import { readFileSync, writeFileSync } from 'fs';
/**
 * Matches an empty `[autoload]` section (the header followed by only blank
 * lines, up to the next section header or end-of-file). Used by cleanup paths
 * to drop the section after the last entry is removed.
 */
export const EMPTY_AUTOLOAD_SECTION_REGEX = /\[autoload\]\s*(?=\n\[|\n*$)/g;
/**
 * Mirrors the parser's `\w+` assumption (parseAutoloads / removeAutoloadEntry).
 * Enforced on write paths to prevent a name with newlines or INI section
 * delimiters from corrupting project.godot.
 */
export const VALID_AUTOLOAD_NAME_REGEX = /^\w+$/;
function assertValidName(name) {
    if (!VALID_AUTOLOAD_NAME_REGEX.test(name)) {
        throw new Error(`Invalid autoload name '${name}': must contain only word characters (letters, digits, underscore)`);
    }
}
export function normalizeAutoloadPath(p) {
    return p.startsWith('res://') ? p : `res://${p}`;
}
export function parseAutoloads(projectFilePath, existingContent) {
    const content = existingContent ?? readFileSync(projectFilePath, 'utf8');
    const autoloads = [];
    let inAutoloadSection = false;
    for (const line of content.split('\n')) {
        const trimmed = line.trim();
        if (trimmed.startsWith('[')) {
            inAutoloadSection = trimmed === '[autoload]';
            continue;
        }
        if (!inAutoloadSection || trimmed === '' || trimmed.startsWith(';') || trimmed.startsWith('#'))
            continue;
        // The surrounding `"?` are intentional: Godot always writes quotes, but
        // hand-edited project.godot files sometimes omit them. Tolerating both
        // shapes means a missing quote pair doesn't silently drop the entry.
        const match = trimmed.match(/^(\w+)="?(\*?)([^"]*?)"?$/);
        if (match) {
            autoloads.push({ name: match[1], singleton: match[2] === '*', path: match[3] });
        }
    }
    return autoloads;
}
export function addAutoloadEntry(projectFilePath, name, path, singleton, existingContent) {
    assertValidName(name);
    const content = existingContent ?? readFileSync(projectFilePath, 'utf8');
    const lines = content.split('\n');
    const entry = `${name}="${singleton ? '*' : ''}${normalizeAutoloadPath(path)}"`;
    const sectionIdx = lines.findIndex((l) => l.trim() === '[autoload]');
    if (sectionIdx === -1) {
        writeFileSync(projectFilePath, content.trimEnd() + '\n\n[autoload]\n' + entry + '\n', 'utf8');
        return;
    }
    let insertIdx = sectionIdx + 1;
    while (insertIdx < lines.length && !lines[insertIdx].trim().startsWith('[')) {
        insertIdx++;
    }
    lines.splice(insertIdx, 0, entry);
    writeFileSync(projectFilePath, lines.join('\n'), 'utf8');
}
/**
 * Remove the named autoload entry. Also drops the `[autoload]` section header
 * if the removed entry was the last one in it. Returns true when the file was
 * mutated.
 */
export function removeAutoloadEntry(projectFilePath, name) {
    const content = readFileSync(projectFilePath, 'utf8');
    const lines = content.split('\n');
    let inAutoloadSection = false;
    let removed = false;
    const filtered = lines.filter((line) => {
        const trimmed = line.trim();
        if (trimmed.startsWith('[')) {
            inAutoloadSection = trimmed === '[autoload]';
            return true;
        }
        if (inAutoloadSection) {
            const match = trimmed.match(/^(\w+)=/);
            if (match && match[1] === name) {
                removed = true;
                return false;
            }
        }
        return true;
    });
    if (!removed)
        return false;
    let newContent = filtered.join('\n');
    newContent = newContent.replace(EMPTY_AUTOLOAD_SECTION_REGEX, '');
    newContent = newContent.trimEnd() + '\n';
    writeFileSync(projectFilePath, newContent, 'utf8');
    return true;
}
export function updateAutoloadEntry(projectFilePath, name, newPath, singleton) {
    assertValidName(name);
    const content = readFileSync(projectFilePath, 'utf8');
    const lines = content.split('\n');
    let inAutoloadSection = false;
    let updated = false;
    const newLines = lines.map((line) => {
        const trimmed = line.trim();
        if (trimmed.startsWith('[')) {
            inAutoloadSection = trimmed === '[autoload]';
            return line;
        }
        if (inAutoloadSection) {
            // The surrounding `"?` are intentional: Godot always writes quotes, but
            // hand-edited project.godot files sometimes omit them. Tolerating both
            // shapes means a missing quote pair doesn't silently drop the entry.
            const match = trimmed.match(/^(\w+)="?(\*?)([^"]*?)"?$/);
            if (match && match[1] === name) {
                const effectiveSingleton = singleton !== undefined ? singleton : match[2] === '*';
                const effectivePath = newPath !== undefined ? normalizeAutoloadPath(newPath) : match[3];
                updated = true;
                return `${name}="${effectiveSingleton ? '*' : ''}${effectivePath}"`;
            }
        }
        return line;
    });
    if (updated)
        writeFileSync(projectFilePath, newLines.join('\n'), 'utf8');
    return updated;
}
//# sourceMappingURL=autoload-ini.js.map