use indexmap::IndexMap;
use openapiv3::*;

enum FileType {
    YAML,
    JSON,
}

static TEST_CASES: &[(FileType, &str, &str)] = &[
    (
        FileType::YAML,
        "quayio.yaml",
        include_str!("../fixtures/quayio.yaml"),
    ),
    (
        FileType::JSON,
        "quayio.json",
        include_str!("../fixtures/quayio.json"),
    ),
    (
        FileType::YAML,
        "petstore.yaml",
        include_str!("../fixtures/petstore.yaml"),
    ),
    (
        FileType::YAML,
        "petstore-discriminated.yaml",
        include_str!("../fixtures/petstore-discriminated.yaml"),
    ),
    (
        FileType::YAML,
        "api-with-examples.yaml",
        include_str!("../fixtures/api-with-examples.yaml"),
    ),
    (
        FileType::YAML,
        "link-example.yaml",
        include_str!("../fixtures/link-example.yaml"),
    ),
    (
        FileType::YAML,
        "callback-example.yaml",
        include_str!("../fixtures/callback-example.yaml"),
    ),
    (
        FileType::YAML,
        "docker.yaml",
        include_str!("../fixtures/docker.yaml"),
    ),
    (
        FileType::YAML,
        "forge.yaml",
        include_str!("../fixtures/forge.yaml"),
    ),
    (
        FileType::YAML,
        "adobe_aem.yaml",
        include_str!("../fixtures/adobe_aem.yaml"),
    ),
    (
        FileType::YAML,
        "azure_advisor.yaml",
        include_str!("../fixtures/azure_advisor.yaml"),
    ),
    (
        FileType::JSON,
        "polygon.json",
        include_str!("../fixtures/polygon.json"),
    ),
    (
        FileType::JSON,
        "slack.json",
        include_str!("../fixtures/slack.json"),
    ),
    (
        FileType::JSON,
        "swagger_generator.json",
        include_str!("../fixtures/swagger_generator.json"),
    ),
    (
        FileType::JSON,
        "twilio.json",
        include_str!("../fixtures/twilio.json"),
    ),
    (
        FileType::JSON,
        "fitbit.json",
        include_str!("../fixtures/fitbit.json"),
    ),
    (
        FileType::JSON,
        "walmart.json",
        include_str!("../fixtures/walmart.json"),
    ),
    (
        FileType::JSON,
        "xkcd.json",
        include_str!("../fixtures/xkcd.json"),
    ),
    (
        FileType::YAML,
        "authentiq.yaml",
        include_str!("../fixtures/authentiq.yaml"),
    ),
    (
        FileType::YAML,
        "stripe.yaml",
        include_str!("../fixtures/stripe.yaml"),
    ),
];

#[test]
fn run_tests() {
    for (file_type, name, contents) in TEST_CASES {
        println!("{}", name);
        let openapi: OpenAPI = match file_type {
            FileType::YAML => serde_yaml::from_str(contents)
                .expect(&format!("Could not deserialize file {}", name)),
            FileType::JSON => serde_json::from_str(contents)
                .expect(&format!("Could not deserialize file {}", name)),
        };
        let _yaml =
            serde_yaml::to_string(&openapi).expect(&format!("Could not serialize YAML {}", name));
        let _json =
            serde_json::to_string(&openapi).expect(&format!("Could not serialize JSON {}", name));
    }
}

macro_rules! map {
    ( $( $key:expr => $value:expr ),* $(,)? ) => {{
        #[allow(unused_mut)]
        let mut m = IndexMap::new();
        $(m.insert($key, $value);)*
        $crate::RefOrMap::from(m)
    }};
}

#[test]
fn petstore_discriminated() {
    use pretty_assertions::assert_eq;
    let api = OpenAPI {
        openapi: "3.0.0".to_owned(),
        info: Info {
            title: "Swagger Petstore".to_owned(),
            license: Some(License {
                name: "MIT".to_owned(),
                url: None,
                ..Default::default()
            }),
            version: "1.0.0".to_owned(),
            extensions: {
                let mut ext = IndexMap::new();
                ext.insert("x-hash".to_string(), serde_json::json!("abc123"));
                ext
            },
            ..Default::default()
        },
        servers: vec![Server {
            url: "http://petstore.swagger.io/v1".to_owned(),
            ..Default::default()
        }],
        components: Components {
            schemas: map! {
                "Cat".to_owned() => RefOr::Item(Schema {
                    data: SchemaData {
                        description: Some("A representation of a cat".to_owned()),
                        ..Default::default()
                    },
                    kind: SchemaKind::AllOf { all_of: vec![
                        RefOr::ref_("#/components/schemas/Pet"),
                        RefOr::Item(Schema {
                            data: Default::default(),
                            kind: SchemaKind::Type(Type::Object(ObjectType {
                                properties: map!{
                                    "huntingSkill".to_owned() => RefOr::Item(Schema {
                                        data: SchemaData {
                                            description: Some("The measured skill for hunting".to_owned()),
                                            ..Default::default()
                                        },
                                        kind: SchemaKind::Type(Type::String(StringType {
                                            enumeration: vec![
                                                "clueless".to_owned(),
                                                "lazy".to_owned(),
                                                "adventurous".to_owned(),
                                                "aggressive".to_owned(),
                                            ],
                                            ..Default::default()
                                        })),
                                    }),
                                },
                                required: vec!["huntingSkill".to_owned()],
                                ..Default::default()
                            })),
                        }),
                    ]},
                }),

