// internal/skills/brain/skill.go
package brain

import (
	"encoding/json"

	"github.com/mathiasbq/supervisor/internal/registry"
)

// Config holds brain skill configuration.
type Config struct {
	IngestBaseURL string // base URL of the ingestion HTTP server, e.g. http://localhost:3300
}

// Skill implements registry.Skill for brain_query and brain_write.
type Skill struct {
	cfg Config
}

// New constructs a brain Skill.
func New(cfg Config) *Skill { return &Skill{cfg: cfg} }

// Name returns the skill name used for routing.
func (s *Skill) Name() string { return "brain" }

// Tools returns the MCP tool definitions for brain_query and brain_write.
func (s *Skill) Tools() []registry.ToolDef {
	schema := func(required []string, props map[string]any) json.RawMessage {
		b, _ := json.Marshal(map[string]any{"type": "object", "required": required, "properties": props})
		return b
	}
	str := map[string]any{"type": "string"}
	num := map[string]any{"type": "integer"}

	return []registry.ToolDef{
		{
			Name:        "brain_query",
			Description: "Search the hyperguild brain wiki for relevant knowledge. Call this before starting any significant task.",
			InputSchema: schema([]string{"query"}, map[string]any{
				"query": str,
				"limit": num,
			}),
		},
		{
			Name:        "brain_write",
			Description: "Write a raw knowledge note to the brain for later ingestion into the wiki.",
			InputSchema: schema([]string{"content"}, map[string]any{
				"content":  str,
				"type":     str,
				"domain":   str,
				"filename": str,
			}),
		},
	}
}