"use strict";
/**
 * AeThex Compiler - Parser (AST Builder)
 * Converts tokens into Abstract Syntax Tree
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.Parser = void 0;
const Lexer_1 = require("./Lexer");
class Parser {
    constructor(tokens) {
        this.current = 0;
        this.tokens = tokens;
    }
    parse() {
        const body = [];
        while (!this.isAtEnd()) {
            const node = this.parseTopLevel();
            if (node) {
                body.push(node);
            }
        }
        return {
            type: 'Program',
            body,
            line: 1
        };
    }
    parseTopLevel() {
        if (this.check(Lexer_1.TokenType.REALITY)) {
            return this.parseReality();
        }
        if (this.check(Lexer_1.TokenType.JOURNEY)) {
            return this.parseJourney();
        }
        if (this.check(Lexer_1.TokenType.IMPORT)) {
            return this.parseImport();
        }
        this.advance();
        return null;
    }
    parseReality() {
        const token = this.consume(Lexer_1.TokenType.REALITY, 'Expected "reality"');
        const name = this.consume(Lexer_1.TokenType.IDENTIFIER, 'Expected reality name').value;
        this.consume(Lexer_1.TokenType.LEFT_BRACE, 'Expected "{"');
        const properties = {};
        while (!this.check(Lexer_1.TokenType.RIGHT_BRACE) && !this.isAtEnd()) {
            const key = this.consume(Lexer_1.TokenType.IDENTIFIER, 'Expected property name').value;
            this.consume(Lexer_1.TokenType.COLON, 'Expected ":"');
            if (this.check(Lexer_1.TokenType.LEFT_BRACKET)) {
                properties[key] = this.parseArray();
            }
            else if (this.check(Lexer_1.TokenType.STRING)) {
                properties[key] = this.advance().value;
            }
            else if (this.check(Lexer_1.TokenType.IDENTIFIER)) {
                const value = this.advance().value;
                if (value === 'all') {
                    properties[key] = ['all'];
                }
                else {
                    properties[key] = value;
                }
            }
        }
        this.consume(Lexer_1.TokenType.RIGHT_BRACE, 'Expected "}"');
        return {
            type: 'Reality',
            name,
            properties,
            line: token.line
        };
    }
    parseJourney() {
        const token = this.consume(Lexer_1.TokenType.JOURNEY, 'Expected "journey"');
        const name = this.consume(Lexer_1.TokenType.IDENTIFIER, 'Expected journey name').value;
        this.consume(Lexer_1.TokenType.LEFT_PAREN, 'Expected "("');
        const params = [];
        while (!this.check(Lexer_1.TokenType.RIGHT_PAREN) && !this.isAtEnd()) {
            params.push(this.consume(Lexer_1.TokenType.IDENTIFIER, 'Expected parameter name').value);
            if (!this.check(Lexer_1.TokenType.RIGHT_PAREN)) {
                this.consume(Lexer_1.TokenType.COMMA, 'Expected ","');
            }
        }
        this.consume(Lexer_1.TokenType.RIGHT_PAREN, 'Expected ")"');
        this.consume(Lexer_1.TokenType.LEFT_BRACE, 'Expected "{"');
        const body = [];
        while (!this.check(Lexer_1.TokenType.RIGHT_BRACE) && !this.isAtEnd()) {
            const stmt = this.parseStatement();
            if (stmt) {
                body.push(stmt);
            }
        }
        this.consume(Lexer_1.TokenType.RIGHT_BRACE, 'Expected "}"');
        return {
            type: 'Journey',
            name,
            params,
            body,
            line: token.line
        };
    }
    parseImport() {
        const token = this.consume(Lexer_1.TokenType.IMPORT, 'Expected "import"');
        this.consume(Lexer_1.TokenType.LEFT_BRACE, 'Expected "{"');
        const specifiers = [];
        while (!this.check(Lexer_1.TokenType.RIGHT_BRACE) && !this.isAtEnd()) {
            specifiers.push(this.consume(Lexer_1.TokenType.IDENTIFIER, 'Expected identifier').value);
            if (!this.check(Lexer_1.TokenType.RIGHT_BRACE)) {
                this.consume(Lexer_1.TokenType.COMMA, 'Expected ","');
            }
        }
        this.consume(Lexer_1.TokenType.RIGHT_BRACE, 'Expected "}"');
        this.consume(Lexer_1.TokenType.FROM, 'Expected "from"');
        const source = this.consume(Lexer_1.TokenType.STRING, 'Expected string').value;
        return {
            type: 'Import',
            specifiers,
            source,
