#ifndef TOKEN_H
#define TOKEN_H

#include <string>
#include <map>


struct Position {
    unsigned fileId;
    unsigned line;
    unsigned col;
    unsigned offset;

    Position();
    Position(unsigned fileId, unsigned line, unsigned col, unsigned offset);
};

/** Location of an ast node inside the source **/
struct Span {
    /** beginning (low) position **/
    Position lo;
    /** end (high) position **/
    Position hi;

    Span();
    Span(Position lo, Position hi);
    Span(Position lo);

    Span to(const Span& span) const;
};

enum class TokenType {
    COLON,
    SEMICOLON,
    LBRACE,
    RBRACE,
    LPAREN,
    RPAREN,
    LBRACKET,
    RBRACKET,
    LT,
    GT,

    KEYWORD,
    IDENTIFIER,
    NUMBER,
    STRING,

    NOT,
    COMMA,
    DOT,

    COLOR,

    EQUALS,
    COMMENT,
    WHITESPACE,

    IF,
    ELSE,

    DEFAULT,

    // BOOLEAN VALUE
    TRUE,
    FALSE,

    // KEYWORDS
    KW_NAME,
    KW_INFO,
    KW_HEADER,
    KW_DIRECTORY,
    KW_LIBRARY,
    KW_ADDRESS,
    KW_COMPONENT,
    KW_MESSAGES,
    KW_INSTANCE_NAME,
    KW_COUNT,
    KW_DISPLAY,
    KW_PIN,
    KW_TOOLTIP,
    KW_CONNECTION,
    KW_ATTRIBUTE,
    KW_SOURCE,
    KW_POPUP,
    KW_RULE,
    KW_TITLE,
    KW_TEXT,
    KW_BUS,
    KW_WIRES,
    KW_ENUMERATED,
    KW_WIRE,
    KW_INSTANCE,
    KW_SCHEMA,
    KW_POSITION,
    KW_SIZE,
    KW_UNKNOWN,

    // TYPES
    INT_TYPE,
    BOOL_TYPE,
    STRING_TYPE,
    WIRE_TYPE,

    // WIRE TYPES
    WIRE_DEFAULT,
    WIRE_AND,
    WIRE_OR,
    R_WIRE,

    // PIN_TYPES
    PIN_IN,
    PIN_OUT,
    PIN_IN_OUT,

    // COMPONENT TYPES
    CT_MEMORY,
    CT_PROCESSOR,

    // ACTION TYPES
    ERROR,
    WARNING,

    // OTHER
    END_OF_FILE
};

struct Token {
    TokenType type;
    Span span;
    std::string text;

    Token(TokenType type, Span span, std::string text);
};

#endif // TOKEN_H