//! 拼图领域错误。
//!
//! 错误只表达玩法规则失败，例如标签不足、移动非法或运行态不存在；
//! HTTP 状态码与 SpacetimeDB 字符串错误由 adapter 映射。

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

#[derive(Clone, Debug, PartialEq, Eq)]
pub enum PuzzleFieldError {
    MissingText,
    MissingSessionId,
    MissingProfileId,
    MissingRunId,
    MissingPieceId,
    MissingAuthorDisplayName,
    InvalidTagCount,
    InvalidGridSize,
    InvalidTargetCell,
    InvalidOperation,
}

impl fmt::Display for PuzzleFieldError {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match self {
            Self::MissingText => write!(f, "必填文本缺失"),
            Self::MissingSessionId => write!(f, "session_id 缺失"),
            Self::MissingProfileId => write!(f, "profile_id 缺失"),
            Self::MissingRunId => write!(f, "run_id 缺失"),
            Self::MissingPieceId => write!(f, "piece_id 缺失"),
            Self::MissingAuthorDisplayName => write!(f, "author_display_name 缺失"),
            Self::InvalidTagCount => write!(f, "标签数量不合法"),
            Self::InvalidGridSize => write!(f, "网格规格不合法"),
            Self::InvalidTargetCell => write!(f, "目标格子不合法"),
            Self::InvalidOperation => write!(f, "操作不合法"),
        }
    }
}

impl Error for PuzzleFieldError {}