package pluginhost

import (
	"bytes"
	"context"
	"encoding/json"
	"fmt"
	"os"
	"path/filepath"
	"runtime"
	"sort"
	"strconv"
	"strings"
	"time"

	"github.com/router-for-me/CLIProxyAPI/v8/internal/registry"
	coreauth "github.com/router-for-me/CLIProxyAPI/v8/sdk/cliproxy/auth"
	"github.com/router-for-me/CLIProxyAPI/v8/sdk/pluginapi"
)

type rpcHostAuthGetRequest struct {
	AuthIndex string `json:"auth_index"`
}

type rpcHostAuthListResponse struct {
	Files []pluginapi.HostAuthFileEntry `json:"files"`
}

type rpcHostAuthGetResponse struct {
	AuthIndex string          `json:"auth_index"`
	Name      string          `json:"name,omitempty"`
	Path      string          `json:"path,omitempty"`
	JSON      json.RawMessage `json:"json"`
}

func (h *Host) SetAuthManager(manager *coreauth.Manager) {
	if h == nil {
		return
	}
	h.mu.Lock()
	h.authManager = manager
	h.mu.Unlock()
}

func (h *Host) currentAuthManager() *coreauth.Manager {
	if h == nil {
		return nil
	}
	h.mu.Lock()
	manager := h.authManager
	h.mu.Unlock()
	return manager
}

func (h *Host) callHostAuthList(ctx context.Context, request []byte) ([]byte, error) {
	_ = ctx
	if len(bytesTrimSpace(request)) > 0 {
		var req map[string]any
		if errUnmarshal := json.Unmarshal(request, &req); errUnmarshal != nil {
			return nil, fmt.Errorf("decode host auth list request: %w", errUnmarshal)
		}
	}
	entries, errList := h.listAuthFiles()
	if errList != nil {
		return nil, errList
	}
	return marshalRPCResult(rpcHostAuthListResponse{Files: entries})
}

func (h *Host) callHostAuthGet(ctx context.Context, request []byte) ([]byte, error) {
	_ = ctx
	var req rpcHostAuthGetRequest
	if errUnmarshal := json.Unmarshal(request, &req); errUnmarshal != nil {
		return nil, fmt.Errorf("decode host auth get request: %w", errUnmarshal)
	}
	authIndex := strings.TrimSpace(req.AuthIndex)
	if authIndex == "" {
		return nil, fmt.Errorf("auth_index is required")
	}
	auth, rawJSON, errGet := h.authPhysicalJSONByIndex(authIndex)
	if errGet != nil {
		return nil, errGet
	}
	name := strings.TrimSpace(auth.FileName)
	if name == "" {
		name = strings.TrimSpace(auth.ID)
	}
	path := strings.TrimSpace(authAttribute(auth, "path"))
	return marshalRPCResult(rpcHostAuthGetResponse{
		AuthIndex: authIndex,
		Name:      name,
		Path:      path,
		JSON:      json.RawMessage(rawJSON),
	})
}

func (h *Host) callHostAuthGetRuntime(ctx context.Context, request []byte) ([]byte, error) {
	_ = ctx
	var req rpcHostAuthGetRequest
	if errUnmarshal := json.Unmarshal(request, &req); errUnmarshal != nil {
		return nil, fmt.Errorf("decode host auth get runtime request: %w", errUnmarshal)
	}
	authIndex := strings.TrimSpace(req.AuthIndex)
	if authIndex == "" {
		return nil, fmt.Errorf("auth_index is required")
	}
	auth, errGet := h.authByIndex(authIndex)
	if errGet != nil {
		return nil, errGet
	}
	entry := h.buildHostAuthFileEntry(auth)
	if entry == nil {
		return nil, fmt.Errorf("auth runtime info not found for auth_index %s", authIndex)
	}
	return marshalRPCResult(pluginapi.HostAuthGetRuntimeResponse{Auth: *entry})
}

