package agent

import (
	"os"
	"path/filepath"
	"testing"
)

func TestInferSkillNamesFromToolCall_ReadFileSkillMarkdown(t *testing.T) {
	workspace := t.TempDir()
	skillDir := filepath.Join(workspace, "skills", "three-one")
	if err := os.MkdirAll(skillDir, 0o755); err != nil {
		t.Fatalf("MkdirAll: %v", err)
	}
	if err := os.WriteFile(
		filepath.Join(skillDir, "SKILL.md"),
		[]byte("---\nname: three-one\ndescription: test\n---\n# Three One\n"),
		0o644,
	); err != nil {
		t.Fatalf("WriteFile: %v", err)
	}

	cb := NewContextBuilder(workspace)
	ts := &turnState{
		workspace: workspace,
		agent: &AgentInstance{
			Workspace:      workspace,
			ContextBuilder: cb,
		},
	}

	got := inferSkillNamesFromToolCall(ts, "read_file", map[string]any{
		"path": filepath.Join(workspace, "skills", "three-one", "SKILL.md"),
	})
	if len(got) != 1 || got[0] != "three-one" {
		t.Fatalf("inferSkillNamesFromToolCall = %v, want [three-one]", got)
	}
}

func TestInferSkillNamesFromToolCall_NonSkillFileIgnored(t *testing.T) {
	workspace := t.TempDir()
	ts := &turnState{workspace: workspace}

	got := inferSkillNamesFromToolCall(ts, "read_file", map[string]any{
		"path": filepath.Join(workspace, "README.md"),
	})
	if len(got) != 0 {
		t.Fatalf("inferSkillNamesFromToolCall = %v, want empty", got)
	}
}