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use json::{JsonValue, object};
use crate::Field;

/// 附件
///
/// * require 是否必填
/// * field 字段名
/// * mode 模式 file
/// * title 字段描述
/// * length 附件数量
/// * def 默认值
pub struct Files {
    pub require: bool,
    pub field: String,
    pub mode: String,
    pub title: String,
    pub length: i32,
    pub encrypt: bool,
    pub size: usize,
    pub option: Vec<String>,
    pub show: bool,
    pub describe: String,
    pub def: String,
}

impl Files {
    pub fn new(require: bool, field: &str, title: &str) -> Self {
        Self {
            require,
            field: field.to_string(),
            mode: "file".to_string(),
            title: title.to_string(),
            length: 1,
            encrypt: false,
            size: 0,
            option: vec![],
            def: "".to_string(),
            show: true,
            describe: "".to_string(),
        }
    }

    pub fn encrypt(&mut self) -> &mut Self {
        self.encrypt = true;
        self
    }
    pub fn multiple(&mut self, number: i32) -> &mut Self {
        self.length = number;
        self
    }
    pub fn option(&mut self, option: Vec<&str>) -> &mut Self {
        self.option = option.iter().map(|c| c.to_string()).collect();
        self
    }
    pub fn size(&mut self, size: usize) -> &mut Self {
        self.size = {
            if size <= 0 {
                1024 * 1024
            } else {
                size
            }
        };
        self
    }
    pub fn def(&mut self, def: &str) -> &mut Self {
        self.def = def.to_string();
        self
    }
}

impl Field for Files {
    fn sql(&mut self, model: &str) -> String {
        let sql = format!("`{}` varchar({})  default '{}'", self.field, self.length * 64 + self.length, self.def);
        match model {
            "sqlite" => sql,
            _ => {
                format!("{} comment '{}|{}|{}|{}|{}'", sql.clone(), self.title, self.mode, self.require, self.length,self.def)
            }
        }
    }
    fn field(&mut self) -> JsonValue {
        let mut field = object! {};
        field.insert("require", JsonValue::from(self.require.clone())).unwrap();
        field.insert("field", JsonValue::from(self.field.clone())).unwrap();
        field.insert("mode", JsonValue::from(self.mode.clone())).unwrap();
        field.insert("title", JsonValue::from(self.title.clone())).unwrap();
        field.insert("length", JsonValue::from(self.length.clone())).unwrap();
        field.insert("encrypt", JsonValue::from(self.encrypt.clone())).unwrap();
        field.insert("size", JsonValue::from(self.size.clone())).unwrap();
        field.insert("option", JsonValue::from(self.option.clone())).unwrap();
        field.insert("show", JsonValue::from(self.show.clone())).unwrap();
        field.insert("describe", JsonValue::from(self.describe.clone())).unwrap();
        field.insert("def", JsonValue::from(self.def.clone())).unwrap();

        field
    }

    fn hide(&mut self) -> &mut Self {
        self.show = false;
        self
    }

    fn describe(&mut self, text: &str) -> &mut Self {
        self.describe = text.to_string();
        self
    }
}