            line: token.line
        };
    }
    parseStatement() {
        // Skip platform declarations
        if (this.check(Lexer_1.TokenType.PLATFORM)) {
            this.advance();
            this.consume(Lexer_1.TokenType.COLON, 'Expected ":"');
            this.advance(); // skip platform name or block
            return null;
        }
        if (this.check(Lexer_1.TokenType.LET)) {
            return this.parseLetStatement();
        }
        if (this.check(Lexer_1.TokenType.WHEN)) {
            return this.parseWhenStatement();
        }
        if (this.check(Lexer_1.TokenType.NOTIFY)) {
            return this.parseNotifyStatement();
        }
        if (this.check(Lexer_1.TokenType.REVEAL)) {
            return this.parseRevealStatement();
        }
        if (this.check(Lexer_1.TokenType.SYNC)) {
            return this.parseSyncStatement();
        }
        if (this.check(Lexer_1.TokenType.RETURN)) {
            return this.parseReturnStatement();
        }
        // Expression statement
        const expr = this.parseExpression();
        return {
            type: 'ExpressionStatement',
            expression: expr,
            line: this.peek().line
        };
    }
    parseLetStatement() {
        const token = this.consume(Lexer_1.TokenType.LET, 'Expected "let"');
        const identifier = this.consume(Lexer_1.TokenType.IDENTIFIER, 'Expected identifier').value;
        this.consume(Lexer_1.TokenType.EQUALS, 'Expected "="');
        const value = this.parseExpression();
        return {
            type: 'LetStatement',
            identifier,
            value,
            line: token.line
        };
    }
    parseWhenStatement() {
        const token = this.consume(Lexer_1.TokenType.WHEN, 'Expected "when"');
        const condition = this.parseExpression();
        this.consume(Lexer_1.TokenType.LEFT_BRACE, 'Expected "{"');
        const consequent = [];
        while (!this.check(Lexer_1.TokenType.RIGHT_BRACE) && !this.isAtEnd()) {
            const stmt = this.parseStatement();
            if (stmt) {
                consequent.push(stmt);
            }
        }
        this.consume(Lexer_1.TokenType.RIGHT_BRACE, 'Expected "}"');
        let alternate;
        if (this.check(Lexer_1.TokenType.OTHERWISE)) {
            this.advance();
            this.consume(Lexer_1.TokenType.LEFT_BRACE, 'Expected "{"');
            alternate = [];
            while (!this.check(Lexer_1.TokenType.RIGHT_BRACE) && !this.isAtEnd()) {
                const stmt = this.parseStatement();
                if (stmt) {
                    alternate.push(stmt);
                }
            }
            this.consume(Lexer_1.TokenType.RIGHT_BRACE, 'Expected "}"');
        }
        return {
            type: 'WhenStatement',
            condition,
            consequent,
            alternate,
            line: token.line
        };
    }
    parseNotifyStatement() {
        const token = this.consume(Lexer_1.TokenType.NOTIFY, 'Expected "notify"');
        const message = this.parseExpression();
        return {
            type: 'NotifyStatement',
            message,
            line: token.line
        };
    }
    parseRevealStatement() {
        const token = this.consume(Lexer_1.TokenType.REVEAL, 'Expected "reveal"');
        const value = this.parseExpression();
        return {
            type: 'RevealStatement',
            value,
            line: token.line
        };
    }
    parseSyncStatement() {
        const token = this.consume(Lexer_1.TokenType.SYNC, 'Expected "sync"');
        const target = this.parseExpression();
        this.consume(Lexer_1.TokenType.ACROSS, 'Expected "across"');
        const platforms = this.parseArray();
        return {
            type: 'SyncStatement',
            target,
            platforms: platforms.map(p => p.toString()),
            line: token.line
        };
    }
    parseReturnStatement() {
        const token = this.consume(Lexer_1.TokenType.RETURN, 'Expected "return"');
        return {
            type: 'ReturnStatement',
            line: token.line
        };
    }
    parseExpression() {
        return this.parseComparison();
    }
    parseComparison() {
        let expr = this.parseAdditive();
        while (this.check(Lexer_1.TokenType.LESS_THAN) ||
            this.check(Lexer_1.TokenType.GREATER_THAN) ||
            this.check(Lexer_1.TokenType.LESS_EQUALS) ||