func (h *Host) callHostAuthSave(ctx context.Context, request []byte) ([]byte, error) {
	var req pluginapi.HostAuthSaveRequest
	if errUnmarshal := json.Unmarshal(request, &req); errUnmarshal != nil {
		return nil, fmt.Errorf("decode host auth save request: %w", errUnmarshal)
	}
	name, rawJSON, errValidate := validateHostAuthSaveRequest(req)
	if errValidate != nil {
		return nil, errValidate
	}
	path, errSave := h.saveAuthFile(ctx, name, rawJSON)
	if errSave != nil {
		return nil, errSave
	}
	return marshalRPCResult(pluginapi.HostAuthSaveResponse{
		Name: name,
		Path: path,
	})
}

func (h *Host) callHostAuthModels(ctx context.Context, request []byte) ([]byte, error) {
	_ = ctx
	var req pluginapi.HostAuthModelsRequest
	if len(bytesTrimSpace(request)) > 0 {
		if errUnmarshal := json.Unmarshal(request, &req); errUnmarshal != nil {
			return nil, fmt.Errorf("decode host auth models request: %w", errUnmarshal)
		}
	}
	reg := registry.GetGlobalRegistry()
	authIndex := strings.TrimSpace(req.AuthIndex)
	if authIndex != "" {
		auth, errGet := h.authByIndex(authIndex)
		if errGet != nil {
			return nil, errGet
		}
		return marshalRPCResult(pluginapi.HostAuthModelsResponse{
			Credentials: []pluginapi.HostAuthModels{buildHostAuthModels(auth, reg)},
		})
	}
	manager := h.currentAuthManager()
	if manager == nil {
		return marshalRPCResult(pluginapi.HostAuthModelsResponse{
			Credentials: []pluginapi.HostAuthModels{},
		})
	}
	auths := manager.List()
	credentials := make([]pluginapi.HostAuthModels, 0, len(auths))
	for _, auth := range auths {
		if auth == nil {
			continue
		}
		credentials = append(credentials, buildHostAuthModels(auth, reg))
	}
	sort.Slice(credentials, func(i, j int) bool {
		leftID := strings.ToLower(credentials[i].ID)
		rightID := strings.ToLower(credentials[j].ID)
		if leftID != rightID {
			return leftID < rightID
		}
		if credentials[i].ID != credentials[j].ID {
			return credentials[i].ID < credentials[j].ID
		}
		return credentials[i].AuthIndex < credentials[j].AuthIndex
	})
	return marshalRPCResult(pluginapi.HostAuthModelsResponse{
		Credentials: credentials,
	})
}

func buildHostAuthModels(auth *coreauth.Auth, reg *registry.ModelRegistry) pluginapi.HostAuthModels {
	auth.EnsureIndex()
	var regModels []*registry.ModelInfo
	if reg != nil && strings.TrimSpace(auth.ID) != "" {
		regModels = reg.GetModelsForClient(auth.ID)
	}
	models := make([]string, 0, len(regModels))
	for _, m := range regModels {
		if m == nil {
			continue
		}
		if id := strings.TrimSpace(m.ID); id != "" {
			models = append(models, id)
		}
	}
	return pluginapi.HostAuthModels{
		ID:        auth.ID,
		AuthIndex: auth.Index,
		Provider:  strings.TrimSpace(auth.Provider),
		Models:    models,
	}
}

func (h *Host) listAuthFiles() ([]pluginapi.HostAuthFileEntry, error) {
	manager := h.currentAuthManager()
	if manager != nil {
		auths := manager.List()
		entries := make([]pluginapi.HostAuthFileEntry, 0, len(auths))
		for _, auth := range auths {
			if entry := h.buildHostAuthFileEntry(auth); entry != nil {
				entries = append(entries, *entry)
			}
		}
		sort.Slice(entries, func(i, j int) bool {
			return strings.ToLower(entries[i].Name) < strings.ToLower(entries[j].Name)
		})
		return entries, nil
	}
	return h.listAuthFilesFromDisk()
}

