module xml

const sample_doc = '
<root>
    <c id="c1"/>
    <c id="c2">
        Sample Text
    </c>
    <empty/>
    <c id="c3"/>
    <abc id="c4"/>
    <xyz id="c5"/>
    <c id="c6"/>
    <cx id="c7"/>
    <cd id="c8"/>
    <child id="c9">
        More Sample Text
    </child>
    <cz id="c10"/>
</root>'

const xml_elements = [
    XMLNode{
        name:       'c'
        attributes: {
            'id': 'c1'
        }
    },
    XMLNode{
        name:       'c'
        attributes: {
            'id': 'c2'
        }
        children:   [
            'Sample Text',
        ]
    },
    XMLNode{
        name:       'empty'
        attributes: {}
    },
    XMLNode{
        name:       'c'
        attributes: {
            'id': 'c3'
        }
    },
    XMLNode{
        name:       'abc'
        attributes: {
            'id': 'c4'
        }
    },
    XMLNode{
        name:       'xyz'
        attributes: {
            'id': 'c5'
        }
    },
    XMLNode{
        name:       'c'
        attributes: {
            'id': 'c6'
        }
    },
    XMLNode{
        name:       'cx'
        attributes: {
            'id': 'c7'
        }
    },
    XMLNode{
        name:       'cd'
        attributes: {
            'id': 'c8'
        }
    },
    XMLNode{
        name:       'child'
        attributes: {
            'id': 'c9'
        }
        children:   [
            'More Sample Text',
        ]
    },
    XMLNode{
        name:       'cz'
        attributes: {
            'id': 'c10'
        }
    },
]

fn test_single_element_parsing() ! {
    mut reader := FullBufferReader{
        contents: sample_doc.bytes()
    }
    // Skip the "<root>" tag
    mut skip := []u8{len: 6}
    reader.read(mut skip)!

    mut local_buf := [u8(0)]
    mut ch := next_char(mut reader, mut local_buf)!

    mut count := 0

    for count < xml_elements.len {
        match ch {
            `<` {
                next_ch := next_char(mut reader, mut local_buf)!
                match next_ch {
                    `/` {}
                    else {
                        parsed_element := parse_single_node(next_ch, mut reader)!
                        assert xml_elements[count] == parsed_element
                        count++
                    }
                }

                ch = next_char(mut reader, mut local_buf)!
            }
            else {
                for ch != `<` {
                    ch = next_char(mut reader, mut local_buf)!
                }
            }
        }
    }
}