package req

import (
	"time"

	"github.com/google/uuid"
)

// Cable Connection Search DTO
type CableConnectionSearchDTO struct {
	// Pagination
	Page    int `json:"page" validate:"min=1"`
	PerPage int `json:"per_page" validate:"min=1,max=100"`

	// Filtering
	CableType            *string    `json:"cable_type,omitempty"`
	Status               *string    `json:"status,omitempty"`
	DeviceID             *uuid.UUID `json:"device_id,omitempty"`
	FromDeviceID         *uuid.UUID `json:"from_device_id,omitempty"`
	ToDeviceID           *uuid.UUID `json:"to_device_id,omitempty"`
	MinLength            *float64   `json:"min_length,omitempty" validate:"omitempty,min=0"`
	MaxLength            *float64   `json:"max_length,omitempty" validate:"omitempty,min=0"`
	BranchingType        *string    `json:"branching_type,omitempty"`
	InstallationDateFrom *time.Time `json:"installation_date_from,omitempty"`
	InstallationDateTo   *time.Time `json:"installation_date_to,omitempty"`

	// Sorting
	SortBy        *string `json:"sort_by,omitempty" validate:"omitempty,oneof=cable_length installation_date created_at"`
	SortDirection *string `json:"sort_direction,omitempty" validate:"omitempty,oneof=asc desc"`

	// Geographic filtering
	Region   *string `json:"region,omitempty"`
	Province *string `json:"province,omitempty"`
	City     *string `json:"city,omitempty"`
}

// Create Cable Connection DTO
type CreateCableConnectionDTO struct {
	FromDeviceID     uuid.UUID  `json:"from_device_id" validate:"required"`
	ToDeviceID       uuid.UUID  `json:"to_device_id" validate:"required"`
	CableLength      float64    `json:"cable_length" validate:"required,min=0.1"`
	CableType        string     `json:"cable_type" validate:"required,oneof=PTP_SFP_BLD PTP_SFP_DUPLEX BB_MONEV fiber_optic drop_cable"`
	BranchingType    *string    `json:"branching_type,omitempty"`
	InstallationDate *time.Time `json:"installation_date,omitempty"`
	Status           string     `json:"status" validate:"required,oneof=active inactive maintenance planned"`
	Notes            *string    `json:"notes,omitempty"`
}

// Update Cable Connection DTO
type UpdateCableConnectionDTO struct {
	FromDeviceID     *uuid.UUID `json:"from_device_id,omitempty"`
	ToDeviceID       *uuid.UUID `json:"to_device_id,omitempty"`
	CableLength      *float64   `json:"cable_length,omitempty" validate:"omitempty,min=0.1"`
	CableType        *string    `json:"cable_type,omitempty" validate:"omitempty,oneof=PTP_SFP_BLD PTP_SFP_DUPLEX BB_MONEV fiber_optic drop_cable"`
	BranchingType    *string    `json:"branching_type,omitempty"`
	InstallationDate *time.Time `json:"installation_date,omitempty"`
	Status           *string    `json:"status,omitempty" validate:"omitempty,oneof=active inactive maintenance planned"`
	Notes            *string    `json:"notes,omitempty"`
}

// Optimal Route Request DTO
type OptimalRouteRequestDTO struct {
	FromDeviceID uuid.UUID            `json:"from_device_id" validate:"required"`
	ToDeviceID   uuid.UUID            `json:"to_device_id" validate:"required"`
	CableType    *string              `json:"cable_type,omitempty"`
	MaxHops      *int                 `json:"max_hops,omitempty" validate:"omitempty,min=1,max=10"`
	Constraints  *RouteConstraintsDTO `json:"constraints,omitempty"`
}

type RouteConstraintsDTO struct {
	MaxLength         *float64    `json:"max_length,omitempty" validate:"omitempty,min=0"`
	PreferredTypes    []string    `json:"preferred_types,omitempty"`
	AvoidDevices      []uuid.UUID `json:"avoid_devices,omitempty"`
	RequireActiveOnly bool        `json:"require_active_only"`
}

// Update Cable Status DTO
type UpdateCableStatusDTO struct {
	Status string  `json:"status" validate:"required,oneof=active inactive maintenance planned"`
	Notes  *string `json:"notes,omitempty"`
	Reason *string `json:"reason,omitempty"`
}

