#![cfg(all(
    any(feature = "gen-llvm", feature = "gen-wasm"),
    not(debug_assertions) // https://github.com/roc-lang/roc/issues/3898
))]

#[cfg(feature = "gen-llvm")]
use crate::helpers::llvm::assert_evals_to;

// #[cfg(feature = "gen-dev")]
// use crate::helpers::dev::assert_evals_to;

#[cfg(feature = "gen-wasm")]
use crate::helpers::wasm::assert_evals_to;

use indoc::indoc;
use roc_std::{RocList, RocStr};

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn dict_empty_len() {
    assert_evals_to!(
        indoc!(
            r"
            Dict.len (Dict.empty {})
            "
        ),
        0,
        u64
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn dict_insert_empty() {
    assert_evals_to!(
        indoc!(
            r"
            Dict.empty {}
                |> Dict.insert 42 32
                |> Dict.len
            "
        ),
        1,
        u64
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn dict_empty_contains() {
    assert_evals_to!(
        indoc!(
            r"
            empty : Dict.Dict I64 F64
            empty = Dict.empty {}

            Dict.contains empty 42
            "
        ),
        false,
        bool
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn dict_nonempty_contains() {
    assert_evals_to!(
        indoc!(
            r"
            empty : Dict.Dict I64 F64
            empty = Dict.insert (Dict.empty {}) 42 1.23

            Dict.contains empty 42
            "
        ),
        true,
        bool
    );
}

#[test]
#[ignore = "TODO figure out why this is broken with llvm wasm tests"]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn dict_empty_remove() {
    assert_evals_to!(
        indoc!(
            r"
            empty : Dict.Dict I64 F64
            empty = Dict.empty {}

            empty
                |> Dict.remove 42
                |> Dict.len
            "
        ),
        0,
        i64
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn dict_nonempty_remove() {
    assert_evals_to!(
        indoc!(
            r"
            empty : Dict.Dict I64 F64
            empty = Dict.insert (Dict.empty {}) 42 1.23

            empty
                |> Dict.remove 42
                |> Dict.len
                |> Num.toI64
            "
        ),
        0,
        i64
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn dict_nonempty_get() {
    assert_evals_to!(
        indoc!(
            r"
            empty : Dict.Dict I64 F64
            empty = Dict.insert (Dict.empty {}) 42 1.23

            withDefault = \x, def ->
                when  x is
                    Ok v -> v
                    Err _ -> def

            empty
                |> Dict.insert 42 1.23f64
                |> Dict.get 42
                |> withDefault 0
            "
        ),
        1.23,
        f64
    );

    assert_evals_to!(
        indoc!(
            r"
            withDefault = \x, def ->
                when  x is
                    Ok v -> v
                    Err _ -> def

            Dict.empty {}
                |> Dict.insert 42 1.23f64
                |> Dict.get 43
                |> withDefault 0
            "
        ),
        0.0,
        f64
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn keys() {
    assert_evals_to!(
        indoc!(
            r"
            myDict : Dict.Dict I64 I64
            myDict =
                Dict.empty {}
                    |> Dict.insert 0 100
                    |> Dict.insert 1 100
                    |> Dict.insert 2 100


            Dict.keys myDict
            "
        ),
        RocList::from_slice(&[0, 1, 2]),
        RocList<i64>
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn values() {
    assert_evals_to!(
        indoc!(
            r"
            myDict : Dict.Dict I64 I64
            myDict =
                Dict.empty {}
                    |> Dict.insert 0 100
                    |> Dict.insert 1 200
                    |> Dict.insert 2 300


            Dict.values myDict
            "
        ),
        RocList::from_slice(&[100, 200, 300]),
        RocList<i64>
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn from_list_with_fold_simple() {
    assert_evals_to!(
        indoc!(
            r"
            myDict : Dict.Dict I64 I64
            myDict =
                [1,2,3]
                    |> List.walk (Dict.empty {}) (\accum, value -> Dict.insert accum value value)

            Dict.values myDict
            "
        ),
        RocList::from_slice(&[1, 2, 3]),
        RocList<i64>
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn from_list_with_fold_reallocates() {
    assert_evals_to!(
        indoc!(
            r"
            range : I64, I64, List I64-> List I64
            range = \low, high, accum ->
                if low < high then
                    range (low + 1) high (List.append accum low)
                else
                    accum

            myDict : Dict.Dict I64 I64
            myDict =
                # 25 elements (8 + 16 + 1) is guaranteed to overflow/reallocate at least twice
                range 0 25 []
                    |> List.walk (Dict.empty {}) (\accum, value -> Dict.insert accum value value)

            Dict.values myDict
            "
        ),
        RocList::from_slice(&[
            0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,
            24
        ]),
        RocList<i64>
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn small_str_keys() {
    assert_evals_to!(
        indoc!(
            r#"
            myDict : Dict.Dict Str I64
            myDict =
                Dict.empty {}
                    |> Dict.insert "a" 100

            Dict.keys myDict
            "#
        ),
        RocList::from_slice(&["a".into()]),
        RocList<RocStr>
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn big_str_keys() {
    assert_evals_to!(
        indoc!(
            r#"
            myDict : Dict.Dict Str I64
            myDict =
                Dict.empty {}
                    |> Dict.insert "Leverage agile frameworks to provide a robust" 100
                    |> Dict.insert "synopsis for high level overviews. Iterative approaches" 200
                    |> Dict.insert "to corporate strategy foster collaborative thinking to" 300

