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use strum_macros::{EnumIter, EnumString, IntoStaticStr};

/// State/Providence abreviations for declaring a state in the site.
#[derive(Debug, Hash, Clone, Copy, PartialEq, Eq, EnumString, IntoStaticStr, EnumIter)]
#[allow(missing_docs)]
pub enum StateProv {
    AL, // Alabama
    AK, // Alaska
    AZ, // Arizona
    AR, // Arkansas
    CA, // California
    CO, // Colorado
    CT, // Connecticut
    DE, // Delaware
    FL, // Florida
    GA, // Georgia
    HI, // Hawaii
    ID, // Idaho
    IL, // Illinois
    IN, // Indiana
    IA, // Iowa
    KS, // Kansas
    KY, // Kentucky
    LA, // Louisiana
    ME, // Maine
    MD, // Maryland
    MA, // Massachussetts
    MI, // Michigan
    MN, // Minnesota
    MS, // Mississippi
    MO, // Missouri
    MT, // Montana
    NE, // Nebraska
    NV, // Nevada
    NH, // New Hampshire
    NJ, // New Jersey
    NM, // New Mexico
    NY, // New York
    NC, // North Carolina
    ND, // North Dakota
    OH, // Ohio
    OK, // Oklahoma
    OR, // Oregon
    PA, // Pensylvania
    RI, // Rhode Island
    SC, // South Carolina
    SD, // South Dakota
    TN, // Tennessee
    TX, // Texas
    UT, // Utah
    VT, // Vermont
    VA, // Virginia
    WA, // Washington
    WV, // West Virginia
    WI, // Wisconsin
    WY, // Wyoming
    // US Commonwealth and Territories
    AS, // American Samoa
    DC, // District of Columbia
    FM, // Federated States of Micronesia
    MH, // Marshall Islands
    MP, // Northern Mariana Islands
    PW, // Palau
    PR, // Puerto Rico
    VI, // Virgin Islands
}

impl StateProv {
    /// Get a static string representation.
    pub fn as_static_str(self) -> &'static str {
        self.into()
    }
}

/*--------------------------------------------------------------------------------------------------
                                          Unit Tests
--------------------------------------------------------------------------------------------------*/
#[cfg(test)]
mod unit {
    use super::*;

    use std::str::FromStr;
    use strum::IntoEnumIterator;

    #[test]
    fn test_to_string_for_state_prov() {
        assert_eq!(StateProv::AL.as_static_str(), "AL");
    }

    #[test]
    fn test_from_string_for_state_prov() {
        assert_eq!(StateProv::from_str("AL").unwrap(), StateProv::AL);
    }

    #[test]
    fn round_trip_strings_for_state_prov() {
        for state_prov in StateProv::iter() {
            assert_eq!(
                StateProv::from_str(state_prov.as_static_str()).unwrap(),
                state_prov
            );
        }
    }
}