package server
import (
"context"
"reflect"
"github.com/modelcontextprotocol/go-sdk/mcp"
)
// setupPromptsImpl delegates prompt registration to external files under ./prompts.
// It prefers .prompt (dotprompt-style) files parsed by LoadDotPrompts, and
// falls back to JSON prompt files parsed by LoadExternalPrompts.
func setupPromptsImpl(s *MCPServer) {
// Try dotprompt files first
if dot, err := LoadDotPrompts("./prompts"); err == nil && len(dot) > 0 {
for _, p := range dot {
// ensure slice fields are non-nil
v := reflect.ValueOf(p).Elem()
for i := 0; i < v.NumField(); i++ {
f := v.Field(i)
if f.Kind() == reflect.Slice && f.IsNil() && f.CanSet() {
f.Set(reflect.MakeSlice(f.Type(), 0, 0))
}
}
pcopy := p
s.server.AddPrompt(pcopy, func(ctx context.Context, session *mcp.ServerSession, params *mcp.GetPromptParams) (*mcp.GetPromptResult, error) {
return &mcp.GetPromptResult{Description: pcopy.Description}, nil
})
s.RegisteredPrompts = append(s.RegisteredPrompts, pcopy)
}
return
}
// Fallback: JSON prompt files
if ext, err := LoadExternalPrompts("./prompts"); err == nil && len(ext) > 0 {
for _, p := range ext {
v := reflect.ValueOf(p).Elem()
for i := 0; i < v.NumField(); i++ {
f := v.Field(i)
if f.Kind() == reflect.Slice && f.IsNil() && f.CanSet() {
f.Set(reflect.MakeSlice(f.Type(), 0, 0))
}
}
pcopy := p
s.server.AddPrompt(pcopy, func(ctx context.Context, session *mcp.ServerSession, params *mcp.GetPromptParams) (*mcp.GetPromptResult, error) {
return &mcp.GetPromptResult{Description: pcopy.Description}, nil
})
s.RegisteredPrompts = append(s.RegisteredPrompts, pcopy)
}
return
}
// Nothing to register if no external prompt files found.
}
