package collector

import (
	"encoding/json"
	"testing"

	"bee/audit/internal/schema"
)

// TestNVMeSmartLogUnmarshal verifies that nvme-cli JSON output (where most
// counters are quoted strings and field names differ from NVMe spec prose)
// is correctly parsed into nvmeSmartLog.
func TestNVMeSmartLogUnmarshal(t *testing.T) {
	t.Parallel()

	// Real nvme-cli output: counters are JSON strings, spare is "avail_spare",
	// percentage used is "percent_used".
	raw := `{
		"critical_warning": 0,
		"temperature": 310,
		"avail_spare": 100,
		"spare_thresh": 5,
		"percent_used": 0,
		"data_units_read": "10925415",
		"data_units_written": "8497672",
		"controller_busy_time": "305",
		"power_cycles": "53",
		"power_on_hours": "49",
		"unsafe_shutdowns": "22",
		"media_errors": "0",
		"num_err_log_entries": "0"
	}`
	var log nvmeSmartLog
	if err := json.Unmarshal([]byte(raw), &log); err != nil {
		t.Fatalf("json.Unmarshal failed: %v", err)
	}
	if log.PowerOnHours != 49 {
		t.Errorf("PowerOnHours=%d want 49", log.PowerOnHours)
	}
	if log.PowerCycles != 53 {
		t.Errorf("PowerCycles=%d want 53", log.PowerCycles)
	}
	if log.AvailableSpare != 100 {
		t.Errorf("AvailableSpare=%d want 100", log.AvailableSpare)
	}
	if log.SpareThreshold != 5 {
		t.Errorf("SpareThreshold=%d want 5", log.SpareThreshold)
	}
	if log.PercentageUsed != 0 {
		t.Errorf("PercentageUsed=%d want 0", log.PercentageUsed)
	}
	if log.Temperature != 310 {
		t.Errorf("Temperature=%d want 310", log.Temperature)
	}
	if log.MediaErrors != 0 {
		t.Errorf("MediaErrors=%d want 0", log.MediaErrors)
	}
	if log.UnsafeShutdowns != 22 {
		t.Errorf("UnsafeShutdowns=%d want 22", log.UnsafeShutdowns)
	}
}

func TestSetStorageHealthStatus(t *testing.T) {
	t.Parallel()

	tests := []struct {
		name   string
		health storageHealthStatus
		want   string
	}{
		{
			name:   "smart overall failed",
			health: storageHealthStatus{hasOverall: true, overallPassed: false},
			want:   statusCritical,
		},
		{
			name:   "nvme critical warning",
			health: storageHealthStatus{criticalWarning: 1},
			want:   statusCritical,
		},
		{
			name:   "pending sectors",
			health: storageHealthStatus{pendingSectors: 1},
			want:   statusCritical,
		},
		{
			name:   "media errors warning",
			health: storageHealthStatus{mediaErrors: 2},
			want:   statusWarning,
		},
		{
			name:   "reallocated warning",
			health: storageHealthStatus{reallocatedSectors: 1},
			want:   statusWarning,
		},
		{
			name:   "life remaining low",
			health: storageHealthStatus{lifeRemainingPct: 8},
			want:   statusWarning,
		},
		{
			name:   "healthy",
			health: storageHealthStatus{},
			want:   statusOK,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			var disk schema.HardwareStorage
			setStorageHealthStatus(&disk, tt.health)
			if disk.Status == nil || *disk.Status != tt.want {
				t.Fatalf("status=%v want %q", disk.Status, tt.want)
			}
		})
	}
}