use std::{any::TypeId, borrow::Cow, num::NonZeroU32};

#[derive(Debug, Clone)]
pub enum PostgresDatatype {
    Bigint,
    Bigserial,
    Bit(Option<NonZeroU32>),
    BitVarying(Option<NonZeroU32>),
    Boolean,
    Box,
    Bytea,
    Character(Option<NonZeroU32>),
    CharacterVarying(Option<NonZeroU32>),
    Cidr,
    Circle,
    Date,
    DoublePrecision,
    Inet,
    Integer,
    Interval(Option<IntervalFields>,Option<u8>),
    Json,
    Jsonb,
    Line,
    Lseg,
    Macaddr,
    Macaddr8,
    Money,
    Numeric(Option<NumericConfig>),
    Path,
    PgLsn,
    PgSnapshot,
    Point,
    Polygon,
    Real,
    SmallInt,
    SmallSerial,
    Serial,
    Text,
    Time(Option<u8>),
    TimeTz(Option<u8>),
    Timestamp(Option<u8>),
    TimestampTz(Option<u8>),
    TsQuery,
    TsVector,
    TxidSnapshot,
    Uuid,
    Xml,
}

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum IntervalFields {
    Year,
    Month,
    Day,
    Hour,
    Minute,
    Second,
    YearToMonth,
    DayToHour,
    DayToMinute,
    DayToSecond,
    HourToMinute,
    HourToSecond,
    MinuteToSecond,
}

#[derive(Debug, Clone, Copy)]
pub enum NumericConfig {
    Precision(u16),
    PrecisionAndScale(u16, i16),
}

#[derive(Debug, Clone)]
pub struct Table {
    pub columns: Cow<'static, [Column]>,
}

#[derive(Debug, Clone)]
pub struct Column {
    pub postgres_name: Cow<'static, str>,
    pub postgres_datatype: PostgresDatatype,
    pub field_name: Cow<'static, str>,
    pub rust_type_id: fn() -> TypeId,
}