rchan 0.4.0

4chan api wrapper and client.
Documentation 
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use super::*;

#[derive(Debug, Deserialize, Clone)]
pub(crate) struct PostPre {
	pub no: u32,
	resto: u32,
	now: String,
	time: u64,
	#[serde(rename = "name", default)]
	author: String,
	trip: Option<String>,
	#[serde(rename = "id")]
	author_id: Option<String>,
	capcode: Option<Capcode>,
	country: Option<String>,
	country_name: Option<String>,
	board_flag: Option<String>,
	flag_name: Option<String>,
	#[serde(rename = "com")]
	comment: Option<String>,
	#[serde(flatten)]
	attachment: AttachmentPre,
	#[serde(
		rename = "filedeleted",
		default,
		deserialize_with = "crate::int_to_bool"
	)]
	file_deleted: bool,
	#[serde(rename = "since4pass")]
	since_4pass: Option<i32>,
}

#[derive(Debug, Deserialize, Clone)]
pub(crate) struct AttachmentPre {
	#[serde(rename = "tim")]
	id: Option<u64>,
	#[serde(default)]
	filename: String,
	ext: Option<String>,
	#[serde(default, rename = "fsize")]
	size: u64,
	#[serde(default)]
	md5: String,
	#[serde(default, rename = "w")]
	width: i32,
	#[serde(default, rename = "h")]
	height: i32,
	#[serde(default, rename = "tn_w")]
	thumbnail_width: i32,
	#[serde(default, rename = "tn_h")]
	thumbnail_height: i32,
	#[serde(default, deserialize_with = "crate::int_to_bool")]
	spoiler: bool,
	#[serde(rename = "m_img", deserialize_with = "crate::int_to_bool", default)]
	mobile_optimized: bool,
}

impl TryFrom<AttachmentPre> for Attachment {
	type Error = &'static str;

	fn try_from(pre: AttachmentPre) -> Result<Self, Self::Error> {
		let AttachmentPre {
			filename,
			id,
			ext,
			size,
			md5,
			width,
			height,
			thumbnail_width,
			thumbnail_height,
			spoiler,
			mobile_optimized,
		} = pre;

		match (id, ext) {
			(None, _) | (_, None) => Err("the ext and the id field must not be None"),
			(Some(i), Some(x)) => Ok(Self {
				id: i,
				filename,
				ext: x,
				size,
				md5,
				width,
				height,
				thumbnail_width,
				thumbnail_height,
				spoiler,
				mobile_optimized,
			}),
		}
	}
}

impl From<PostPre> for Post {
	fn from(pre: PostPre) -> Self {
		let PostPre {
			no,
			resto,
			now,
			time,
			author,
			trip,
			author_id,
			capcode,
			country,
			country_name,
			board_flag,
			flag_name,
			comment,
			attachment,
			file_deleted,
			since_4pass,
		} = pre;

		let attachment = Attachment::try_from(attachment).ok();

		Self {
			no,
			resto,
			now,
			time,
			author,
			trip,
			author_id,
			capcode,
			country,
			country_name,
			board_flag,
			flag_name,
			comment,
			attachment,
			file_deleted,
			since_4pass,
		}
	}
}