func (h *Host) listAuthFilesFromDisk() ([]pluginapi.HostAuthFileEntry, error) {
	authDir := h.resolvedAuthDir()
	if authDir == "" {
		return nil, fmt.Errorf("auth directory is unavailable")
	}
	entries, errReadDir := os.ReadDir(authDir)
	if errReadDir != nil {
		return nil, fmt.Errorf("failed to read auth dir: %w", errReadDir)
	}
	files := make([]pluginapi.HostAuthFileEntry, 0)
	for _, entry := range entries {
		if entry.IsDir() {
			continue
		}
		name := entry.Name()
		if !strings.HasSuffix(strings.ToLower(name), ".json") {
			continue
		}
		full := filepath.Join(authDir, name)
		fileEntry := pluginapi.HostAuthFileEntry{
			Name:   name,
			Source: "file",
			Path:   full,
		}
		if info, errInfo := entry.Info(); errInfo == nil {
			fileEntry.Size = info.Size()
			fileEntry.ModTime = info.ModTime()
		}
		if data, errRead := os.ReadFile(full); errRead == nil {
			var metadata map[string]any
			if errUnmarshal := json.Unmarshal(data, &metadata); errUnmarshal == nil {
				if provider, ok := metadata["type"].(string); ok {
					fileEntry.Type = strings.TrimSpace(provider)
					fileEntry.Provider = fileEntry.Type
				}
				if email, ok := metadata["email"].(string); ok {
					fileEntry.Email = strings.TrimSpace(email)
				}
				if projectID, ok := metadata["project_id"].(string); ok {
					fileEntry.ProjectID = strings.TrimSpace(projectID)
				}
				if rawPriority, ok := metadata["priority"]; ok {
					if priority, okPriority := parsePriorityValue(rawPriority); okPriority {
						fileEntry.Priority = priority
					}
				}
				if note, ok := metadata["note"].(string); ok {
					fileEntry.Note = strings.TrimSpace(note)
				}
				if baseURL, ok := metadata["base_url"].(string); ok {
					fileEntry.BaseURL = strings.TrimSpace(baseURL)
				}
				if websockets, okWebsockets := parseWebsocketsValue(metadata["websockets"]); okWebsockets {
					fileEntry.Websockets = websockets
				}
				if disabled, okDisabled := parseBoolValue(metadata["disabled"]); okDisabled && disabled {
					fileEntry.Disabled = true
					fileEntry.Status = string(coreauth.StatusDisabled)
				} else {
					fileEntry.Status = string(coreauth.StatusActive)
				}
			}
		}
		files = append(files, fileEntry)
	}
	sort.Slice(files, func(i, j int) bool {
		return strings.ToLower(files[i].Name) < strings.ToLower(files[j].Name)
	})
	return files, nil
}

func (h *Host) authByIndex(authIndex string) (*coreauth.Auth, error) {
	authIndex = strings.TrimSpace(authIndex)
	if authIndex == "" {
		return nil, fmt.Errorf("auth_index is required")
	}
	manager := h.currentAuthManager()
	if manager == nil {
		return nil, fmt.Errorf("core auth manager unavailable")
	}
	for _, auth := range manager.List() {
		if auth == nil {
			continue
		}
		auth.EnsureIndex()
		if auth.Index == authIndex {
			return auth, nil
		}
	}
	return nil, fmt.Errorf("auth not found for auth_index %s", authIndex)
}

func (h *Host) authPhysicalJSONByIndex(authIndex string) (*coreauth.Auth, []byte, error) {
	auth, errGet := h.authByIndex(authIndex)
	if errGet != nil {
		return nil, nil, errGet
	}
	path := strings.TrimSpace(authAttribute(auth, "path"))
	if path == "" {
		return nil, nil, fmt.Errorf("auth file path not found for auth_index %s", authIndex)
	}
	data, errRead := os.ReadFile(path)
	if errRead != nil {
		if os.IsNotExist(errRead) {
			return nil, nil, fmt.Errorf("auth file not found for auth_index %s", authIndex)
		}
		return nil, nil, fmt.Errorf("failed to read auth file: %w", errRead)
	}
	if len(bytesTrimSpace(data)) == 0 {
		return nil, nil, fmt.Errorf("auth file is empty for auth_index %s", authIndex)
	}
	var metadata map[string]any
	if errUnmarshal := json.Unmarshal(data, &metadata); errUnmarshal != nil {
		return nil, nil, fmt.Errorf("invalid auth file for auth_index %s: %w", authIndex, errUnmarshal)
	}
	return auth, data, nil
}

