use serde_json::json;
use serde_valid::Validate;
use std::borrow::Cow;
use std::ffi::{OsStr, OsString};

#[test]
fn length_string_type() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_length = 4)]
        #[validate(max_length = 4)]
        val: String,
    }

    let s = TestStruct {
        val: String::from("test"),
    };
    assert!(s.validate().is_ok());
}

#[test]
fn length_str_type() {
    #[derive(Validate)]
    struct TestStruct<'a> {
        #[validate(min_length = 4)]
        #[validate(max_length = 4)]
        val: &'a str,
    }

    let s = TestStruct { val: "test" };
    assert!(s.validate().is_ok());
}

#[test]
fn length_cow_str_type() {
    #[derive(Validate)]
    struct TestStruct<'a> {
        #[validate(min_length = 4)]
        #[validate(max_length = 4)]
        val: Cow<'a, str>,
    }

    let s = TestStruct {
        val: Cow::from("test"),
    };
    assert!(s.validate().is_ok());
}

#[test]
fn length_os_str_type() {
    #[derive(Validate)]
    struct TestStruct<'a> {
        #[validate(min_length = 4)]
        #[validate(max_length = 4)]
        val: &'a OsStr,
    }

    let s = TestStruct {
        val: OsStr::new("fo�o"),
    };
    assert!(s.validate().is_ok());
}

#[test]
fn length_os_string_type() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_length = 4)]
        #[validate(max_length = 4)]
        val: OsString,
    }

    let s = TestStruct {
        val: OsString::from("fo�o"),
    };
    assert!(s.validate().is_ok());
}

#[test]
fn length_path_type() {
    #[derive(Validate)]
    struct TestStruct<'a> {
        #[validate(min_length = 13)]
        #[validate(max_length = 13)]
        val: &'a std::path::Path,
    }

    let s = TestStruct {
        val: std::path::Path::new("./foo/bar.txt"),
    };
    assert!(s.validate().is_ok());
}

#[test]
fn length_path_buf_type() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_length = 13)]
        #[validate(max_length = 13)]
        val: std::path::PathBuf,
    }

    let s = TestStruct {
        val: std::path::PathBuf::from("./foo/bar.txt"),
    };
    assert!(s.validate().is_ok());
}

#[test]
fn length_min_length_is_ok() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_length = 0)]
        #[validate(max_length = 10)]
        val: String,
    }

    let s = TestStruct { val: String::new() };
    assert!(s.validate().is_ok());
}

#[test]
fn length_min_length_is_err() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_length = 1)]
        #[validate(max_length = 10)]
        val: String,
    }

    let s = TestStruct { val: String::new() };
    assert!(s.validate().is_err());
}

#[test]
fn length_max_length_is_ok() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_length = 0)]
        #[validate(max_length = 5)]
        val: String,
    }

    let s = TestStruct {
        val: String::from("abcde"),
    };
    assert!(s.validate().is_ok());
}

#[test]
fn length_max_length_is_err() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_length = 1)]
        #[validate(max_length = 3)]
        val: String,
    }

    let s = TestStruct {
        val: String::from("abcd"),
    };
    assert!(s.validate().is_err());
}

#[test]
fn length_vec_type_is_ok() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_length = 0)]
        #[validate(min_length = 0)]
        val: Vec<String>,
    }

    let s = TestStruct {
        val: vec![String::from("abcd"), String::from("efg")],
    };
    assert!(s.validate().is_ok());
}

#[test]
fn length_nested_vec_type_is_ok() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_length = 0)]
        #[validate(max_length = 3)]
        val: Vec<Vec<String>>,
    }

    let s = TestStruct {
        val: vec![
            vec![String::from(""), String::from("1")],
            vec![String::from("12"), String::from("123")],
        ],
    };
    assert!(s.validate().is_ok());
}

#[test]
fn length_option_type_is_ok() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_length = 0)]
        #[validate(max_length = 5)]
        val: Option<String>,
    }

    let s = TestStruct {
        val: Some(String::from("abcd")),
    };
    assert!(s.validate().is_ok());
}

