package toolsrv

import (
	"encoding/json"

	"ollie/skills"
)

// SetSkillsRegistry attaches a skills registry to the execute server.
// The server uses it to serve skill_list, skill_load, and skill_active.
func (e *Server) SetSkillsRegistry(r *skills.Registry) {
	e.skillsRegistry = r
}

// ListSkillsTools returns ToolInfo entries for the skill_* built-ins.
// These are included alongside the standard tool_* tools.
func ListSkillsTools(skillsReg *skills.Registry, sessionID string) []ToolInfo {
	if skillsReg == nil {
		return nil
	}
	tools := []ToolInfo{
		{
			Name: "skill_list",
			Description: `List available skill modules with name and description.

Usage: {"name": "skillname"} — if name is provided, loads that skill.
Otherwise lists all skills with descriptions.`,
			InputSchema: json.RawMessage(`{
				"type": "object",
				"properties": {}
			}`),
		},
		{
			Name: "skill_load",
			Description: `Load a skill module into the current session's context.

Usage: {"name": "skillname"}

The skill content (SKILL.md body) is injected into the agent's context
and persists across turns.`,
			InputSchema: json.RawMessage(`{
				"type": "object",
				"required": ["name"],
				"properties": {
					"name": {"type": "string", "description": "Skill name to load."}
				}
			}`),
		},
		{
			Name: "skill_active",
			Description: `List skills currently loaded in this session.

Usage: (no arguments)

Returns loaded skill names, one per line.`,
			InputSchema: json.RawMessage(`{
				"type": "object",
				"properties": {}
			}`),
		},
	}
	return tools
}

// dispatchSkillList lists all available skills from the global registry.