func validateHostAuthSaveRequest(req pluginapi.HostAuthSaveRequest) (string, []byte, error) {
	name := strings.TrimSpace(req.Name)
	if isUnsafeAuthFileName(name) {
		return "", nil, fmt.Errorf("invalid auth file name")
	}
	if !strings.HasSuffix(strings.ToLower(name), ".json") {
		return "", nil, fmt.Errorf("auth file name must end with .json")
	}
	rawJSON := bytesTrimSpace(req.JSON)
	if len(rawJSON) == 0 {
		return "", nil, fmt.Errorf("json is required")
	}
	var metadata map[string]any
	if errUnmarshal := json.Unmarshal(rawJSON, &metadata); errUnmarshal != nil {
		return "", nil, fmt.Errorf("invalid auth json: %w", errUnmarshal)
	}
	return filepath.Base(name), rawJSON, nil
}

func (h *Host) saveAuthFile(ctx context.Context, name string, data []byte) (string, error) {
	authDir := h.resolvedAuthDir()
	if authDir == "" {
		return "", fmt.Errorf("auth directory is unavailable")
	}
	dst := filepath.Join(authDir, filepath.Base(name))
	if !filepath.IsAbs(dst) {
		if abs, errAbs := filepath.Abs(dst); errAbs == nil {
			dst = abs
		}
	}
	auths, errBuild := h.buildAuthsFromFileData(ctx, dst, data)
	if errBuild != nil {
		return "", errBuild
	}
	if errWrite := os.WriteFile(dst, data, 0o600); errWrite != nil {
		return "", fmt.Errorf("failed to write auth file: %w", errWrite)
	}
	if errUpsert := h.upsertAuthRecordsForPath(ctx, dst, auths); errUpsert != nil {
		return "", errUpsert
	}
	return dst, nil
}

func (h *Host) buildAuthsFromFileData(ctx context.Context, path string, data []byte) ([]*coreauth.Auth, error) {
	if strings.TrimSpace(path) == "" {
		return nil, fmt.Errorf("auth path is empty")
	}
	if data == nil {
		var errRead error
		data, errRead = os.ReadFile(path)
		if errRead != nil {
			return nil, fmt.Errorf("failed to read auth file: %w", errRead)
		}
	}
	metadata := make(map[string]any)
	if errUnmarshal := json.Unmarshal(data, &metadata); errUnmarshal != nil {
		return nil, fmt.Errorf("invalid auth file: %w", errUnmarshal)
	}
	coreauth.NormalizeCredentialMetadata(metadata)
	if errWeight := coreauth.ValidateAuthWeight(&coreauth.Auth{Metadata: metadata}); errWeight != nil {
		return nil, fmt.Errorf("invalid auth weight: %w", errWeight)
	}
	provider, _ := metadata["type"].(string)
	provider = strings.TrimSpace(provider)

	fileName := filepath.Base(path)
	defaultAuthID := h.authIDForPath(path)
	if defaultAuthID == "" {
		defaultAuthID = path
	}
	disabled, okDisabled := parseBoolValue(metadata["disabled"])
	now := time.Now().UTC()

