package models

import (
	"encoding/json"
	"time"
)

// ListClusterResponse represents the response for a list of clusters.
type ListClusterResponse struct {
	List      ListCluster `json:"cluster_list"`
	RequestID string      `json:"request_id"`
}

type ListCluster struct {
	Total              int           `json:"total"`
	Page               int           `json:"page"`
	PerPage            int           `json:"per_page"`
	IsApproximateTotal bool          `json:"is_approximate_total"`
	Items              []ItemCluster `json:"items"`
	HasMore            bool          `json:"has_more"`
}

// ItemCluster represents the details of a specific cluster.
type ItemCluster struct {
	FenixClusterStatus     string      `json:"fenix_cluster_status"`
	ClusterID              int         `json:"cluster_id"`
	MemoryOvercommit       float64     `json:"memory_overcommit"`
	CPUOvercommit          float64     `json:"cpu_overcommit"`
	Created                time.Time   `json:"created"`
	StorageName            string      `json:"storage_name"`
	StorageType            string      `json:"storage_type"`
	FenixBroadcastIP       string      `json:"fenix_broadcast_ip"`
	Modified               time.Time   `json:"modified"`
	FenixPingIP            string      `json:"fenix_ping_ip"`
	Deleted                time.Time   `json:"deleted"`
	DrsMode                string      `json:"drs_mode"`
	Name                   string      `json:"name"`
	FenixClusterID         int         `json:"fenix_cluster_id"`
	VstorageClusterID      int         `json:"vstorage_cluster_id"`
	FenixBalancingStrategy string      `json:"fenix_balancing_strategy"`
	FenixEnabled           bool        `json:"fenix_enabled"`
	NodeCount              int         `json:"node_count"`
	VMTotalRAM             int         `json:"vm_total_ram"`
	VMCount                int         `json:"vm_count"`
	ResourceMetrics        interface{} `json:"resource_metrics"`
}

type ResourceMetrics struct {
	CPU                  int     `json:"cpu"`
	MemoryAvailable      float64 `json:"memory_available"`
	AvgUtilization       float64 `json:"avg_utilization"`
	MaxMemoryAvailable   float64 `json:"max_memory_available"`
	MaxCPUAvailable      float64 `json:"max_cpu_available"`
	MigrationsCount      int     `json:"migrations_count"`
	CPUAvailable         float64 `json:"cpu_available"`
	Memory               int     `json:"memory"`
	StandardDeviation    float64 `json:"standard_deviation"`
	MaxStandardDeviation float64 `json:"max_standard_deviation"`
}

func (ic *ItemCluster) UnmarshalJSON(data []byte) error {
	type Alias ItemCluster
	temp := &struct {
		ResourceMetrics json.RawMessage `json:"resource_metrics,omitempty"`
		*Alias
	}{
		Alias: (*Alias)(ic),
	}

	if err := json.Unmarshal(data, &temp); err != nil {
		return err
	}

	if len(temp.ResourceMetrics) > 0 {
		var metrics ResourceMetrics
		if err := json.Unmarshal(temp.ResourceMetrics, &metrics); err != nil {
			return err
		}
		ic.ResourceMetrics = metrics
	} else {
		ic.ResourceMetrics = nil
	}

	return nil
}