                "Dog".to_owned() => RefOr::Item(Schema {
                    data: SchemaData {
                        description: Some("A representation of a dog".to_owned()),
                        ..Default::default()
                    },
                    kind: SchemaKind::AllOf { all_of: vec![
                        RefOr::ref_("#/components/schemas/Pet"),
                        RefOr::Item(Schema {
                            data: Default::default(),
                            kind: SchemaKind::Type(Type::Object(ObjectType {
                                properties: map!{
                                    "packSize".to_owned() => RefOr::Item(Schema {
                                        data: SchemaData {
                                            description: Some("the size of the pack the dog is from".to_owned()),
                                            ..Default::default()
                                        },
                                        kind: SchemaKind::Type(Type::Integer(IntegerType {
                                            format: VariantOrUnknownOrEmpty::Item(IntegerFormat::Int32),
                                            minimum: Some(0),
                                            ..Default::default()
                                        })),
                                    }),
                                },
                                required: vec!["packSize".to_owned()],
                                ..Default::default()
                            })),
                        }),
                    ]},
                }),

                "Pet".to_owned() => RefOr::Item(Schema {
                    data: SchemaData {
                        discriminator: Some(Discriminator {
                            property_name: "petType".to_owned(),
                            ..Default::default()
                        }),
                        ..Default::default()
                    },
                    kind: SchemaKind::Type(Type::Object(ObjectType {
                        properties: map!{
                            "name".to_owned() => RefOr::Item(Schema {
                                data: Default::default(),
                                kind: SchemaKind::Type(Type::String(Default::default())),
                            }),
                            "petType".to_owned() => RefOr::Item(Schema {
                                data: Default::default(),
                                kind: SchemaKind::Type(Type::String(Default::default())),
                            }),
                        },
                        required: vec!["name".to_owned(), "petType".to_owned()],
                        ..Default::default()
                    })),
                }),
            },
            ..Default::default()
        },
        ..Default::default()
    };
    let yaml = include_str!("../fixtures/petstore-discriminated.yaml");
    assert_eq!(serde_yaml::to_string(&api).unwrap(), yaml);
    assert_eq!(api, serde_yaml::from_str(yaml).unwrap());
}

#[test]
fn test_operation_extension_docs() {
    let slack = TEST_CASES.iter().find(|x| x.1 == "slack.json").unwrap();
    let api: OpenAPI =
        serde_json::from_str(slack.2).expect(&format!("Could not deserialize file {}", slack.1));
    let operation_extensions = api
        .paths
        .paths
        .iter()
        .filter_map(|(_, i)| match i {
            RefOr::Reference { .. } => None,
            RefOr::Item(item) => Some(item),
        })
        .flat_map(|item| item.iter())
        .flat_map(|(_, o)| o.extensions.iter().filter(|e| !e.0.starts_with("x-")))
        .collect::<Vec<_>>();

    println!("{:#?}", operation_extensions);
}

/// Globally defined security may be removed on a per-operation basis
/// by specifying an empty array for the `security` property. This
/// test validates this against the `adobe_aem.yaml` specification
/// which specifies `aemAuth` as the global security, and opting out
/// on GET `/libs/granite/core/content/login.html` operation.
#[test]
fn global_security_removed_with_override() {
    let openapi: OpenAPI = serde_yaml::from_str(include_str!("../fixtures/adobe_aem.yaml"))
        .expect(&format!("Could not deserialize adobe_aem.yaml"));

    // Global security is set
    assert!(!openapi.security.is_empty());

    // Security is overridden on one path. This path opts out of global security.
    let path_with_security_override = "/libs/granite/core/content/login.html";
    if let RefOr::Item(path_item) = openapi
        .paths
        .paths
        .get(path_with_security_override)
        .unwrap()
    {
        assert!(
            path_item.get.as_ref().unwrap().security.is_some(),
            "Spec removes global security with empty array."
        );
        assert!(
            path_item
                .get
                .as_ref()
                .unwrap()
                .security
                .as_ref()
                .unwrap()
                .is_empty(),
            "Spec removes global security with empty array."
        );
    } else {
        panic!("Path not found")
    }

    // Security is NOT overridden on other paths. Callers must uses global security.
    let path_no_security_override = "/libs/granite/security/truststore.json";
    if let RefOr::Item(path_item) =
        openapi.paths.paths.get(path_no_security_override).unwrap()
    {
        assert!(
            path_item.get.as_ref().unwrap().security.is_none(),
            "Spec does not specify security on this path."
        );
    } else {
        panic!("Path not found")
    }
}


#[test]
fn test_nested_refs_resolve() {
    let s = include_str!("../fixtures/nested_refs.yaml");
    let api: OpenAPI = serde_yaml::from_str(s).expect("Could not deserialize file");
    let s: RefOr<Schema> = RefOr::schema_ref("UserId");
    let t = s.resolve(&api);
    assert!(matches!(t.kind, SchemaKind::Type(Type::String(_))));
}

#[test]
#[should_panic(expected = "Circular reference: #/components/schemas/UserId")]
fn test_nested_refs_circular_panics() {
    let s = include_str!("../fixtures/nested_refs_circular.yaml");
    let api: OpenAPI = serde_yaml::from_str(s).expect("Could not deserialize file");
    let s: RefOr<Schema> = RefOr::schema_ref("UserId");
    s.resolve(&api);
}