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use std::{cmp::Ordering, io};
use versatile_data::{Activity, Data, KeyValue, Operation, Order, RowSet, Term};

pub struct Collection {
    pub(crate) data: Data,
    id: i32,
    name: String,
}
impl Collection {
    pub fn new(data: Data, id: i32, name: impl Into<String>) -> Self {
        Self {
            data,
            id,
            name: name.into(),
        }
    }
    pub fn id(&self) -> i32 {
        self.id
    }
    pub fn name(&self) -> &str {
        &self.name
    }
    pub fn activity(&self, row: u32) -> Activity {
        self.data.activity(row)
    }
    pub fn serial(&self, row: u32) -> u32 {
        self.data.serial(row)
    }
    pub fn uuid_str(&self, row: u32) -> String {
        self.data.uuid_str(row)
    }
    pub fn last_updated(&self, row: u32) -> i64 {
        self.data.last_updated(row)
    }
    pub fn term_begin(&self, row: u32) -> i64 {
        self.data.term_begin(row)
    }
    pub fn term_end(&self, row: u32) -> i64 {
        self.data.term_end(row)
    }
    pub fn field_bytes(&self, row: u32, field_name: &str) -> &[u8] {
        self.data.field_bytes(row, field_name)
    }
    pub fn field_num(&self, row: u32, field_name: &str) -> f64 {
        self.data.field_num(row, field_name)
    }
    pub fn create_row(
        &mut self,
        activity: &Activity,
        term_begin: &Term,
        term_end: &Term,
        fields: &Vec<KeyValue>,
    ) -> io::Result<u32> {
        self.data.create_row(activity, term_begin, term_end, fields)
    }
    pub fn update_row(
        &mut self,
        collection_row: u32,
        activity: &Activity,
        term_begin: &Term,
        term_end: &Term,
        fields: &Vec<KeyValue>,
    ) -> io::Result<()> {
        self.data
            .update_row(collection_row, &activity, &term_begin, &term_end, &fields)
    }
    pub fn update(&mut self, operation: &Operation) -> io::Result<u32> {
        self.data.update(operation)
    }
    pub fn sort(&self, rows: RowSet, orders: Vec<Order>) -> Vec<u32> {
        self.data.sort(rows, orders)
    }
}

#[derive(Clone, Copy, Default, Debug)]
pub struct CollectionRow {
    collection_id: i32,
    row: u32,
}
impl PartialOrd for CollectionRow {
    fn partial_cmp(&self, other: &CollectionRow) -> Option<Ordering> {
        Some(self.cmp(other))
    }
}
impl Ord for CollectionRow {
    fn cmp(&self, other: &CollectionRow) -> Ordering {
        if self.collection_id == other.collection_id {
            if self.row == other.row {
                Ordering::Equal
            } else if self.row > other.row {
                Ordering::Greater
            } else {
                Ordering::Less
            }
        } else if self.collection_id > other.collection_id {
            Ordering::Greater
        } else {
            Ordering::Less
        }
    }
}
impl PartialEq for CollectionRow {
    fn eq(&self, other: &CollectionRow) -> bool {
        self.collection_id == other.collection_id && self.row == other.row
    }
}
impl Eq for CollectionRow {}

impl CollectionRow {
    pub fn new(collection_id: i32, row: u32) -> Self {
        Self { collection_id, row }
    }
    pub fn collection_id(&self) -> i32 {
        self.collection_id
    }
    pub fn row(&self) -> u32 {
        self.row
    }
}