package aicontracts

import (
	"context"
	"time"
)

// ---------------------------------------------------------------------------
// Fix execution contract types
// ---------------------------------------------------------------------------
// These types cross the OSS↔enterprise boundary for investigation fix
// approval, execution, and patrol autonomy management.

// ApprovalInfo is the contract type for approval requests crossing the
// OSS/enterprise boundary. It mirrors the core approval.ApprovalRequest
// fields needed by enterprise handlers and the frontend UI.
type ApprovalInfo struct {
	ID                string                 `json:"id"`
	OrgID             string                 `json:"orgId,omitempty"`
	ExecutionID       string                 `json:"executionId"`
	ToolID            string                 `json:"toolId"`
	Command           string                 `json:"command"`
	TargetType        string                 `json:"targetType"`
	TargetID          string                 `json:"targetId"`
	TargetName        string                 `json:"targetName"`
	Context           string                 `json:"context"`
	RequestedBy       string                 `json:"requestedBy,omitempty"`
	RiskLevel         string                 `json:"riskLevel"`
	Status            string                 `json:"status"`
	RequestedAt       time.Time              `json:"requestedAt"`
	ExpiresAt         time.Time              `json:"expiresAt"`
	DecidedAt         *time.Time             `json:"decidedAt,omitempty"`
	DecidedBy         string                 `json:"decidedBy,omitempty"`
	DenyReason        string                 `json:"denyReason,omitempty"`
	CommandHash       string                 `json:"commandHash,omitempty"`
	Consumed          bool                   `json:"consumed,omitempty"`
	Plan              *ActionPlanInfo        `json:"plan,omitempty"`
	ContextConfidence *ContextConfidenceInfo `json:"contextConfidence,omitempty"`
	Preflight         *ActionPreflightInfo   `json:"preflight,omitempty"`
}

type ActionPlanInfo struct {
	ActionID             string    `json:"actionId,omitempty"`
	RequestID            string    `json:"requestId,omitempty"`
	Allowed              bool      `json:"allowed"`
	RequiresApproval     bool      `json:"requiresApproval"`
	ApprovalPolicy       string    `json:"approvalPolicy,omitempty"`
	PredictedBlastRadius []string  `json:"predictedBlastRadius,omitempty"`
	RollbackAvailable    bool      `json:"rollbackAvailable"`
	Message              string    `json:"message,omitempty"`
	PlannedAt            time.Time `json:"plannedAt,omitempty"`
	ExpiresAt            time.Time `json:"expiresAt,omitempty"`
	ResourceVersion      string    `json:"resourceVersion,omitempty"`
	PolicyVersion        string    `json:"policyVersion,omitempty"`
	PlanHash             string    `json:"planHash,omitempty"`
}

type ContextConfidenceInfo struct {
	Level    string   `json:"level,omitempty"`
	Summary  string   `json:"summary,omitempty"`
	Evidence []string `json:"evidence,omitempty"`
}

type ActionPreflightInfo struct {
	Target            string    `json:"target,omitempty"`
	CurrentState      string    `json:"currentState,omitempty"`
	IntendedChange    string    `json:"intendedChange,omitempty"`
	DryRunAvailable   bool      `json:"dryRunAvailable"`
	DryRunSummary     string    `json:"dryRunSummary,omitempty"`
	SafetyChecks      []string  `json:"safetyChecks,omitempty"`
	VerificationSteps []string  `json:"verificationSteps,omitempty"`
	GeneratedAt       time.Time `json:"generatedAt,omitempty"`
}

// ApprovalStoreAccessor provides approval operations for enterprise handlers.
type ApprovalStoreAccessor interface {
	// GetApproval returns an approval request by ID.
	GetApproval(id string) (*ApprovalInfo, bool)
	// Approve marks an approval request as approved.
	Approve(id, username string) (*ApprovalInfo, error)
	// CreateApproval creates a new approval request.
	CreateApproval(req *ApprovalInfo) error
	// GetPendingForOrg returns pending approvals for an org and per-org stats.
	GetPendingForOrg(orgID string) ([]*ApprovalInfo, map[string]int)
	// BelongsToOrg checks whether an approval belongs to the given org.
	BelongsToOrg(info *ApprovalInfo, orgID string) bool
	// AssessRiskLevel determines the risk level of a command.
	AssessRiskLevel(command, targetType string) string
}

// MCPToolExecutor executes MCP tool calls via the chat service.
type MCPToolExecutor interface {
	ExecuteMCPTool(ctx context.Context, command, approvalID string) (output string, exitCode int, err error)
}

// AgentCommandExecutor executes shell commands via connected agents.
type AgentCommandExecutor interface {
	ExecuteCommand(ctx context.Context, agentID, command string) (stdout, stderr string, exitCode int, err error)
	FindAgentForTarget(targetHost string) string
}

// FindingOutcomeUpdater updates investigation outcomes on findings.
type FindingOutcomeUpdater interface {
	UpdateFindingOutcome(ctx context.Context, orgID, findingID, outcome string)
}

// FixVerificationLauncher launches background fix verification after a fix
// has been executed. It sleeps briefly and then re-checks whether the issue
// persists.
type FixVerificationLauncher interface {
	LaunchVerification(ctx context.Context, orgID, findingID, sessionID string, proposedFix *Fix, store InvestigationStore)
}

// PatrolConfigAccessor provides read access to patrol configuration for
// enterprise handlers.
type PatrolConfigAccessor interface {
	GetEffectiveAutonomyLevel() string
	HasLicenseFeature(feature string) bool
	GetPatrolInvestigationBudget() int
	GetPatrolInvestigationTimeout() time.Duration
	GetPatrolFullModeUnlocked() bool
	GetPatrolAutonomyLevel() string
	IsValidPatrolAutonomyLevel(level string) bool
}

// PatrolConfigUpdater provides config mutation for autonomy settings updates.
type PatrolConfigUpdater interface {
	SaveAutonomySettings(ctx context.Context, level string, unlocked bool, budget, timeoutSec int) error
	ReloadConfig(ctx context.Context) error
}