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package diff
import (
"crypto/sha256"
"encoding/hex"
"encoding/json"
"sort"
"strings"
"github.com/router-for-me/CLIProxyAPI/v6/internal/config"
)
// ComputeOpenAICompatModelsHash returns a stable hash for OpenAI-compat models.
// Used to detect model list changes during hot reload.
func ComputeOpenAICompatModelsHash(models []config.OpenAICompatibilityModel) string {
keys := normalizeModelPairs(func(out func(key string)) {
for _, model := range models {
name := strings.TrimSpace(model.Name)
alias := strings.TrimSpace(model.Alias)
if name == "" && alias == "" {
continue
}
out(strings.ToLower(name) + "|" + strings.ToLower(alias))
}
})
return hashJoined(keys)
}
// ComputeVertexCompatModelsHash returns a stable hash for Vertex-compatible models.
func ComputeVertexCompatModelsHash(models []config.VertexCompatModel) string {
keys := normalizeModelPairs(func(out func(key string)) {
for _, model := range models {
name := strings.TrimSpace(model.Name)
alias := strings.TrimSpace(model.Alias)
if name == "" && alias == "" {
continue
}
out(strings.ToLower(name) + "|" + strings.ToLower(alias))
}
})
return hashJoined(keys)
}
// ComputeClaudeModelsHash returns a stable hash for Claude model aliases.
func ComputeClaudeModelsHash(models []config.ClaudeModel) string {
keys := normalizeModelPairs(func(out func(key string)) {
for _, model := range models {
name := strings.TrimSpace(model.Name)
alias := strings.TrimSpace(model.Alias)
if name == "" && alias == "" {
continue
}
out(strings.ToLower(name) + "|" + strings.ToLower(alias))
}
})
return hashJoined(keys)
}
// ComputeCodexModelsHash returns a stable hash for Codex model aliases.
func ComputeCodexModelsHash(models []config.CodexModel) string {
keys := normalizeModelPairs(func(out func(key string)) {
for _, model := range models {
name := strings.TrimSpace(model.Name)
alias := strings.TrimSpace(model.Alias)
if name == "" && alias == "" {
continue
}
out(strings.ToLower(name) + "|" + strings.ToLower(alias))
}
})
return hashJoined(keys)
}
// ComputeGeminiModelsHash returns a stable hash for Gemini model aliases.
func ComputeGeminiModelsHash(models []config.GeminiModel) string {
keys := normalizeModelPairs(func(out func(key string)) {
for _, model := range models {
name := strings.TrimSpace(model.Name)
alias := strings.TrimSpace(model.Alias)
if name == "" && alias == "" {
continue
}
out(strings.ToLower(name) + "|" + strings.ToLower(alias))
}
})
return hashJoined(keys)
}
// ComputeExcludedModelsHash returns a normalized hash for excluded model lists.
func ComputeExcludedModelsHash(excluded []string) string {
if len(excluded) == 0 {
return ""
}
normalized := make([]string, 0, len(excluded))
for _, entry := range excluded {
if trimmed := strings.TrimSpace(entry); trimmed != "" {
normalized = append(normalized, strings.ToLower(trimmed))
}
}
if len(normalized) == 0 {
return ""
}
sort.Strings(normalized)
data, _ := json.Marshal(normalized)
sum := sha256.Sum256(data)
return hex.EncodeToString(sum[:])
}
func normalizeModelPairs(collect func(out func(key string))) []string {
seen := make(map[string]struct{})
keys := make([]string, 0)
collect(func(key string) {
if _, exists := seen[key]; exists {
return
}
seen[key] = struct{}{}
keys = append(keys, key)
})
if len(keys) == 0 {
return nil
}
sort.Strings(keys)
return keys
}
func hashJoined(keys []string) string {
if len(keys) == 0 {
return ""
}
sum := sha256.Sum256([]byte(strings.Join(keys, "\n")))
return hex.EncodeToString(sum[:])
}
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