// Package config defines the deployment configuration for OpenBoatmobile.
package config

import (
	"strings"
)

// DeploymentConfig holds all configuration gathered during the walkthrough.
type DeploymentConfig struct {
	// Framework selection
	Framework string // "hermes" or "openclaw"

	// Cloud provider
	CloudProvider string // "hetzner" or "digitalocean"

	// Provider tokens (sensitive)
	HetznerToken string
	DOToken      string

	// SSH configuration
	SSHKeyNames        []string
	SSHKeyFingerprints []string

	// Server configuration
	ServerName    string
	Location      string // hetzner: ash, fsn1, nbg1, hel1
	Region        string // DO: nyc3, sfo2, ams3, etc.
	ServerType    string // hetzner: cpx21, cx23, etc.
	DropletSize   string // DO: s-2vcpu-4gb, etc.
	AgentName     string
	AgentTimezone string

	// Inference
	InferenceProvider string // "venice", "openrouter", "openai", "anthropic", "custom"
	InferenceAPIKey  string
	InferenceBaseURL  string

	// Fallback inference
	FallbackProviders []InferenceProviderConfig

	// Model
	PrimaryModel      string
	PrimaryModelName  string
	FallbackModels    []string
	VeniceBaseURL     string

	// Docker (Hermes only)
	DockerEnabled bool

	// OpenClaw-specific
	OpenClawVersion string
	NodeVersion     string
	EnableSwap      bool
	SwapSizeGB      int
	EnableFail2ban  bool
	EnableUnattendedUpgrades bool

	// Tailscale
	EnableTailscale  bool
	TailscaleAuthKey string
	TailnetDomain    string

	// Discord
	EnableDiscord    bool
	DiscordBotToken  string
	DiscordServerID  string
	DiscordUserIDs   []string
	// Hermes-specific Discord
	DiscordHomeChannel   string
	DiscordAllowedUsers  string
	DiscordAutoThread    bool

	// Gateway (Hermes)
	GatewayToken         string
	GatewayAllowedUsers  string
	GatewayAllowAllUsers bool

	// Optional integrations
	BraveSearchAPIKey string
}

// InferenceProviderConfig holds a single inference provider's config.
type InferenceProviderConfig struct {
	Provider string
	APIKey   string
	BaseURL  string
}

// AdminUser returns the admin username based on framework selection.
func (c *DeploymentConfig) AdminUser() string {
	return c.Framework // "hermes" or "openclaw"
}

// MonthlyCostEstimate returns an estimated monthly cost string.
func (c *DeploymentConfig) MonthlyCostEstimate() string {
	switch c.CloudProvider {
	case "hetzner":
		return hetznerPrice(c.ServerType)
	case "digitalocean":
		return doPrice(c.DropletSize)
	default:
		return "unknown"
	}
}

func hetznerPrice(serverType string) string {
	prices := map[string]string{
		"cx22":  "€3.79/mo",
		"cx23":  "€5.83/mo",
		"cpx21": "€4.49/mo",
		"cpx31": "€8.98/mo",
		"cpx41": "€17.96/mo",
	}
	if p, ok := prices[serverType]; ok {
		return p
	}
	return "see Hetzner pricing"
}

func doPrice(size string) string {
	prices := map[string]string{
		"s-1vcpu-1gb":    "$6/mo",
		"s-1vcpu-2gb":    "$12/mo",
		"s-2vcpu-4gb":    "$24/mo",
		"s-4vcpu-8gb":    "$48/mo",
		"g-2vcpu-8gb":    "$63/mo",
	}
	if p, ok := prices[size]; ok {
		return p
	}
	return "see DO pricing"
}

// LocationOrRegion returns the location (Hetzner) or region (DO) string.
func LocationOrRegion(c *DeploymentConfig) string {
	if c.CloudProvider == "hetzner" {
		return c.Location
	}
	return c.Region
}

// ServerTypeOrDroplet returns the server type or droplet size string.
func ServerTypeOrDroplet(c *DeploymentConfig) string {
	if c.CloudProvider == "hetzner" {
		return c.ServerType
	}
	return c.DropletSize
}

// SSHKeySummary returns a human-readable summary of the SSH key config.
func SSHKeySummary(c *DeploymentConfig) string {
	if len(c.SSHKeyNames) > 0 {
		return strings.Join(c.SSHKeyNames, ", ")
	}
	if len(c.SSHKeyFingerprints) > 0 {
		return "****" + c.SSHKeyFingerprints[0][max(0, len(c.SSHKeyFingerprints[0])-4):]
	}
	return "(none)"
}

func max(a, b int) int {
	if a > b {
		return a
	}
	return b
}