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package main

import (
	"context"
	"slices"
	"strings"
	"testing"

	"mm/internal/config"
	"mm/internal/detector"
	"mm/internal/engine"

	"github.com/firebase/genkit/go/genkit"
)

// A `tools:` entry is declared to the model under its own name.
func TestDeclaredToolsAreAssembled(t *testing.T) {
	withConfig(t, func(c *config.Config) {
		c.Tools = []config.DeclaredTool{{Name: "release", Description: "d", Command: []string{"./release.sh"}}}
	})
	if names := assembledNames(t); !slices.Contains(names, "release") {
		t.Errorf("names = %v, want release among them", names)
	}
}

// A declared tool that would take an MCP tool's name is skipped with a
// warning; the others are still declared.
func TestDeclaredToolTakingAnMCPNameIsSkipped(t *testing.T) {
	withConfig(t, func(c *config.Config) {
		c.Tools = []config.DeclaredTool{
			{Name: "proj_release", Description: "d", Command: []string{"a"}},
			{Name: "status", Description: "d", Command: []string{"b"}},
		}
	})
	e := &engine.Engine{G: genkit.Init(context.Background())}
	set := toolSet{names: []string{"proj_release"}}
	assembleDeclared(e, detector.NewLoopDetector(10, 3), &set)
	if !slices.Equal(set.names, []string{"proj_release", "status"}) || len(set.tools) != 1 {
		t.Errorf("names %v, %d tool(s)", set.names, len(set.tools))
	}
	if len(set.warnings) != 1 || !strings.Contains(set.warnings[0], "proj_release skipped") {
		t.Errorf("warnings = %v", set.warnings)
	}
}