            this.check(Lexer_1.TokenType.GREATER_EQUALS) ||
            this.check(Lexer_1.TokenType.EQUALS_EQUALS) ||
            this.check(Lexer_1.TokenType.NOT_EQUALS)) {
            const operator = this.advance().value;
            const right = this.parseAdditive();
            expr = {
                type: 'BinaryExpression',
                operator,
                left: expr,
                right,
                line: this.peek().line
            };
        }
        return expr;
    }
    parseAdditive() {
        let expr = this.parseMultiplicative();
        while (this.check(Lexer_1.TokenType.PLUS) || this.check(Lexer_1.TokenType.MINUS)) {
            const operator = this.advance().value;
            const right = this.parseMultiplicative();
            expr = {
                type: 'BinaryExpression',
                operator,
                left: expr,
                right,
                line: this.peek().line
            };
        }
        return expr;
    }
    parseMultiplicative() {
        let expr = this.parseUnary();
        while (this.check(Lexer_1.TokenType.STAR) || this.check(Lexer_1.TokenType.SLASH)) {
            const operator = this.advance().value;
            const right = this.parseUnary();
            expr = {
                type: 'BinaryExpression',
                operator,
                left: expr,
                right,
                line: this.peek().line
            };
        }
        return expr;
    }
    parseUnary() {
        // Handle unary operators like !, -, +
        if (this.check(Lexer_1.TokenType.BANG) || this.check(Lexer_1.TokenType.MINUS) || this.check(Lexer_1.TokenType.PLUS)) {
            const operator = this.advance().value;
            const operand = this.parseUnary(); // Recursively parse for chained unary operators
            return {
                type: 'UnaryExpression',
                operator,
                operand,
                line: this.peek().line
            };
        }
        return this.parsePostfix();
    }
    parsePostfix() {
        let expr = this.parsePrimary();
        while (true) {
            if (this.check(Lexer_1.TokenType.DOT)) {
                this.advance();
                const property = {
                    type: 'Identifier',
                    name: this.consume(Lexer_1.TokenType.IDENTIFIER, 'Expected property name').value,
                    line: this.peek().line
                };
                expr = {
                    type: 'MemberExpression',
                    object: expr,
                    property,
                    line: this.peek().line
                };
            }
            else if (this.check(Lexer_1.TokenType.LEFT_PAREN)) {
                this.advance();
                const args = [];
                while (!this.check(Lexer_1.TokenType.RIGHT_PAREN) && !this.isAtEnd()) {
                    args.push(this.parseExpression());
                    if (!this.check(Lexer_1.TokenType.RIGHT_PAREN)) {
                        this.consume(Lexer_1.TokenType.COMMA, 'Expected ","');
                    }
                }
                this.consume(Lexer_1.TokenType.RIGHT_PAREN, 'Expected ")"');
                expr = {
                    type: 'CallExpression',
                    callee: expr,
                    arguments: args,
                    line: this.peek().line
                };
            }
            else {
                break;
            }
        }
        return expr;
    }
    parsePrimary() {
        if (this.check(Lexer_1.TokenType.NUMBER)) {
            const token = this.advance();
            return {
                type: 'Literal',
                value: parseFloat(token.value),
                raw: token.value,
                line: token.line
            };
        }
        if (this.check(Lexer_1.TokenType.STRING)) {
            const token = this.advance();
            return {
                type: 'Literal',
                value: token.value,
                raw: `"${token.value}"`,
                line: token.line
            };
        }
        if (this.check(Lexer_1.TokenType.LEFT_BRACKET)) {
            return this.parseArrayExpression();
        }
        if (this.check(Lexer_1.TokenType.LEFT_BRACE)) {
            return this.parseObjectExpression();
        }
        if (this.check(Lexer_1.TokenType.NEW)) {
            return this.parseNewExpression();
        }
