package tool

import (
	"testing"
	"time"

	"code.chimeric.al/chimerical/odidere/internal/config"
)

func TestTool_OpenAI(t *testing.T) {
	tool := &Tool{
		Name:        "test_tool",
		Description: "test description",
		Parameters:  map[string]any{"type": "object"},
	}
	openaiTool := tool.OpenAI()
	if openaiTool.Function.Name != "test_tool" {
		t.Errorf("expected name test_tool, got %s", openaiTool.Function.Name)
	}
}

func TestTool_ParseArguments(t *testing.T) {
	tool := &Tool{
		Arguments: []string{"--name {{.name}}", "{{if .flag}}--enabled{{end}}"},
	}
	tests := []struct {
		name     string
		args     string
		expected []string
	}{
		{
			name:     "basic",
			args:     `{"name": "test"}`,
			expected: []string{"--name test"},
		},
		{
			name:     "with flag",
			args:     `{"name": "test", "flag": true}`,
			expected: []string{"--name test", "--enabled"},
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got, err := tool.ParseArguments(tt.args)
			if err != nil {
				t.Fatalf("ParseArguments failed: %v", err)
			}
			if len(got) != len(tt.expected) {
				t.Errorf("expected len %d, got %d", len(tt.expected), len(got))
			}
			for i := range got {
				if got[i] != tt.expected[i] {
					t.Errorf("expected %q, got %q", tt.expected[i], got[i])
				}
			}
		})
	}
}

func TestNewTool(t *testing.T) {
	tests := []struct {
		name    string
		cfg     config.ToolConfig
		wantErr bool
	}{
		{
			name: "valid",
			cfg: config.ToolConfig{
				Name:        "test",
				Description: "desc",
				Command:     "ls",
				Timeout:     "10s",
			},
			wantErr: false,
		},
		{
			name: "invalid timeout",
			cfg: config.ToolConfig{
				Name:        "test",
				Description: "desc",
				Command:     "ls",
				Timeout:     "invalid",
			},
			wantErr: true,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			tool, err := NewTool(tt.cfg)
			if (err != nil) != tt.wantErr {
				t.Errorf("NewTool() error = %v, wantErr %v", err, tt.wantErr)
			}
			if err == nil {
				if tool.Name != tt.cfg.Name {
					t.Errorf("expected name %s, got %s", tt.cfg.Name, tool.Name)
				}
				if tt.cfg.Timeout == "10s" && tool.timeout != 10*time.Second {
					t.Errorf("expected timeout 10s, got %v", tool.timeout)
				}
			}
		})
	}
}

func TestRegistry_NewRegistry(t *testing.T) {
	tests := []struct {
		name    string
		tools   []config.ToolConfig
		wantErr bool
	}{
		{
			name: "valid",
			tools: []config.ToolConfig{
				{Name: "t1", Description: "d1", Command: "c1"},
				{Name: "t2", Description: "d2", Command: "c2"},
			},
			wantErr: false,
		},
		{
			name: "duplicate",
			tools: []config.ToolConfig{
				{Name: "t1", Description: "d1", Command: "c1"},
				{Name: "t1", Description: "d2", Command: "c2"},
			},
			wantErr: true,
		},
		{
			name: "invalid tool",
			tools: []config.ToolConfig{
				{Name: "t1", Description: "d1", Command: "c1", Timeout: "invalid"},
			},
			wantErr: true,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			_, err := NewRegistry(tt.tools)
			if (err != nil) != tt.wantErr {
				t.Errorf("NewRegistry() error = %v, wantErr %v", err, tt.wantErr)
			}
		})
	}
}