1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
package anki
import (
"fmt"
"io"
"os"
"path/filepath"
"strings"
"time"
)
// APKGGenerator creates Anki package files (.apkg)
type APKGGenerator struct {
deckName string
deckID int64
modelID int64
modelIDBgBg int64 // Separate model for bg-bg cards
cards []Card
mediaFiles map[string]int // maps original filename to media number
mediaCounter int
schemer *SQLiteSchemer
packager *ZipPackager
templates *CardTemplate
}
// NewAPKGGenerator creates a new APKG generator
func NewAPKGGenerator(deckName string) *APKGGenerator {
// Generate IDs based on timestamp to ensure uniqueness
now := time.Now().UnixMilli()
return &APKGGenerator{
deckName: deckName,
deckID: now,
modelID: now + 1,
modelIDBgBg: now + 2,
cards: make([]Card, 0),
mediaFiles: make(map[string]int),
mediaCounter: 0,
schemer: NewSQLiteSchemer(),
packager: NewZipPackager(),
templates: MustCardTemplate(),
}
}
// AddCard adds a card to the generator
func (g *APKGGenerator) AddCard(card Card) {
g.cards = append(g.cards, card)
}
// GenerateAPKG creates an .apkg file
func (g *APKGGenerator) GenerateAPKG(outputPath string) error {
// Create temporary directory for building the package
tempDir, err := os.MkdirTemp("", "anki_export_*")
if err != nil {
return fmt.Errorf("failed to create temp directory: %w", err)
}
defer func() {
_ = os.RemoveAll(tempDir)
}()
// Copy media files FIRST (this populates g.mediaFiles map)
if err := g.copyMediaFiles(tempDir); err != nil {
return fmt.Errorf("failed to copy media files: %w", err)
}
// Create media mapping file
if err := g.createMediaMapping(tempDir); err != nil {
return fmt.Errorf("failed to create media mapping: %w", err)
}
// Create SQLite database (this uses g.mediaFiles map)
dbPath := filepath.Join(tempDir, "collection.anki2")
if err := g.createDatabase(dbPath); err != nil {
return fmt.Errorf("failed to create database: %w", err)
}
// Create the .apkg zip file with a timestamped name
timestamp := time.Now().Format("2006-01-02-15:04:05")
safeDeckName := strings.ReplaceAll(g.deckName, " ", "_")
safeDeckName = strings.ReplaceAll(safeDeckName, "/", "-")
numberOfCards := len(g.cards)
outputDir := filepath.Dir(outputPath)
finalName := fmt.Sprintf("%s-%s-%d.apkg", safeDeckName, timestamp, numberOfCards)
finalPath := filepath.Join(outputDir, finalName)
if err := g.createZipPackage(tempDir, finalPath); err != nil {
return fmt.Errorf("failed to create zip package: %w", err)
}
return nil
}
func (g *APKGGenerator) createDatabase(dbPath string) error {
return g.schemer.CreateDatabase(dbPath, g, g.templates)
}
func (g *APKGGenerator) createZipPackage(tempDir, outputPath string) error {
return g.packager.CreatePackage(tempDir, outputPath)
}
// copyMediaFiles copies media files and assigns them numbers
func (g *APKGGenerator) copyMediaFiles(tempDir string) error {
for _, card := range g.cards {
// Copy audio file (front audio for bg-bg, only audio for en-bg)
if card.AudioFile != "" && fileExists(card.AudioFile) {
cardDirID := filepath.Base(filepath.Dir(card.AudioFile))
originalFilename := filepath.Base(card.AudioFile)
uniqueFilename := fmt.Sprintf("%s_%s", cardDirID, originalFilename)
if _, exists := g.mediaFiles[uniqueFilename]; !exists {
targetPath := filepath.Join(tempDir, fmt.Sprintf("%d", g.mediaCounter))
if err := copyFile(card.AudioFile, targetPath); err != nil {
return fmt.Errorf("failed to copy audio file %s: %w", card.AudioFile, err)
}
g.mediaFiles[uniqueFilename] = g.mediaCounter
g.mediaCounter++
}
}
// Copy back audio file (only for bg-bg cards)
if card.AudioFileBack != "" && fileExists(card.AudioFileBack) {
cardDirID := filepath.Base(filepath.Dir(card.AudioFileBack))
originalFilename := filepath.Base(card.AudioFileBack)
uniqueFilename := fmt.Sprintf("%s_%s", cardDirID, originalFilename)
if _, exists := g.mediaFiles[uniqueFilename]; !exists {
targetPath := filepath.Join(tempDir, fmt.Sprintf("%d", g.mediaCounter))
if err := copyFile(card.AudioFileBack, targetPath); err != nil {
return fmt.Errorf("failed to copy back audio file %s: %w", card.AudioFileBack, err)
}
g.mediaFiles[uniqueFilename] = g.mediaCounter
g.mediaCounter++
}
}
// Copy image file
if card.ImageFile != "" && fileExists(card.ImageFile) {
cardDirID := filepath.Base(filepath.Dir(card.ImageFile))
originalFilename := filepath.Base(card.ImageFile)
uniqueFilename := fmt.Sprintf("%s_%s", cardDirID, originalFilename)
if _, exists := g.mediaFiles[uniqueFilename]; !exists {
targetPath := filepath.Join(tempDir, fmt.Sprintf("%d", g.mediaCounter))
if err := copyFile(card.ImageFile, targetPath); err != nil {
return fmt.Errorf("failed to copy image file %s: %w", card.ImageFile, err)
}
g.mediaFiles[uniqueFilename] = g.mediaCounter
g.mediaCounter++
}
}
}
return nil
}
// createMediaMapping creates the media mapping JSON file
func (g *APKGGenerator) createMediaMapping(tempDir string) error {
// Create reverse mapping (number -> filename)
mapping := make(map[string]string)
for filename, num := range g.mediaFiles {
mapping[fmt.Sprintf("%d", num)] = filename
}
data, err := marshalJSON("media", mapping)
if err != nil {
return err
}
return os.WriteFile(filepath.Join(tempDir, "media"), data, 0644)
}
// Helper functions
func fileExists(path string) bool {
_, err := os.Stat(path)
return err == nil
}
func copyFile(src, dst string) error {
srcFile, err := os.Open(src)
if err != nil {
return err
}
defer func() {
_ = srcFile.Close()
}()
dstFile, err := os.Create(dst)
if err != nil {
return err
}
defer func() {
_ = dstFile.Close()
}()
_, err = io.Copy(dstFile, srcFile)
return err
}
|