	parsedAuths, handled, errParse := h.ParseAuths(ctx, pluginapi.AuthParseRequest{
		Provider: provider,
		Path:     path,
		FileName: defaultAuthID,
		RawJSON:  data,
	})
	if errParse != nil {
		return nil, fmt.Errorf("invalid auth file: %w", errParse)
	}
	if handled {
		out := make([]*coreauth.Auth, 0, len(parsedAuths))
		for _, auth := range parsedAuths {
			if auth == nil {
				continue
			}
			if errWeight := coreauth.ValidateAuthWeight(auth); errWeight != nil {
				return nil, fmt.Errorf("invalid auth weight: %w", errWeight)
			}
			out = append(out, auth)
		}
		for index, auth := range out {
			coreauth.NormalizeCredentialMetadata(auth.Metadata)
			if len(out) == 1 {
				if auth.Metadata == nil {
					auth.Metadata = make(map[string]any, len(metadata))
				}
				for key, value := range metadata {
					if _, exists := auth.Metadata[key]; !exists {
						auth.Metadata[key] = value
					}
				}
				if pts, ok := auth.Storage.(*pluginTokenStorage); ok && pts != nil && len(bytes.TrimSpace(pts.rawJSON)) == 0 {
					pts.rawJSON = bytes.Clone(data)
				}
			}
			if len(out) > 1 {
				coreauth.MarkPluginVirtualAuth(auth, path, index)
			}
			if strings.TrimSpace(auth.FileName) == "" {
				auth.FileName = fileName
			}
			if len(out) == 1 && (strings.TrimSpace(auth.ID) == "" || auth.ID == defaultAuthID) {
				if existing := h.findExistingAuthForSave(auth.ID, path, true); existing != nil && strings.TrimSpace(existing.ID) != "" {
					auth.ID = strings.TrimSpace(existing.ID)
				}
			}
			if strings.TrimSpace(auth.ID) == "" {
				auth.ID = defaultAuthID
			}
			auth.CreatedAt = now
			auth.UpdatedAt = now
			if auth.Attributes == nil {
				auth.Attributes = make(map[string]string)
			}
			auth.Attributes[coreauth.AttributePath] = path
			auth.Attributes[coreauth.AttributeSource] = path
			auth.Attributes[coreauth.AttributeSourceBackend] = coreauth.AuthSourceFile
			if okDisabled && disabled {
				auth.Disabled = true
				auth.Status = coreauth.StatusDisabled
				if auth.Metadata == nil {
					auth.Metadata = make(map[string]any)
				}
				auth.Metadata["disabled"] = true
			}
			if p, ok := metadata["proxy_url"].(string); ok && auth.ProxyURL == "" {
				auth.ProxyURL = strings.TrimSpace(p)
			}
			if pref, ok := metadata["prefix"].(string); ok && auth.Prefix == "" {
				auth.Prefix = strings.Trim(strings.TrimSpace(pref), "/")
			}
			if errWeight := coreauth.ApplyAuthWeightMetadata(auth, metadata); errWeight != nil {
				return nil, fmt.Errorf("invalid auth weight: %w", errWeight)
			}
			coreauth.ApplyAuthPriorityMetadata(auth, metadata)
			if _, inherited := auth.Attributes[coreauth.AttributeFilePriority]; inherited {
				if setter, ok := auth.Storage.(interface{ SetMetadata(map[string]any) }); ok {
					setter.SetMetadata(auth.Metadata)
				}
			}
			coreauth.ApplyCustomHeadersFromMetadata(auth)
			if existing := h.findExistingAuthForSave(auth.ID, path, len(out) == 1); existing != nil {
				preserveExistingAuthState(auth, existing)
			}
		}
		return out, nil
	}

	if provider == "" {
		provider = "unknown"
	}
	label := provider
	if email, ok := metadata["email"].(string); ok && strings.TrimSpace(email) != "" {
		label = strings.TrimSpace(email)
	}
	authID := defaultAuthID
	existing := h.findExistingAuthForSave(authID, path, true)
	if existing != nil && strings.TrimSpace(existing.ID) != "" {
		authID = strings.TrimSpace(existing.ID)
	}
	status := coreauth.StatusActive
	if okDisabled && disabled {
		status = coreauth.StatusDisabled
	} else {
		disabled = false
	}
	auth := &coreauth.Auth{
		ID:       authID,
		Provider: provider,
		FileName: fileName,
		Label:    label,
		Status:   status,
		Disabled: disabled,
		Attributes: map[string]string{
			coreauth.AttributePath:          path,
			coreauth.AttributeSource:        path,
			coreauth.AttributeSourceBackend: coreauth.AuthSourceFile,
		},
		Metadata:  metadata,
		CreatedAt: now,
		UpdatedAt: now,
	}
	if existing != nil {
		preserveExistingAuthState(auth, existing)
	}
	if errWeight := coreauth.ApplyAuthWeightMetadata(auth, metadata); errWeight != nil {
		return nil, fmt.Errorf("invalid auth weight: %w", errWeight)
	}
	coreauth.ApplyAuthPriorityMetadata(auth, metadata)
	coreauth.ApplyCustomHeadersFromMetadata(auth)
	return []*coreauth.Auth{auth}, nil
}

