package main

import (
	"sync"

	apipkg "crypto-miner-server/internal/api"
	dbpkg "crypto-miner-server/internal/db"
)

// configSpreadCredAdapter exposes Calibrate deployment credentials to spread-cred APIs.
type configSpreadCredAdapter struct {
	mu   sync.RWMutex
	cfg  *Config
}

func newConfigSpreadCredAdapter(cfg *Config) *configSpreadCredAdapter {
	return &configSpreadCredAdapter{cfg: cfg}
}

func (a *configSpreadCredAdapter) setConfig(cfg *Config) {
	a.mu.Lock()
	a.cfg = cfg
	a.mu.Unlock()
}

func (a *configSpreadCredAdapter) snapshot() *Config {
	a.mu.RLock()
	defer a.mu.RUnlock()
	return a.cfg
}

func (a *configSpreadCredAdapter) DeploymentProfiles() []apipkg.DeploymentCredProfile {
	cfg := a.snapshot()
	if cfg == nil {
		return nil
	}
	out := make([]apipkg.DeploymentCredProfile, 0, len(cfg.DeploymentCredentials))
	for _, p := range cfg.DeploymentCredentials {
		EnsureCredProfileID(&p)
		out = append(out, apipkg.DeploymentCredProfile{
			ID:       p.ID,
			Label:    p.Label,
			Username: p.Username,
			VaultRef: p.VaultRef,
		})
	}
	return out
}

func (a *configSpreadCredAdapter) OrderProfilesForSubnet(subnet string, affinity []dbpkg.CredProfileAffinity) []apipkg.DeploymentCredProfile {
	cfg := a.snapshot()
	if cfg == nil {
		return nil
	}
	ordered := cfg.OrderDeploymentCredProfiles(affinity)
	out := make([]apipkg.DeploymentCredProfile, 0, len(ordered))
	for _, p := range ordered {
		out = append(out, apipkg.DeploymentCredProfile{
			ID:       p.ID,
			Label:    p.Label,
			Username: p.Username,
			VaultRef: p.VaultRef,
		})
	}
	return out
}

func (a *configSpreadCredAdapter) LoadProfileSecret(profileID string) (string, string, error) {
	cfg := a.snapshot()
	if cfg == nil {
		return "", "", nil
	}
	return cfg.LoadDeploymentCredPassword(profileID)
}