        if (this.check(Lexer_1.TokenType.IDENTIFIER)) {
            const token = this.advance();
            return {
                type: 'Identifier',
                name: token.value,
                line: token.line
            };
        }
        if (this.check(Lexer_1.TokenType.LEFT_PAREN)) {
            this.advance();
            const expr = this.parseExpression();
            this.consume(Lexer_1.TokenType.RIGHT_PAREN, 'Expected ")"');
            return expr;
        }
        throw new Error(`Unexpected token: ${this.peek().value} at line ${this.peek().line}`);
    }
    parseArrayExpression() {
        const token = this.consume(Lexer_1.TokenType.LEFT_BRACKET, 'Expected "["');
        const elements = [];
        while (!this.check(Lexer_1.TokenType.RIGHT_BRACKET) && !this.isAtEnd()) {
            elements.push(this.parseExpression());
            if (!this.check(Lexer_1.TokenType.RIGHT_BRACKET)) {
                this.consume(Lexer_1.TokenType.COMMA, 'Expected ","');
            }
        }
        this.consume(Lexer_1.TokenType.RIGHT_BRACKET, 'Expected "]"');
        return {
            type: 'ArrayExpression',
            elements,
            line: token.line
        };
    }
    parseObjectExpression() {
        const token = this.consume(Lexer_1.TokenType.LEFT_BRACE, 'Expected "{"');
        const properties = [];
        while (!this.check(Lexer_1.TokenType.RIGHT_BRACE) && !this.isAtEnd()) {
            const key = this.consume(Lexer_1.TokenType.IDENTIFIER, 'Expected property key').value;
            this.consume(Lexer_1.TokenType.COLON, 'Expected ":"');
            const value = this.parseExpression();
            properties.push({ key, value });
            if (!this.check(Lexer_1.TokenType.RIGHT_BRACE)) {
                this.consume(Lexer_1.TokenType.COMMA, 'Expected ","');
            }
        }
        this.consume(Lexer_1.TokenType.RIGHT_BRACE, 'Expected "}"');
        return {
            type: 'ObjectExpression',
            properties,
            line: token.line
        };
    }
    parseNewExpression() {
        const token = this.consume(Lexer_1.TokenType.NEW, 'Expected "new"');
        const callee = {
            type: 'Identifier',
            name: this.consume(Lexer_1.TokenType.IDENTIFIER, 'Expected identifier').value,
            line: token.line
        };
        this.consume(Lexer_1.TokenType.LEFT_PAREN, 'Expected "("');
        const args = [];
        while (!this.check(Lexer_1.TokenType.RIGHT_PAREN) && !this.isAtEnd()) {
            args.push(this.parseExpression());
            if (!this.check(Lexer_1.TokenType.RIGHT_PAREN)) {
                this.consume(Lexer_1.TokenType.COMMA, 'Expected ","');
            }
        }
        this.consume(Lexer_1.TokenType.RIGHT_PAREN, 'Expected ")"');
        return {
            type: 'NewExpression',
            callee,
            arguments: args,
            line: token.line
        };
    }
    parseArray() {
        this.consume(Lexer_1.TokenType.LEFT_BRACKET, 'Expected "["');
        const elements = [];
        while (!this.check(Lexer_1.TokenType.RIGHT_BRACKET) && !this.isAtEnd()) {
            if (this.check(Lexer_1.TokenType.IDENTIFIER)) {
                elements.push(this.advance().value);
            }
            else if (this.check(Lexer_1.TokenType.STRING)) {
                elements.push(this.advance().value);
            }
            if (!this.check(Lexer_1.TokenType.RIGHT_BRACKET)) {
                this.consume(Lexer_1.TokenType.COMMA, 'Expected ","');
            }
        }
        this.consume(Lexer_1.TokenType.RIGHT_BRACKET, 'Expected "]"');
        return elements;
    }
    // Helper methods
    check(type) {
        if (this.isAtEnd())
            return false;
        return this.peek().type === type;
    }
    advance() {
        if (!this.isAtEnd())
            this.current++;
        return this.previous();
    }
    isAtEnd() {
        return this.peek().type === Lexer_1.TokenType.EOF;
    }
    peek() {
        return this.tokens[this.current];
    }
    previous() {
        return this.tokens[this.current - 1];
    }
    consume(type, message) {
        if (this.check(type))
            return this.advance();
        const token = this.peek();
        throw new Error(`${message} at line ${token.line}, column ${token.column}. Got: ${token.value}`);
    }
}
exports.Parser = Parser;
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