// Trace Cable Path DTO
type TraceCablePathDTO struct {
	FromDeviceID uuid.UUID `json:"from_device_id" validate:"required"`
	ToDeviceID   uuid.UUID `json:"to_device_id" validate:"required"`
	MaxHops      int       `json:"max_hops" validate:"min=1,max=15"`
	PathType     *string   `json:"path_type,omitempty" validate:"omitempty,oneof=shortest fastest most_reliable"`
}

// Cable Analysis DTO
type CableAnalysisRequestDTO struct {
	ConnectionID        *uuid.UUID `json:"connection_id,omitempty"`
	FromDeviceID        uuid.UUID  `json:"from_device_id" validate:"required"`
	ToDeviceID          uuid.UUID  `json:"to_device_id" validate:"required"`
	AnalysisType        string     `json:"analysis_type" validate:"required,oneof=signal_quality route_optimization cost_analysis"`
	IncludeAlternatives bool       `json:"include_alternatives"`
}

// Bulk Operations DTO
type BulkCreateCableConnectionDTO struct {
	Connections []CreateCableConnectionDTO `json:"connections" validate:"required,min=1,max=100"`
}

type BulkUpdateCableConnectionDTO struct {
	ConnectionIDs []uuid.UUID              `json:"connection_ids" validate:"required,min=1"`
	Updates       UpdateCableConnectionDTO `json:"updates" validate:"required"`
}

type BulkDeleteCableConnectionDTO struct {
	ConnectionIDs []uuid.UUID `json:"connection_ids" validate:"required,min=1,max=100"`
}

// Cable Maintenance DTO
type ScheduleMaintenanceDTO struct {
	ConnectionID      uuid.UUID  `json:"connection_id" validate:"required"`
	MaintenanceType   string     `json:"maintenance_type" validate:"required,oneof=inspection repair replacement upgrade"`
	ScheduledDate     time.Time  `json:"scheduled_date" validate:"required"`
	TechnicianID      *uuid.UUID `json:"technician_id,omitempty"`
	Priority          string     `json:"priority" validate:"required,oneof=low medium high critical"`
	Description       *string    `json:"description,omitempty"`
	EstimatedDuration *int       `json:"estimated_duration,omitempty" validate:"omitempty,min=1"` // in hours
}

// Network Analysis DTO
type NetworkAnalysisRequestDTO struct {
	DeviceType         *string `json:"device_type,omitempty"`
	CableType          *string `json:"cable_type,omitempty"`
	Region             *string `json:"region,omitempty"`
	AnalysisDepth      int     `json:"analysis_depth" validate:"min=1,max=5"`
	IncludeMetrics     bool    `json:"include_metrics"`
	IncludeBottlenecks bool    `json:"include_bottlenecks"`
}

// Cable Import DTO
type ImportCableConnectionDTO struct {
	FromDeviceCode   string     `json:"from_device_code" validate:"required"`
	ToDeviceCode     string     `json:"to_device_code" validate:"required"`
	CableLength      float64    `json:"cable_length" validate:"required,min=0.1"`
	CableType        string     `json:"cable_type" validate:"required"`
	BranchingType    *string    `json:"branching_type,omitempty"`
	InstallationDate *time.Time `json:"installation_date,omitempty"`
	Status           string     `json:"status" validate:"required"`
	Notes            *string    `json:"notes,omitempty"`
}

type BulkImportCableConnectionDTO struct {
	Connections []ImportCableConnectionDTO `json:"connections" validate:"required,min=1,max=1000"`
	SkipErrors  bool                       `json:"skip_errors"`
	DryRun      bool                       `json:"dry_run"`
}

// Validation and Quality Check DTO
type ValidateCableConnectionDTO struct {
	ConnectionID       *uuid.UUID `json:"connection_id,omitempty"`
	FromDeviceID       uuid.UUID  `json:"from_device_id" validate:"required"`
	ToDeviceID         uuid.UUID  `json:"to_device_id" validate:"required"`
	CableLength        float64    `json:"cable_length" validate:"required,min=0.1"`
	CheckDistance      bool       `json:"check_distance"`
	CheckCompatibility bool       `json:"check_compatibility"`
	CheckCapacity      bool       `json:"check_capacity"`
}