package config

import (
	"testing"
	"time"
)

func TestLoadReadsRequestTimeout(t *testing.T) {
	t.Setenv("REQUEST_TIMEOUT_MS", "1200")

	cfg := Load()

	if cfg.RequestTimeout != 1200*time.Millisecond {
		t.Fatalf("RequestTimeout = %s, want 1.2s", cfg.RequestTimeout)
	}
}

func TestLoadReadsPlatformRelease(t *testing.T) {
	t.Setenv("PLATFORM_RELEASE", "platform-20260704153005")

	cfg := Load()

	if cfg.PlatformRelease != "platform-20260704153005" {
		t.Fatalf("PlatformRelease = %q", cfg.PlatformRelease)
	}
}

func TestLoadReadsAMapServerAPIKey(t *testing.T) {
	t.Setenv("AMAP_API_KEY", "server-map-key")

	cfg := Load()

	if cfg.AMapAPIKey != "server-map-key" {
		t.Fatalf("AMapAPIKey = %q", cfg.AMapAPIKey)
	}
}

func TestLoadSelectsProductionDataModeWhenMySQLIsConfigured(t *testing.T) {
	t.Setenv("DATA_MODE", "")
	t.Setenv("MYSQL_DSN", "user:password@tcp(db:3306)/platform")
	if cfg := Load(); cfg.DataMode != "production" {
		t.Fatalf("DataMode = %q, want production", cfg.DataMode)
	}
}

func TestLoadKeepsExplicitMockDataMode(t *testing.T) {
	t.Setenv("DATA_MODE", "mock")
	t.Setenv("MYSQL_DSN", "user:password@tcp(db:3306)/platform")
	if cfg := Load(); cfg.DataMode != "mock" {
		t.Fatalf("DataMode = %q, want mock", cfg.DataMode)
	}
}

func TestLoadReadsAlertNotificationDispatcherSettings(t *testing.T) {
	t.Setenv("ALERT_NOTIFICATION_TARGETS_JSON", `[{"id":"night-shift","label":"夜班负责人","channels":["sms"]}]`)
	t.Setenv("ALERT_NOTIFICATION_SMS_URL", "https://gateway.example.test/sms")
	t.Setenv("ALERT_NOTIFICATION_SMS_SECRET", "signing-secret")
	t.Setenv("ALERT_NOTIFICATION_BATCH_SIZE", "48")
	t.Setenv("ALERT_NOTIFICATION_POLL_INTERVAL_MS", "750")
	t.Setenv("ALERT_NOTIFICATION_LEASE_SEC", "45")
	t.Setenv("ALERT_NOTIFICATION_TIMEOUT_MS", "8000")

	cfg := Load()
	if cfg.AlertNotificationTargetsJSON == "" || cfg.AlertNotificationSMSURL != "https://gateway.example.test/sms" || cfg.AlertNotificationSMSSecret != "signing-secret" {
		t.Fatalf("notification target or gateway settings were not loaded: %+v", cfg)
	}
	if cfg.AlertNotificationBatchSize != 48 || cfg.AlertNotificationPollInterval != 750*time.Millisecond || cfg.AlertNotificationLease != 45*time.Second || cfg.AlertNotificationTimeout != 8*time.Second {
		t.Fatalf("notification worker timing settings were not loaded: %+v", cfg)
	}
}

func TestLoadReadsHistoryCleanupAutomationSettings(t *testing.T) {
	t.Setenv("HISTORY_EXPORT_CLEANUP_AUTOMATION_ENABLED", "true")
	t.Setenv("HISTORY_EXPORT_CLEANUP_POLL_SEC", "45")
	t.Setenv("HISTORY_EXPORT_CLEANUP_LEASE_SEC", "420")

	cfg := Load()
	if !cfg.HistoryCleanupAutomation || cfg.HistoryCleanupPollInterval != 45*time.Second || cfg.HistoryCleanupLease != 7*time.Minute {
		t.Fatalf("history cleanup automation settings were not loaded: %+v", cfg)
	}
}