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
|
package image
import (
"context"
"fmt"
"strings"
)
func normalizeCustomPrompt(prompt string) string {
prompt = strings.TrimSpace(prompt)
if len(prompt) > maxCustomPrompt {
prompt = prompt[:maxCustomPrompt-3] + "..."
}
return prompt
}
func (c *GeminiProvider) resolveTranslation(_ context.Context, opts *SearchOptions, translation string) (string, error) {
if translation != "" {
fmt.Printf("Using provided translation: %s -> %s\n", opts.Query, translation)
return translation, nil
}
return opts.Query, nil
}
func (c *GeminiProvider) resolvePrompt(ctx context.Context, opts *SearchOptions, translatedWord string) (string, error) {
if customPrompt := normalizeCustomPrompt(opts.CustomPrompt); customPrompt != "" {
fmt.Printf("Using custom prompt: %s\n", customPrompt)
return customPrompt, nil
}
return c.createEducationalPrompt(ctx, opts.Query, translatedWord), nil
}
func (c *GeminiProvider) buildPrompt(ctx context.Context, opts *SearchOptions) (string, string, error) {
if opts == nil {
return "", "", &SearchError{
Provider: geminiSource,
Code: "INVALID_OPTIONS",
Message: "search options are required",
}
}
translation := strings.TrimSpace(opts.Translation)
if customPrompt := normalizeCustomPrompt(opts.CustomPrompt); customPrompt != "" {
fmt.Printf("Using custom prompt: %s\n", customPrompt)
return customPrompt, translation, nil
}
translatedWord, err := c.resolveTranslation(ctx, opts, translation)
if err != nil {
return "", "", err
}
prompt, err := c.resolvePrompt(ctx, opts, translatedWord)
if err != nil {
return "", "", err
}
return prompt, translatedWord, nil
}
// createEducationalPrompt generates a prompt optimized for image generation.
func (c *GeminiProvider) createEducationalPrompt(ctx context.Context, query, translation string) string {
subject := promptSubject(translation, query)
scene, err := c.generateSceneDescription(ctx, query, translation)
if err != nil {
fmt.Printf(" Failed to generate scene: %v, using basic prompt\n", err)
scene = ""
}
if scene != "" {
scene = sanitizeSceneDescription(scene)
if !usableSceneDescription(scene) {
fmt.Printf(" Scene response was too short or generic, using basic prompt\n")
scene = ""
}
}
selectedStyle := chooseArtisticStyle()
if selectedStyle == defaultArtisticStyle {
fmt.Printf(" No artistic styles available, using generic prompt\n")
}
fmt.Printf(" Using image style: %s\n", selectedStyle)
return buildEducationalPrompt(selectedStyle, scene, subject)
}
func (c *GeminiProvider) generateSceneDescription(ctx context.Context, query, translation string) (string, error) {
fmt.Printf("Gemini Scene Generation: Creating scene for %q (%s)\n", query, translation)
scene, err := geminiGenerateText(
ctx,
c,
c.textModelName(),
"You are helping create educational flashcards for language learning. Generate a brief, vivid scene description that incorporates the given English word in a memorable, contextual way. The scene should be visually interesting and help with memory retention. Keep it to 1-2 sentences, focusing on visual elements that can be illustrated. The subject (the English word) should be the clear focal point of the image, prominent and centered.",
fmt.Sprintf("Create a scene description for the English word %q that would make a memorable flashcard image. Make sure %q is the main focus and most prominent element in the scene.", translation, translation),
0.7,
100,
)
if err != nil {
return "", fmt.Errorf("scene generation failed: %w", err)
}
scene = sanitizeSceneDescription(scene)
if !usableSceneDescription(scene) {
return "", fmt.Errorf("scene generation returned unusable content")
}
fmt.Printf("Generated scene: %s\n", scene)
return scene, nil
}
|
