//! 认证领域错误。
//!
//! 领域错误保持可测试、可映射，不能直接依赖 Axum、cookie 或平台 provider 错误模型。

use std::{error::Error, fmt};

#[derive(Clone, Debug, PartialEq, Eq)]
pub enum PasswordEntryError {
    InvalidPhoneNumber,
    InvalidPasswordLength,
    InvalidDisplayName,
    InvalidAvatarDataUrl,
    EmptyProfileUpdate,
    InvalidPublicUserCode,
    InvalidCredentials,
    UserNotFound,
    Store(String),
    PasswordHash(String),
}

#[derive(Clone, Debug, PartialEq, Eq)]
pub enum PhoneAuthError {
    InvalidPhoneNumber,
    InvalidVerifyCode,
    VerifyCodeNotFound,
    VerifyCodeExpired,
    SendCoolingDown { retry_after_seconds: u64 },
    VerifyAttemptsExceeded,
    UserNotFound,
    UserStateMismatch,
    Store(String),
    PasswordHash(String),
}

#[derive(Clone, Debug, PartialEq, Eq)]
pub enum WechatAuthError {
    MissingProfile,
    StateNotFound,
    StateExpired,
    StateConsumed,
    UserNotFound,
    MissingWechatIdentity,
    Store(String),
    PasswordHash(String),
}

#[derive(Clone, Debug, PartialEq, Eq)]
pub enum RefreshSessionError {
    MissingToken,
    SessionNotFound,
    SessionExpired,
    UserNotFound,
    Store(String),
}

#[derive(Clone, Debug, PartialEq, Eq)]
pub enum LogoutError {
    UserNotFound,
    Store(String),
}

impl fmt::Display for PasswordEntryError {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match self {
            Self::InvalidPhoneNumber => f.write_str("手机号格式不正确"),
            Self::InvalidPasswordLength => f.write_str("密码长度需要在 6 到 128 位之间"),
            Self::InvalidDisplayName => f.write_str("昵称格式不正确"),
            Self::InvalidAvatarDataUrl => f.write_str("头像图片格式不正确"),
            Self::EmptyProfileUpdate => f.write_str("请至少修改昵称或头像"),
            Self::InvalidPublicUserCode => f.write_str("百梦号格式不正确"),
            Self::InvalidCredentials => f.write_str("手机号或密码错误"),
            Self::UserNotFound => f.write_str("用户不存在"),
            Self::Store(message) | Self::PasswordHash(message) => f.write_str(message),
        }
    }
}

impl Error for PasswordEntryError {}

impl fmt::Display for PhoneAuthError {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match self {
            Self::InvalidPhoneNumber => f.write_str("手机号格式不正确"),
            Self::InvalidVerifyCode => f.write_str("验证码错误"),
            Self::VerifyCodeNotFound => f.write_str("验证码不存在或已失效"),
            Self::VerifyCodeExpired => f.write_str("验证码已过期"),
            Self::SendCoolingDown { .. } => f.write_str("验证码发送过于频繁，请稍后再试"),
            Self::VerifyAttemptsExceeded => f.write_str("验证码错误次数过多，请重新获取验证码"),
            Self::UserNotFound => f.write_str("用户不存在"),
            Self::UserStateMismatch => f.write_str("当前账号状态不允许执行该操作"),
            Self::Store(message) | Self::PasswordHash(message) => f.write_str(message),
        }
    }
}

impl Error for PhoneAuthError {}

impl fmt::Display for WechatAuthError {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match self {
            Self::MissingProfile => f.write_str("缺少微信身份信息"),
            Self::StateNotFound => f.write_str("微信登录状态已失效，请重新发起登录"),
            Self::StateExpired => f.write_str("微信登录状态已过期，请重新发起登录"),
            Self::StateConsumed => f.write_str("微信登录状态已被消费，请重新发起登录"),
            Self::UserNotFound => f.write_str("用户不存在"),
            Self::MissingWechatIdentity => f.write_str("当前账号缺少微信身份"),
            Self::Store(message) | Self::PasswordHash(message) => f.write_str(message),
        }
    }
}

impl Error for WechatAuthError {}

impl fmt::Display for RefreshSessionError {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match self {
            Self::MissingToken => f.write_str("缺少刷新会话"),
            Self::SessionNotFound | Self::SessionExpired | Self::UserNotFound => {
                f.write_str("当前登录态已失效，请重新登录")
            }
            Self::Store(message) => f.write_str(message),
        }
    }
}

impl Error for RefreshSessionError {}

impl fmt::Display for LogoutError {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match self {
            Self::UserNotFound => f.write_str("当前登录态已失效，请重新登录"),
            Self::Store(message) => f.write_str(message),
        }
    }
}

impl Error for LogoutError {}

pub(crate) fn map_password_store_error(error: PasswordEntryError) -> RefreshSessionError {
    match error {
        PasswordEntryError::Store(message) => RefreshSessionError::Store(message),
        PasswordEntryError::InvalidPhoneNumber
        | PasswordEntryError::InvalidPasswordLength
        | PasswordEntryError::InvalidDisplayName
        | PasswordEntryError::InvalidAvatarDataUrl
        | PasswordEntryError::EmptyProfileUpdate
        | PasswordEntryError::InvalidPublicUserCode
        | PasswordEntryError::InvalidCredentials
        | PasswordEntryError::UserNotFound
        | PasswordEntryError::PasswordHash(_) => {
            RefreshSessionError::Store("用户仓储读取失败".to_string())
        }
    }
}

pub(crate) fn map_password_error_to_phone_error(error: PasswordEntryError) -> PhoneAuthError {
    match error {
        PasswordEntryError::Store(message) => PhoneAuthError::Store(message),
        PasswordEntryError::PasswordHash(message) => PhoneAuthError::PasswordHash(message),
        PasswordEntryError::InvalidPhoneNumber
        | PasswordEntryError::InvalidPasswordLength
        | PasswordEntryError::InvalidDisplayName
        | PasswordEntryError::InvalidAvatarDataUrl
        | PasswordEntryError::EmptyProfileUpdate
        | PasswordEntryError::InvalidPublicUserCode
        | PasswordEntryError::InvalidCredentials
        | PasswordEntryError::UserNotFound => PhoneAuthError::Store("用户仓储读取失败".to_string()),
    }
}

pub(crate) fn map_password_error_to_logout_error(error: PasswordEntryError) -> LogoutError {
    match error {
        PasswordEntryError::Store(message) => LogoutError::Store(message),
        PasswordEntryError::InvalidPhoneNumber
        | PasswordEntryError::InvalidPasswordLength
        | PasswordEntryError::InvalidDisplayName
        | PasswordEntryError::InvalidAvatarDataUrl
        | PasswordEntryError::EmptyProfileUpdate
        | PasswordEntryError::InvalidPublicUserCode
        | PasswordEntryError::InvalidCredentials
        | PasswordEntryError::UserNotFound
        | PasswordEntryError::PasswordHash(_) => LogoutError::Store("用户仓储读取失败".to_string()),
    }
}

pub(crate) fn map_refresh_error_to_logout_error(error: RefreshSessionError) -> LogoutError {
    match error {
        RefreshSessionError::Store(message) => LogoutError::Store(message),
        RefreshSessionError::MissingToken
        | RefreshSessionError::SessionNotFound
        | RefreshSessionError::SessionExpired
        | RefreshSessionError::UserNotFound => LogoutError::Store("会话吊销失败".to_string()),
    }
}