func preserveExistingAuthState(dst, existing *coreauth.Auth) {
	if dst == nil || existing == nil {
		return
	}
	if !existing.CreatedAt.IsZero() {
		dst.CreatedAt = existing.CreatedAt
	}
	dst.LastRefreshedAt = existing.LastRefreshedAt
	dst.NextRetryAfter = existing.NextRetryAfter
	dst.NextRefreshAfter = existing.NextRefreshAfter
	dst.Runtime = existing.Runtime
	if !existing.Disabled && existing.Status != coreauth.StatusDisabled && !dst.Disabled && dst.Status != coreauth.StatusDisabled {
		if len(dst.ModelStates) == 0 && len(existing.ModelStates) > 0 {
			dst.ModelStates = existing.ModelStates
		}
	}
}

func (h *Host) findExistingAuthForSave(authID, path string, allowPathFallback bool) *coreauth.Auth {
	manager := h.currentAuthManager()
	if manager == nil {
		return nil
	}
	authID = strings.TrimSpace(authID)
	defaultID := h.authIDForPath(path)
	if authID != "" && (!allowPathFallback || authID != defaultID) {
		if existing, ok := manager.GetByID(authID); ok && existing != nil {
			return existing
		}
	}
	if !allowPathFallback {
		return nil
	}
	var matched *coreauth.Auth
	for _, candidate := range manager.List() {
		if candidate == nil || isRuntimeOnlyAuth(candidate) || coreauth.IsPluginVirtualAuth(candidate) {
			continue
		}
		if !authMatchesPhysicalFile(candidate, path) {
			continue
		}
		if matched == nil || (matched.ID == defaultID && candidate.ID != defaultID) {
			matched = candidate
		}
	}
	if matched != nil {
		return matched
	}
	if authID != "" {
		if existing, ok := manager.GetByID(authID); ok && existing != nil {
			return existing
		}
	}
	return nil
}

func authMatchesPhysicalFile(auth *coreauth.Auth, path string) bool {
	if auth == nil || strings.TrimSpace(path) == "" {
		return false
	}
	if sameHostAuthFilePath(authAttribute(auth, coreauth.AttributePath), path) ||
		sameHostAuthFilePath(authAttribute(auth, coreauth.AttributeSource), path) ||
		sameHostAuthFilePath(authAttribute(auth, coreauth.AttributeVirtualSource), path) {
		return true
	}
	if strings.TrimSpace(authAttribute(auth, coreauth.AttributePath)) == "" {
		return strings.EqualFold(strings.TrimSpace(auth.FileName), filepath.Base(path))
	}
	return false
}

func sameHostAuthFilePath(left, right string) bool {
	left = strings.TrimSpace(left)
	right = strings.TrimSpace(right)
	if left == "" || right == "" {
		return false
	}
	if absLeft, errLeft := filepath.Abs(left); errLeft == nil {
		left = absLeft
	}
	if absRight, errRight := filepath.Abs(right); errRight == nil {
		right = absRight
	}
	left = filepath.Clean(left)
	right = filepath.Clean(right)
	if runtime.GOOS == "windows" {
		return strings.EqualFold(left, right)
	}
	return left == right
}

func (h *Host) upsertAuthRecordsForPath(ctx context.Context, path string, auths []*coreauth.Auth) error {
	manager := h.currentAuthManager()
	if manager == nil {
		return nil
	}
	keepIDs := make(map[string]struct{}, len(auths))
	for _, auth := range auths {
		if auth == nil || strings.TrimSpace(auth.ID) == "" {
			continue
		}
		keepIDs[auth.ID] = struct{}{}
		if existing, ok := manager.GetByID(auth.ID); ok && existing != nil {
			if !existing.CreatedAt.IsZero() {
				auth.CreatedAt = existing.CreatedAt
			}
			if _, errUpdate := manager.Update(ctx, auth); errUpdate != nil {
				return errUpdate
			}
			continue
		}
		if _, errRegister := manager.Register(ctx, auth); errRegister != nil {
			return errRegister
		}
	}
	skipPersistCtx := coreauth.WithSkipPersist(ctx)
	for _, existing := range manager.List() {
		if existing == nil || isRuntimeOnlyAuth(existing) {
			continue
		}
		if _, keep := keepIDs[existing.ID]; keep {
			continue
		}
		if authMatchesPhysicalFile(existing, path) {
			manager.Remove(skipPersistCtx, existing.ID)
			registry.GetGlobalRegistry().UnregisterClient(existing.ID)
		}
	}
	return nil
}

