1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128

use std::fmt::{Debug, Formatter, Result, Write};

use crate::array::Array;
use crate::datatypes::{IntervalUnit, TimeUnit};
use crate::types::{days_ms, months_days_ns};

use super::super::super::temporal_conversions;
use super::super::super::types::NativeType;
use super::super::fmt::write_vec;
use super::PrimitiveArray;

macro_rules! dyn_primitive {
    ($array:expr, $ty:ty, $expr:expr) => {{
        let array = ($array as &dyn Array)
            .as_any()
            .downcast_ref::<PrimitiveArray<$ty>>()
            .unwrap();
        Box::new(move |f, index| write!(f, "{}", $expr(array.value(index))))
    }};
}

pub fn get_write_value<'a, T: NativeType, F: Write>(
    array: &'a PrimitiveArray<T>,
) -> Box<dyn Fn(&mut F, usize) -> Result + 'a> {
    use crate::datatypes::DataType::*;
    match array.data_type().to_logical_type() {
        Int8 => Box::new(|f, index| write!(f, "{}", array.value(index))),
        Int16 => Box::new(|f, index| write!(f, "{}", array.value(index))),
        Int32 => Box::new(|f, index| write!(f, "{}", array.value(index))),
        Int64 => Box::new(|f, index| write!(f, "{}", array.value(index))),
        UInt8 => Box::new(|f, index| write!(f, "{}", array.value(index))),
        UInt16 => Box::new(|f, index| write!(f, "{}", array.value(index))),
        UInt32 => Box::new(|f, index| write!(f, "{}", array.value(index))),
        UInt64 => Box::new(|f, index| write!(f, "{}", array.value(index))),
        Float16 => unreachable!(),
        Float32 => Box::new(|f, index| write!(f, "{}", array.value(index))),
        Float64 => Box::new(|f, index| write!(f, "{}", array.value(index))),
        Date32 => {
            dyn_primitive!(array, i32, temporal_conversions::date32_to_date)
        }
        Date64 => {
            dyn_primitive!(array, i64, temporal_conversions::date64_to_date)
        }
        Time32(TimeUnit::Second) => {
            dyn_primitive!(array, i32, temporal_conversions::time32s_to_time)
        }
        Time32(TimeUnit::Millisecond) => {
            dyn_primitive!(array, i32, temporal_conversions::time32ms_to_time)
        }
        Time32(_) => unreachable!(), // remaining are not valid
        Time64(TimeUnit::Microsecond) => {
            dyn_primitive!(array, i64, temporal_conversions::time64us_to_time)
        }
        Time64(TimeUnit::Nanosecond) => {
            dyn_primitive!(array, i64, temporal_conversions::time64ns_to_time)
        }
        Time64(_) => unreachable!(), // remaining are not valid
        Timestamp(time_unit, tz) => {
            if let Some(tz) = tz {
                let timezone = temporal_conversions::parse_offset(tz);
                match timezone {
                    Ok(timezone) => {
                        dyn_primitive!(array, i64, |time| {
                            temporal_conversions::timestamp_to_datetime(time, *time_unit, &timezone)
                        })
                    }
                    #[cfg(feature = "chrono-tz")]
                    Err(_) => {
                        let timezone = temporal_conversions::parse_offset_tz(tz).unwrap();
                        dyn_primitive!(array, i64, |time| {
                            temporal_conversions::timestamp_to_datetime(time, *time_unit, &timezone)
                        })
                    }
                    #[cfg(not(feature = "chrono-tz"))]
                    _ => panic!(
                        "Invalid Offset format (must be [-]00:00) or chrono-tz feature not active"
                    ),
                }
            } else {
                dyn_primitive!(array, i64, |time| {
                    temporal_conversions::timestamp_to_naive_datetime(time, *time_unit)
                })
            }
        }
        Interval(IntervalUnit::YearMonth) => {
            dyn_primitive!(array, i32, |x| format!("{}m", x))
        }
        Interval(IntervalUnit::DayTime) => {
            dyn_primitive!(array, days_ms, |x: days_ms| format!(
                "{}d{}ms",
                x.days(),
                x.milliseconds()
            ))
        }
        Interval(IntervalUnit::MonthDayNano) => {
            dyn_primitive!(array, months_days_ns, |x: months_days_ns| format!(
                "{}m{}d{}ns",
                x.months(),
                x.days(),
                x.ns()
            ))
        }
        Duration(TimeUnit::Second) => dyn_primitive!(array, i64, |x| format!("{}s", x)),
        Duration(TimeUnit::Millisecond) => dyn_primitive!(array, i64, |x| format!("{}ms", x)),
        Duration(TimeUnit::Microsecond) => dyn_primitive!(array, i64, |x| format!("{}us", x)),
        Duration(TimeUnit::Nanosecond) => dyn_primitive!(array, i64, |x| format!("{}ns", x)),
        Decimal(_, scale) => {
            // The number 999.99 has a precision of 5 and scale of 2
            let scale = *scale as u32;
            let display = move |x| {
                let base = x / 10i128.pow(scale);
                let decimals = x - base * 10i128.pow(scale);
                format!("{}.{}", base, decimals)
            };
            dyn_primitive!(array, i128, display)
        }
        _ => unreachable!(),
    }
}

impl<T: NativeType> Debug for PrimitiveArray<T> {
    fn fmt(&self, f: &mut Formatter<'_>) -> Result {
        let writer = get_write_value(self);

        write!(f, "{:?}", self.data_type())?;
        write_vec(f, &*writer, self.validity(), self.len(), "None", false)
    }
}