mod de;
mod ser;

pub use de::from_any;
pub use ser::to_any;

#[cfg(test)]
mod test {
    use super::*;
    use crate::any;
    use crate::any::Any;
    use serde::{Deserialize, Serialize};
    use serde_json::json;
    use std::collections::HashMap;

    fn roundtrip(any: &Any) -> Any {
        // encode
        let mut buf = String::new();
        any.to_json(&mut buf);
        // decode
        Any::from_json(buf.as_str()).unwrap()
    }

    #[test]
    fn json_any_null() {
        let expected = Any::Null;
        let actual = roundtrip(&expected);
        assert_eq!(actual, expected);
    }

    #[test]
    fn json_any_bool() {
        for v in [true, false] {
            let expected = Any::Bool(v);
            let actual = roundtrip(&expected);
            assert_eq!(actual, expected);
        }
    }

    #[test]
    fn json_any_number() {
        for v in [1.8, -1.5, 0.2, 0.25, 2349464814556456.4] {
            let expected = Any::Number(v);
            let actual = roundtrip(&expected);
            assert_eq!(actual, expected);
        }
    }

    #[test]
    fn json_any_string() {
        for v in ["", "hello ", "hello \nworld", "hello \"world\"", "hello 😀"] {
            let expected = Any::String(v.into());
            let actual = roundtrip(&expected);
            assert_eq!(actual, expected);
        }
    }

    #[test]
    fn json_any_array() {
        let expected = Any::from(vec![
            Any::Number(-10.0),
            Any::String("hello \\world".into()),
            Any::Null,
            Any::Bool(true),
        ]);
        let actual = roundtrip(&expected);
        assert_eq!(actual, expected);
    }

    #[test]
    fn json_any_map() {
        let expected = Any::from(HashMap::from([
            ("a".to_string(), Any::Number(-10.2)),
            ("b".to_string(), Any::String("hello world".into())),
            ("c".to_string(), Any::Null),
            ("d".to_string(), Any::Bool(true)),
            ("e".to_string(), Any::from(vec![Any::String("abc".into())])),
            (
                "f".to_string(),
                Any::from(HashMap::from([("fa".to_string(), Any::Number(1.5))])),
            ),
        ]));
        let actual = roundtrip(&expected);
        assert_eq!(actual, expected);
    }

    #[test]
    fn test_struct_any_roundtrip() {
        #[derive(Debug, Serialize, Deserialize, Clone, PartialEq)]
        struct Test {
            bool: bool,
            int: i64,
            negative_int: i64,
            max_int: i64,
            min_int: i64,
            real_number: f64,
            max_number: f64,
            min_number: f64,
            null: Option<bool>,
            some: Option<bool>,
            undefined: Option<bool>,
            nested: Nested,
            enum_a: StringEnum,
            enum_b: StringEnum,
            enum_c: StringEnum,
            array: Vec<Option<Nested>>,
        }

        #[derive(Debug, Serialize, Deserialize, Clone, PartialEq)]
        struct Nested {
            int: i16,
            other: f32,
        }

        #[derive(Debug, Serialize, Deserialize, Clone, PartialEq)]
        enum StringEnum {
            VariantA,
            VariantB(String),
            VariantC { test: bool },
        }

        let test = Test {
            bool: true,
            int: 1,
            negative_int: -1,
            max_int: i64::MAX,
            min_int: i64::MIN,
            real_number: -123.2387f64,
            max_number: f64::MIN,
            min_number: f64::MAX,
            null: None,
            some: Some(false),
            undefined: None,
            nested: Nested {
                int: 100,
                other: 100.0,
            },
            enum_a: StringEnum::VariantA,
            enum_b: StringEnum::VariantB("test".to_string()),
            enum_c: StringEnum::VariantC { test: true },
            array: vec![None, Some(Nested { int: 0, other: 0.0 }), None],
        };

        assert_eq!(test, from_any(&to_any(&test).unwrap()).unwrap())
    }

    #[test]
    fn test_enum_untagged_any_roundtrip() {
        #[derive(Debug, Serialize, Deserialize, Clone, PartialEq)]
        struct Test {
            enum_a: StringEnum,
            enum_b: StringEnum,
            enum_c: StringEnum,
        }

        #[derive(Debug, Serialize, Deserialize, Clone, PartialEq)]
        #[serde(untagged)]
        enum StringEnum {
            VariantA,
            VariantB(String),
            VariantC { test: bool },
        }

        let test = Test {
            enum_a: StringEnum::VariantA,
            enum_b: StringEnum::VariantB("test".to_string()),
            enum_c: StringEnum::VariantC { test: true },
        };

        assert_eq!(test, from_any(&to_any(&test).unwrap()).unwrap())
    }

    #[test]
    fn test_any_to_json_roundtrip() {
        let any = Any::from(HashMap::from([
            ("bool".into(), Any::from(true)),
            ("int".into(), Any::from(1)),
            ("negativeInt".into(), Any::from(-1)),
            ("maxInt".into(), Any::from(i64::MAX)),
            ("minInt".into(), Any::from(i64::MIN)),
            ("realNumber".into(), Any::from(-123.2387f64)),
            ("maxNumber".into(), Any::from(f64::MIN)),
            ("minNumber".into(), Any::from(f64::MAX)),
            ("null".into(), Any::Null),
            (
                "map".into(),
                Any::from(HashMap::from([
                    ("bool".into(), Any::from(true)),
                    ("int".into(), Any::from(1)),
                    ("negativeInt".into(), Any::from(-1)),
                    ("maxInt".into(), Any::from(i64::MAX)),
                    ("minInt".into(), Any::from(i64::MIN)),
                    ("realNumber".into(), Any::from(-123.2387f64)),
                    ("maxNumber".into(), Any::from(f64::MIN)),
                    ("minNumber".into(), Any::from(f64::MAX)),
                    ("null".into(), Any::Null),
                ])),
            ),
            (
                "key6".into(),
                Any::from(vec![
                    Any::from(true),
                    Any::from(1),
                    Any::from(-1),
                    Any::from(i64::MAX),
                    Any::from(i64::MIN),
                    Any::from(-123.2387f64),
                    Any::from(f64::MIN),
                    Any::from(f64::MAX),
                    Any::Null,
                ]),
            ),
        ]));

        assert_eq!(
            any,
            serde_json::from_str::<Any>(serde_json::to_string(&any).unwrap().as_str()).unwrap()
        );
    }

    #[test]
    fn any_is_serde_json_convertible() {
        let any = any!({
            "bool": true,
            "int": 1,
            "negativeInt": -1,
            "realNumber": -123.2387f64,
            "null": Any::Null,
            "map": {
                "bool": true,
                "int": 1,
                "negativeInt": -1,
                "realNumber": -123.2387f64,
                "null": Any::Null
            },
            "key6":[
                true,
                1,
                -1,
                -123.2387f64,
                Any::Null
            ]
        });

        let expected = json!({
            "bool": true,
            "int": 1,
            "negativeInt": -1,
            "realNumber": -123.2387f64,
            "null": Any::Null,
            "map": {
                "bool": true,
                "int": 1,
                "negativeInt": -1,
                "realNumber": -123.2387f64,
                "null": Any::Null
            },
            "key6":[
                true,
                1,
                -1,
                -123.2387f64,
                Any::Null
            ]
        });

        let json = serde_json::to_value(&any).unwrap();
        assert_eq!(json, expected);
        let any2: Any = serde_json::from_value(json).unwrap();
        assert_eq!(any, any2);
    }
}