//! Parse a Foam file into a major structure.

use pest_derive::Parser;

#[derive(Parser)]
#[grammar = "foam.pest"]
struct FoamParser;

pub enum Foam {
    Attribution { name: String, value: String },
}

#[cfg(test)]
mod parser {
    use super::*;
    use pest::Parser;

    #[test]
    fn multi_comment() {
        let parse = FoamParser::parse(Rule::multi_comment, "/* this is comment */");
        assert!(parse.is_ok());
    }

    #[test]
    fn definition() {
        let parse = FoamParser::parse(Rule::definition, "foamFile");
        assert!(parse.is_ok(), "{:#?}", parse);
        let parse = FoamParser::parse(Rule::definition, "div(phi,U)");
        assert!(parse.is_ok(), "{:#?}", parse);
        let parse = FoamParser::parse(Rule::definition, "div((nuEff*dev2(T(grad(U)))))");
        assert!(parse.is_ok(), "{:#?}", parse);
        let parse = FoamParser::parse(Rule::definition, "FoamFile");
        assert!(parse.is_ok(), "{:#?}", parse);
        let parse = FoamParser::parse(Rule::definition, "foam_file");
        assert!(parse.is_ok());
    }

    #[test]
    fn attribution() {
        let parse = FoamParser::parse(Rule::attribution, "version 2.0;");
        assert!(parse.is_ok(), "{:#?}", parse);
        let parse = FoamParser::parse(Rule::attribution, "div(U)          Gauss linear;");
        assert!(parse.is_ok(), "{:#?}", parse);
    }

    #[test]
    fn broken_multi() {
        let parse = FoamParser::parse(Rule::multi_comment, "/* bad comment");
        assert!(parse.is_err());
    }

    #[test]
    fn single_comment() {
        let parse = FoamParser::parse(Rule::single_comment, "// this is comment");
        assert!(parse.is_ok());
    }

    #[test]
    fn broken_identifer() {
        let parse = FoamParser::parse(Rule::value, "123");
        assert!(parse.is_err(), "{:#?}", parse);

        let parse = FoamParser::parse(Rule::value, "asd ");
        assert!(parse.is_ok(), "{:?}", parse);
    }

    // #[test]
    // fn attribution() {
    //     let parse = FoamParser::parse(Rule::attribution, "version 2.0;");
    //     assert!(parse.is_ok(), "{:?}", parse);
    // }

    // #[test]
    // fn broken_attribution() {
    //     let parse = FoamParser::parse(Rule::attribution, "version 2.0");
    //     assert!(parse.is_err(), "{:?}", parse);
    // }

    // #[test]
    // fn dictionary() {
    //     let text = "FoamFile\n{\nversion 2.0;\nformat ascii;\nclass dictionary;\nlocation system;\nobject caseSetupDict;\n}";
    //     let parse = FoamParser::parse(Rule::dictionary, text);
    //     assert!(parse.is_ok(), "{:#?}", parse);
    // }

    // #[test]
    // fn dict_in_dict() {
    //     let text = "dict1 { dict2 { class bad; } }";
    //     let parse = FoamParser::parse(Rule::dictionary, text);
    //     assert!(parse.is_ok(), "{:#?}", parse);
    // }

    // #[test]
    // fn list() {
    //     let text = "list_name ( 1 2 3 );";
    //     let parse = FoamParser::parse(Rule::list, text);
    //     assert!(parse.is_ok(), "{:#?}", parse);
    // }

    // #[test]
    // fn sized_list() {
    //     let text = "list_name 3 ( 1 2 3 );";
    //     let parse = FoamParser::parse(Rule::list, text);
    //     assert!(parse.is_ok(), "{:#?}", parse);
    // }
}

// #[cfg(test)]
// mod file {
// use super::*;
// use pest::Parser;

// #[test]
// fn chained_comments() {
//     let text = "/* this is one comment */\n// And this is another";
//     let parse = FoamParser::parse(Rule::file, text);
//     assert!(parse.is_ok(), "{:?}", parse);
// }

// #[test]
// fn attribution_with_comment() {
//     let text = "version 2.0; // this is good";
//     let parse = FoamParser::parse(Rule::file, text);
//     assert!(parse.is_ok(), "{:?}", parse);
// }

// #[test]
// fn mid_comment() {
//     let text = "version /* this is comment */ 2.0;";
//     let parse = FoamParser::parse(Rule::file, text);
//     assert!(parse.is_ok(), "{:?}", parse);
// }

// #[test]
// fn complex() {
//     let text = "/* this is file */\nList ( 1\n2 // this is ok\n 3);";
//     let parse = FoamParser::parse(Rule::file, text);
//     assert!(parse.is_ok(), "{:?}", parse);
// }

// // Note: the following files were retrieved from OpenFoam examples:
// // https://develop.openfoam.com/Development/openfoam/-/tree/develop/tutorials/incompressible/pimpleFoam/RAS/rotatingFanInRoom/system
// #[test]
// fn control_dict() {
//     let text = include_bytes!("../resources/controlDict");
//     let parse = FoamParser::parse(Rule::file, &std::str::from_utf8(text).unwrap());
//     assert!(parse.is_ok(), "{:?}", parse);
// }

// #[test]
// fn block_mesh_dict() {
//     let text = include_bytes!("../resources/blockMeshDict");
//     let parse = FoamParser::parse(Rule::file, &std::str::from_utf8(text).unwrap());
//     assert!(parse.is_ok(), "{:?}", parse);
// }

// // #[test]
// // fn create_patch_dict() {
// //     let text = include_bytes!("../resources/createPatchDict");
// //     let parse = FoamParser::parse(Rule::file, &std::str::from_utf8(text).unwrap());
// //     assert!(parse.is_ok(), "{:?}", parse);
// // }

// #[test]
// fn fv_scheme() {
//     let text = include_bytes!("../resources/fvSchemes");
//     let parse = FoamParser::parse(Rule::file, &std::str::from_utf8(text).unwrap());
//     assert!(parse.is_ok(), "{:?}", parse);
// }
// }