func isUnsafeAuthFileName(name string) bool {
	if strings.TrimSpace(name) == "" {
		return true
	}
	if strings.ContainsAny(name, "/\\") {
		return true
	}
	if filepath.VolumeName(name) != "" {
		return true
	}
	return false
}

func (h *Host) buildHostAuthFileEntry(auth *coreauth.Auth) *pluginapi.HostAuthFileEntry {
	if auth == nil {
		return nil
	}
	auth.EnsureIndex()
	runtimeOnly := isRuntimeOnlyAuth(auth)
	if runtimeOnly && (auth.Disabled || auth.Status == coreauth.StatusDisabled) {
		return nil
	}
	path := strings.TrimSpace(authAttribute(auth, "path"))
	if path == "" && !runtimeOnly {
		return nil
	}
	name := strings.TrimSpace(auth.FileName)
	if name == "" {
		name = auth.ID
	}
	entry := &pluginapi.HostAuthFileEntry{
		ID:             auth.ID,
		AuthIndex:      auth.Index,
		Name:           name,
		Type:           strings.TrimSpace(auth.Provider),
		Provider:       strings.TrimSpace(auth.Provider),
		Label:          auth.Label,
		Status:         string(auth.Status),
		StatusMessage:  auth.StatusMessage,
		Disabled:       auth.Disabled,
		Unavailable:    auth.Unavailable,
		RuntimeOnly:    runtimeOnly,
		Source:         "memory",
		Success:        auth.Success,
		Failed:         auth.Failed,
		RecentRequests: hostRecentRequests(auth),
	}
	if email := authEmail(auth); email != "" {
		entry.Email = email
	}
	if projectID := authProjectID(auth); projectID != "" {
		entry.ProjectID = projectID
	}
	if accountType, account := auth.AccountInfo(); accountType != "" || account != "" {
		entry.AccountType = accountType
		entry.Account = account
	}
	if !auth.CreatedAt.IsZero() {
		entry.CreatedAt = auth.CreatedAt
	}
	if !auth.UpdatedAt.IsZero() {
		entry.ModTime = auth.UpdatedAt
		entry.UpdatedAt = auth.UpdatedAt
	}
	if !auth.LastRefreshedAt.IsZero() {
		entry.LastRefresh = auth.LastRefreshedAt
	}
	if !auth.NextRetryAfter.IsZero() {
		entry.NextRetryAfter = auth.NextRetryAfter
	}
	if path != "" {
		entry.Path = path
		entry.Source = "file"
		if info, err := os.Stat(path); err == nil {
			entry.Size = info.Size()
			entry.ModTime = info.ModTime()
		} else if os.IsNotExist(err) {
			if !runtimeOnly && (auth.Disabled || auth.Status == coreauth.StatusDisabled || strings.EqualFold(strings.TrimSpace(auth.StatusMessage), "removed via management api")) {
				return nil
			}
			entry.Source = "memory"
		}
	}
	if p := strings.TrimSpace(authAttribute(auth, "priority")); p != "" {
		if parsed, err := strconv.Atoi(p); err == nil {
			entry.Priority = parsed
		}
	} else if auth.Metadata != nil {
		if rawPriority, ok := auth.Metadata["priority"]; ok {
			if priority, okPriority := parsePriorityValue(rawPriority); okPriority {
				entry.Priority = priority
			}
		}
	}
	if note := strings.TrimSpace(authAttribute(auth, "note")); note != "" {
		entry.Note = note
	} else if auth.Metadata != nil {
		if rawNote, ok := auth.Metadata["note"].(string); ok {
			entry.Note = strings.TrimSpace(rawNote)
		}
	}
	if baseURL := strings.TrimSpace(authAttribute(auth, "base_url")); baseURL != "" {
		entry.BaseURL = baseURL
	} else if auth.Metadata != nil {
		if rawBaseURL, ok := auth.Metadata["base_url"].(string); ok {
			entry.BaseURL = strings.TrimSpace(rawBaseURL)
		}
	}
	if websockets, ok := authWebsocketsValue(auth); ok {
		entry.Websockets = websockets
	}
	return entry
}

