 	instance, _, _ := strings.Cut(noscheme, "/")
34 	return fmt.Sprintf("%s@%s", c.FName, instance)
35 }
36 
37 type Post struct {
38 	ID        int
39 	Title     string `json:"name"`
40 	Body      string
41 	CreatorID int `json:"creator_id"`
42 	URL       string
43 	Published time.Time
44 	Updated   time.Time
45 	Creator   Person `json:"-"`
46 }
47 
48 func (p *Post) Name() string { return strconv.Itoa(p.ID) }
49 
50 func (p *Post) Size() int64 {
51 	return int64(len(p.Body))
52 }
53 
54 func (p *Post) Mode() fs.FileMode { return fs.ModeDir | 0o0555 }
55 func (p *Post) IsDir() bool       { return p.Mode().IsDir() }
56 func (p *Post) Sys() interface{}  { return nil }
57 func (p *Post) ModTime() time.Time {
58 	if p.Updated.IsZero() {
59 		return p.Published
60 	}
61 	return p.Updated
62 }
63 
64 type Comment struct {
65 	ID     int
66 	PostID int `json:"post_id"`
67 	// Holds ordered comment IDs referenced by this comment
68 	// for threading.
69 	Path        string
70 	Content     string
71 	CreatorID   int `json:"creator_id"`
72 	Published   time.Time
73 	Updated     time.Time
74 	ActivityURL string `json:"ap_id"`
75 	Creator     Person `json:"-"`
76 }
77 
78 func (c *Comment) Name() string { return strconv.Itoa(c.ID) }
79 
80 func (c *Comment) Size() int64       { return 0 }
81 func (c *Comment) Mode() fs.FileMode { return 0444 }
82 func (c *Comment) ModTime() time.Time {
83 	if c.Updated.IsZero() {
84 		return c.Published
85 	}
86 	return c.Updated
87 }
88 func (c *Comment) IsDir() bool      { return c.Mode().IsDir() }
89 func (c *Comment) Sys() interface{} { return nil }
90 
91 // ParseCommentPath returns the comment IDs referenced by a Comment.
92 func ParseCommentPath(s string) []int {
93 	elems := strings.Split(s, ".")
94 	if len(elems) == 1 {
95 		return []int{}
96 	}
97 	if elems[0] != "0" {
98 		return []int{}
99 	}
100 	refs := make([]int, len(elems))
101 	for i, ele := range elems {
102 		id, err := strconv.Atoi(ele)
103 		if err != nil {
104 			return refs
105 		}
106 		refs[i] = id
107 	}
108 	return refs
109 }
110 
111 type Person struct {
112 	ID      int    `json:"id"`
113 	Name    string `json:"name"`
114 	ActorID string `json:"actor_id"`
115 	Local   bool   `json:"local"`
116 }
117 
118 func (p Person) String() string {
119 	if p.Local {
120 		return p.Name
121 	}
122 	noscheme := strings.TrimPrefix(p.ActorID, "https://")
123 	instance, _, _ := strings.Cut(noscheme, "/")
124 	return fmt.Sprintf("%s@%s", p.Name, instance)
125 }