package services

import (
	"testing"

	"github.com/breakpilot/school-service/internal/models"
)

func TestCreateTimetableSolutionRequest_NoBindingTags(t *testing.T) {
	// CreateSolution accepts an empty name; the binding tag is intentionally
	// absent. Both states (with + without name) must pass validation.
	tests := []struct {
		name    string
		req     models.CreateTimetableSolutionRequest
		wantErr bool
	}{
		{"empty", models.CreateTimetableSolutionRequest{}, false},
		{"with name", models.CreateTimetableSolutionRequest{Name: "Schuljahr 26/27 Test"}, false},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if (validate.Struct(tt.req) != nil) != tt.wantErr {
				t.Errorf("unexpected validation outcome")
			}
		})
	}
}

func TestCreateTimetableSolutionRequest_ParentAndLimit_Validation(t *testing.T) {
	uid := "00000000-0000-0000-0000-000000000001"
	secs := func(n int) *int { return &n }
	parent := func(s string) *string { return &s }

	tests := []struct {
		name    string
		req     models.CreateTimetableSolutionRequest
		wantErr bool
	}{
		{"valid parent + limit", models.CreateTimetableSolutionRequest{ParentSolutionID: parent(uid), SecondsLimit: secs(60)}, false},
		{"bad parent uuid", models.CreateTimetableSolutionRequest{ParentSolutionID: parent("not-a-uuid")}, true},
		{"limit too low", models.CreateTimetableSolutionRequest{SecondsLimit: secs(1)}, true},
		{"limit too high", models.CreateTimetableSolutionRequest{SecondsLimit: secs(9999)}, true},
		{"limit at boundary (5)", models.CreateTimetableSolutionRequest{SecondsLimit: secs(5)}, false},
		{"limit at boundary (600)", models.CreateTimetableSolutionRequest{SecondsLimit: secs(600)}, false},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if (validate.Struct(tt.req) != nil) != tt.wantErr {
				t.Errorf("unexpected validation outcome for %s", tt.name)
			}
		})
	}
}