func (h *Host) resolvedAuthDir() string {
	if h == nil {
		return ""
	}
	h.mu.Lock()
	authDir := ""
	if h.runtimeConfig != nil {
		authDir = strings.TrimSpace(h.runtimeConfig.AuthDir)
	}
	h.mu.Unlock()
	if authDir == "" {
		return ""
	}
	authDir = filepath.Clean(authDir)
	if !filepath.IsAbs(authDir) {
		if abs, errAbs := filepath.Abs(authDir); errAbs == nil {
			authDir = abs
		}
	}
	return authDir
}

func (h *Host) authIDForPath(path string) string {
	return authIDForPath(path, h.resolvedAuthDir())
}

func authEmail(auth *coreauth.Auth) string {
	if auth == nil {
		return ""
	}
	if auth.Metadata != nil {
		if v, ok := auth.Metadata["email"].(string); ok {
			return strings.TrimSpace(v)
		}
	}
	if auth.Attributes != nil {
		if v := strings.TrimSpace(auth.Attributes["email"]); v != "" {
			return v
		}
		if v := strings.TrimSpace(auth.Attributes["account_email"]); v != "" {
			return v
		}
	}
	return ""
}

func authProjectID(auth *coreauth.Auth) string {
	if auth == nil {
		return ""
	}
	if auth.Metadata != nil {
		if v, ok := auth.Metadata["project_id"].(string); ok {
			if projectID := strings.TrimSpace(v); projectID != "" {
				return projectID
			}
		}
	}
	if auth.Attributes != nil {
		if projectID := strings.TrimSpace(auth.Attributes["project_id"]); projectID != "" {
			return projectID
		}
	}
	return ""
}

func authAttribute(auth *coreauth.Auth, key string) string {
	if auth == nil || len(auth.Attributes) == 0 {
		return ""
	}
	return auth.Attributes[key]
}

func isRuntimeOnlyAuth(auth *coreauth.Auth) bool {
	if auth == nil || len(auth.Attributes) == 0 {
		return false
	}
	return strings.EqualFold(strings.TrimSpace(auth.Attributes["runtime_only"]), "true")
}

func authWebsocketsValue(auth *coreauth.Auth) (bool, bool) {
	if auth == nil {
		return false, false
	}
	if auth.Attributes != nil {
		if raw := strings.TrimSpace(auth.Attributes["websockets"]); raw != "" {
			parsed, errParse := strconv.ParseBool(raw)
			if errParse == nil {
				return parsed, true
			}
		}
	}
	if auth.Metadata == nil {
		return false, false
	}
	return parseWebsocketsValue(auth.Metadata["websockets"])
}

func parsePriorityValue(raw any) (int, bool) {
	switch v := raw.(type) {
	case int:
		return v, true
	case int32:
		return int(v), true
	case int64:
		return int(v), true
	case float64:
		return int(v), true
	case string:
		parsed, err := strconv.Atoi(strings.TrimSpace(v))
		if err == nil {
			return parsed, true
		}
	}
	return 0, false
}

func parseBoolValue(raw any) (bool, bool) {
	switch v := raw.(type) {
	case bool:
		return v, true
	case string:
		parsed, errParse := strconv.ParseBool(strings.TrimSpace(v))
		if errParse == nil {
			return parsed, true
		}
	}
	return false, false
}

func parseWebsocketsValue(raw any) (bool, bool) {
	return parseBoolValue(raw)
}

func bytesTrimSpace(raw []byte) []byte {
	return []byte(strings.TrimSpace(string(raw)))
}

func hostRecentRequests(auth *coreauth.Auth) []pluginapi.HostRecentRequestEntry {
	if auth == nil {
		return nil
	}
	snapshot := auth.RecentRequestsSnapshot(time.Now())
	if len(snapshot) == 0 {
		return nil
	}
	out := make([]pluginapi.HostRecentRequestEntry, 0, len(snapshot))
	for _, entry := range snapshot {
		out = append(out, pluginapi.HostRecentRequestEntry{
			Time:    entry.Time,
			Success: entry.Success,
			Failed:  entry.Failed,
		})
	}
	return out
}