package config

import (
	"strings"
	"testing"
)

func TestNotificationConfigSupportsOnlyNoopMode(t *testing.T) {
	tests := []struct {
		name         string
		section      string
		wantLoad     string
		wantValidate string
	}{
		{
			name:    "default noop mode",
			section: "",
		},
		{
			name:    "explicit noop mode",
			section: "notification:\n  mode: noop\n",
		},
		{
			name:     "backend is rejected",
			section:  "notification:\n  backend: email\n",
			wantLoad: "field backend not found",
		},
		{
			name:     "recipient is rejected",
			section:  "notification:\n  recipient: party@example.com\n",
			wantLoad: "field recipient not found",
		},
		{
			name:         "provider mode is rejected",
			section:      "notification:\n  mode: email\n",
			wantValidate: "pipeline.notification.mode must be \"noop\"",
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			pipelinePath, sessionPath := writeConfigFiles(t, testPipelineBaseYAML+"\n"+tt.section, testSessionBaseYAML)
			cfg, err := Load(pipelinePath, sessionPath)
			if tt.wantLoad != "" {
				if err == nil || !strings.Contains(err.Error(), tt.wantLoad) {
					t.Fatalf("Load() error = %v, want %q", err, tt.wantLoad)
				}
				return
			}
			if err != nil {
				t.Fatalf("Load() error = %v", err)
			}
			if got := cfg.Pipeline.Notification.Mode; tt.wantValidate == "" && got != DefaultNotificationMode {
				t.Fatalf("notification.mode = %q, want %q", got, DefaultNotificationMode)
			}
			err = Validate(cfg)
			if tt.wantValidate != "" {
				if err == nil || !strings.Contains(err.Error(), tt.wantValidate) {
					t.Fatalf("Validate() error = %v, want %q", err, tt.wantValidate)
				}
				return
			}
			if err != nil {
				t.Fatalf("Validate() error = %v", err)
			}
		})
	}
}