            Dict.keys myDict
            "#
        ),
        RocList::from_slice(&[
            RocStr::from("Leverage agile frameworks to provide a robust"),
            RocStr::from("synopsis for high level overviews. Iterative approaches"),
            RocStr::from("to corporate strategy foster collaborative thinking to"),
        ]),
        RocList<RocStr>
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn big_str_values() {
    assert_evals_to!(
        indoc!(
            r#"
            myDict : Dict.Dict I64 Str
            myDict =
                Dict.empty {}
                    |> Dict.insert 100 "Leverage agile frameworks to provide a robust"
                    |> Dict.insert 200 "synopsis for high level overviews. Iterative approaches"
                    |> Dict.insert 300 "to corporate strategy foster collaborative thinking to"

            Dict.values myDict
            "#
        ),
        RocList::from_slice(&[
            RocStr::from("Leverage agile frameworks to provide a robust"),
            RocStr::from("synopsis for high level overviews. Iterative approaches"),
            RocStr::from("to corporate strategy foster collaborative thinking to"),
        ]),
        RocList<RocStr>
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn unit_values() {
    assert_evals_to!(
        indoc!(
            r"
            myDict : Dict.Dict I64 {}
            myDict =
                Dict.empty {}
                    |> Dict.insert 0 {}
                    |> Dict.insert 1 {}
                    |> Dict.insert 2 {}
                    |> Dict.insert 3 {}

            Num.toI64 (Dict.len myDict)
            "
        ),
        4,
        i64
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn single() {
    assert_evals_to!(
        indoc!(
            r"
            myDict : Dict.Dict I64 {}
            myDict =
                Dict.single 12345 {}

            Num.toI64 (Dict.len myDict)
            "
        ),
        1,
        i64
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn insert_all() {
    assert_evals_to!(
        indoc!(
            r"
            myDict : Dict I64 {}
            myDict =
                Dict.insertAll (Dict.single 0 {}) (Dict.single 1 {})

            Dict.len myDict
                |> Num.toI64
            "
        ),
        2,
        i64
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn insert_all_prefer_second() {
    assert_evals_to!(
        indoc!(
            r"
            myDict : Dict.Dict I64 I64
            myDict =
                (Dict.single 0 100)
                    |> Dict.insertAll (Dict.single 0 200)

            Dict.values myDict
            "
        ),
        RocList::from_slice(&[200]),
        RocList<i64>
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn keep_shared() {
    assert_evals_to!(
        indoc!(
            r"
            dict1 : Dict.Dict I64 {}
            dict1 =
                Dict.empty {}
                    |> Dict.insert 1 {}
                    |> Dict.insert 2 {}
                    |> Dict.insert 3 {}
                    |> Dict.insert 4 {}
                    |> Dict.insert 5 {}

            dict2 : Dict.Dict I64 {}
            dict2 =
                Dict.empty {}
                    |> Dict.insert 0 {}
                    |> Dict.insert 2 {}
                    |> Dict.insert 4 {}

            Dict.keepShared dict1 dict2
                |> Dict.len
                |> Num.toI64
            "
        ),
        2,
        i64
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn keep_shared_value_must_match() {
    assert_evals_to!(
        indoc!(
            r"
            dict1 : Dict.Dict I64 I64
            dict1 =
                Dict.empty {}
                    |> Dict.insert 1 1
                    |> Dict.insert 2 2
                    |> Dict.insert 3 3
                    |> Dict.insert 4 4
                    |> Dict.insert 5 5

            dict2 : Dict.Dict I64 I64
            dict2 =
                Dict.empty {}
                    |> Dict.insert 0 100
                    |> Dict.insert 2 2
                    |> Dict.insert 4 300

            Dict.keepShared dict1 dict2
                |> Dict.values
            "
        ),
        RocList::from_slice(&[2]),
        RocList<i64>
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn remove_all() {
    assert_evals_to!(
        indoc!(
            r"
            dict1 : Dict.Dict I64 {}
            dict1 =
                Dict.empty {}
                    |> Dict.insert 1 {}
                    |> Dict.insert 2 {}
                    |> Dict.insert 3 {}
                    |> Dict.insert 4 {}
                    |> Dict.insert 5 {}

            dict2 : Dict.Dict I64 {}
            dict2 =
                Dict.empty {}
                    |> Dict.insert 0 {}
                    |> Dict.insert 2 {}
                    |> Dict.insert 4 {}

            Dict.removeAll dict1 dict2
                |> Dict.len
                |> Num.toI64
            "
        ),
        3,
        i64
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn remove_all_prefer_first() {
    assert_evals_to!(
        indoc!(
            r"
            dict1 : Dict.Dict I64 I64
            dict1 =
                Dict.empty {}
                    |> Dict.insert 1 1
                    |> Dict.insert 2 2
                    |> Dict.insert 3 3
                    |> Dict.insert 4 4
                    |> Dict.insert 5 5

            dict2 : Dict.Dict I64 I64
            dict2 =
                Dict.empty {}
                    |> Dict.insert 0 100
                    |> Dict.insert 2 200
                    |> Dict.insert 4 300

            Dict.removeAll dict1 dict2
                |> Dict.values
            "
        ),
        RocList::from_slice(&[1, 5, 3]),
        RocList<i64>
    );
}

#[test]
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm"))]
fn walk_sum_keys() {
    assert_evals_to!(
        indoc!(
            r"
            dict1 : Dict.Dict I64 I64
            dict1 =
                Dict.empty {}
                    |> Dict.insert 1 1
                    |> Dict.insert 2 2
                    |> Dict.insert 3 3
                    |> Dict.insert 4 4
                    |> Dict.insert 5 5

            Dict.walk dict1 0 \k, _, a -> k + a
            "
        ),
        15,
        i64
    );
}