#[test]
fn length_option_type_is_err() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_length = 0)]
        #[validate(max_length = 5)]
        val: Option<String>,
    }

    let s = TestStruct {
        val: Some(String::from("abcdefg")),
    };

    assert_eq!(
        s.validate().unwrap_err().to_string(),
        json!(
            {
                "errors":[],
                "properties":{
                    "val":{
                        "errors": ["The length of the value must be `<= 5`."]
                    }
                }
            }
        )
        .to_string()
    );
}

#[test]
fn length_nested_option_type_is_ok() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_length = 0)]
        #[validate(max_length = 5)]
        val: Option<Option<String>>,
    }

    let s = TestStruct {
        val: Some(Some(String::from("abcd"))),
    };
    assert!(s.validate().is_ok());
}

#[test]
fn length_vec_optional_type_is_ok() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_length = 0)]
        #[validate(max_length = 5)]
        val: Vec<Option<String>>,
    }

    let s = TestStruct {
        val: vec![Some(String::from("abc")), Some(String::from("abcde")), None],
    };
    assert!(s.validate().is_ok());
}

#[test]
fn length_err_message() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_length = 1)]
        #[validate(max_length = 3)]
        val: String,
    }

    let s = TestStruct {
        val: String::from("test"),
    };

    assert_eq!(
        s.validate().unwrap_err().to_string(),
        json!({
            "errors": [],
            "properties": {
                "val": {
                    "errors": [
                        "The length of the value must be `<= 3`."
                    ]
                }
            }
        })
        .to_string()
    );
}

#[test]
fn length_custom_err_message_fn() {
    fn custom_min_error_message(_params: &serde_valid::MinLengthError) -> String {
        "this is min custom message.".to_string()
    }

    fn custom_max_error_message(_params: &serde_valid::MaxLengthError) -> String {
        "this is max custom message.".to_string()
    }

    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_length = 5, message_fn = custom_min_error_message)]
        #[validate(max_length = 3, message_fn = custom_max_error_message)]
        val: String,
    }

    let s = TestStruct {
        val: String::from("test"),
    };

    assert_eq!(
        s.validate().unwrap_err().to_string(),
        json!({
            "errors": [],
            "properties": {
                "val": {
                    "errors": [
                        "this is min custom message.",
                        "this is max custom message."
                    ]
                }
            }
        })
        .to_string()
    );
}

#[test]
fn length_custom_err_message() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_length = 5, message = "this is min custom message.")]
        #[validate(max_length = 3, message = "this is max custom message.")]
        val: String,
    }

    let s = TestStruct {
        val: String::from("test"),
    };

    assert_eq!(
        s.validate().unwrap_err().to_string(),
        json!({
            "errors": [],
            "properties": {
                "val": {
                    "errors": [
                        "this is min custom message.",
                        "this is max custom message."
                    ]
                }
            }
        })
        .to_string()
    );
}

#[test]
fn length_vec_err_message() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_length = 5, message = "this is min custom message.")]
        #[validate(max_length = 3, message = "this is max custom message.")]
        val: Vec<String>,
    }

    let s = TestStruct {
        val: vec![String::from("test")],
    };

    assert_eq!(
        s.validate().unwrap_err().to_string(),
        json!({
            "errors": [],
            "properties": {
                "val": {
                    "errors": [],
                    "items": {
                        "0": {
                            "errors": [
                                "this is min custom message.",
                                "this is max custom message."
                            ]
                        }
                    }
                }
            }
        })
        .to_string()
    );
}

#[test]
fn multi_items_error() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_items = 2)]
        #[validate(max_items = 5)]
        #[validate(min_length = 1)]
        #[validate(max_length = 5)]
        val: Vec<String>,
    }

    let s = TestStruct {
        val: vec![
            "user1",
            "",
            "user3",
            "too_long",
            "user5",
            "bbb",
            "last_error",
        ]
        .into_iter()
        .map(Into::into)
        .collect(),
    };

    assert_eq!(
        s.validate().unwrap_err().to_string(),
        json!(
            {
                "errors": [],
                "properties": {
                    "val": {
                        "errors": ["The length of the items must be `<= 5`."],
                        "items": {
                            "1": { "errors": ["The length of the value must be `>= 1`."] },
                            "3": { "errors": ["The length of the value must be `<= 5`."] },
                            "6": { "errors": ["The length of the value must be `<= 5`."] }
                        }
                    }
                }
            }
        )
        .to_string()
    );
}