package api

import (
	"github.com/google/uuid"

	"github.com/vasyakrg/dns-autoresolver/internal/store"
	"github.com/vasyakrg/dns-autoresolver/internal/store/dto"
)

type accountRequest struct {
	Provider string `json:"provider"`
	Secret   string `json:"secret"`
	Comment  string `json:"comment"`
}

// accountResponse deliberately excludes the secret (plaintext or encrypted).
type accountResponse struct {
	ID       string `json:"id"`
	Provider string `json:"provider"`
	Comment  string `json:"comment"`
}

func toAccountResponse(a store.Account) accountResponse {
	return accountResponse{ID: a.ID.String(), Provider: a.Provider, Comment: a.Comment}
}

type templateRequest struct {
	Name    string          `json:"name"`
	Records []dto.RecordDTO `json:"records"`
}

type templateResponse struct {
	ID      string          `json:"id"`
	Name    string          `json:"name"`
	Records []dto.RecordDTO `json:"records"`
	Version int32           `json:"version"`
}

func toTemplateResponse(t store.Template) templateResponse {
	return templateResponse{ID: t.ID.String(), Name: t.Name, Records: t.Doc.Records, Version: t.Version}
}

type domainRequest struct {
	ProviderAccountID string  `json:"providerAccountId"`
	ZoneName          string  `json:"zoneName"`
	ZoneID            string  `json:"zoneId"`
	TemplateID        *string `json:"templateId,omitempty"`
}

// updateDomainTemplateRequest is the PATCH .../domains/{did} body used to
// bind (or clear, when templateId is null/omitted) a domain's DNS template.
type updateDomainTemplateRequest struct {
	TemplateID *string `json:"templateId"`
}

type domainResponse struct {
	ID                string  `json:"id"`
	ProviderAccountID string  `json:"providerAccountId"`
	ZoneName          string  `json:"zoneName"`
	ZoneID            string  `json:"zoneId"`
	TemplateID        *string `json:"templateId,omitempty"`
	LastCheckStatus   string  `json:"lastCheckStatus"`
}

func toDomainResponse(d store.Domain) domainResponse {
	resp := domainResponse{
		ID: d.ID.String(), ProviderAccountID: d.ProviderAccountID.String(),
		ZoneName: d.ZoneName, ZoneID: d.ZoneID, LastCheckStatus: d.LastCheckStatus,
	}
	if d.TemplateID != nil {
		s := d.TemplateID.String()
		resp.TemplateID = &s
	}
	return resp
}

// parseOptionalUUID parses s (may be nil/empty) into *uuid.UUID; returns ok=false on invalid input.
func parseOptionalUUID(s *string) (*uuid.UUID, bool) {
	if s == nil || *s == "" {
		return nil, true
	}
	id, err := uuid.Parse(*s)
	if err != nil {
		return nil, false
	}
	return &id, true
}