package baidu

import (
	"fmt"
	"path"
	"time"
)

type APIError struct {
	Errno     int    `json:"errno"`
	ErrorCode int    `json:"error_code"`
	ErrorMsg  string `json:"error_msg"`
	Errmsg    string `json:"errmsg"`
	RequestID any    `json:"request_id"`
}

func (e *APIError) Code() int {
	if e.Errno != 0 {
		return e.Errno
	}
	return e.ErrorCode
}

func (e *APIError) Error() string {
	msg := e.ErrorMsg
	if msg == "" {
		msg = e.Errmsg
	}
	if msg == "" {
		msg = "Baidu API request failed"
	}
	return fmt.Sprintf("%s (code=%d, request_id=%v)", msg, e.Code(), e.RequestID)
}

type File struct {
	FSID           int64  `json:"fs_id"`
	Category       int    `json:"category"`
	Size           int64  `json:"size"`
	Path           string `json:"path"`
	ServerFilename string `json:"server_filename"`
	MD5            string `json:"md5"`
	IsDir          int    `json:"isdir"`
	ServerCTime    int64  `json:"server_ctime"`
	ServerMTime    int64  `json:"server_mtime"`
	LocalCTime     int64  `json:"local_ctime"`
	LocalMTime     int64  `json:"local_mtime"`
	CTime          int64  `json:"ctime"`
	MTime          int64  `json:"mtime"`
	DLink          string `json:"dlink,omitempty"`
}

func (f File) Name() string {
	if f.ServerFilename != "" {
		return f.ServerFilename
	}
	return path.Base(f.Path)
}

func (f File) IsDirectory() bool { return f.IsDir == 1 }

func (f File) ModTime() time.Time {
	stamp := f.LocalMTime
	if stamp == 0 {
		stamp = f.ServerMTime
	}
	if stamp == 0 {
		stamp = f.MTime
	}
	return time.Unix(stamp, 0)
}

type Quota struct {
	Total int64 `json:"total"`
	Used  int64 `json:"used"`
}

type Token struct {
	AccessToken  string `json:"access_token"`
	RefreshToken string `json:"refresh_token"`
	ExpiresIn    int64  `json:"expires_in"`
	Scope        string `json:"scope"`
}

type OAuthError struct {
	ErrorCode        string `json:"error"`
	ErrorDescription string `json:"error_description"`
}

func (e *OAuthError) Error() string {
	return fmt.Sprintf("OAuth error %s: %s", e.ErrorCode, e.ErrorDescription)
}