//! Minimal PDF example - Hello World

const std = @import("std");
const pdf = @import("zcatpdf");

pub fn main() !void {
    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
    defer _ = gpa.deinit();
    const allocator = gpa.allocator();

    std.debug.print("zcatpdf - Hello World example\n", .{});

    // Create document
    var doc = pdf.Document.init(allocator);
    defer doc.deinit();

    // Add a page
    var page = try doc.addPage(.a4);

    // Title
    try page.setFont(.helvetica_bold, 36);
    page.setFillColor(pdf.Color.rgb(0, 100, 200));
    try page.drawText(50, 750, "Hello, PDF!");

    // Subtitle
    try page.setFont(.helvetica, 14);
    page.setFillColor(pdf.Color.medium_gray);
    try page.drawText(50, 710, "Generated with zcatpdf - Pure Zig PDF library");

    // Draw a line
    try page.setLineWidth(1);
    page.setStrokeColor(pdf.Color.light_gray);
    try page.drawLine(50, 700, 545, 700);

    // Body text
    try page.setFont(.times_roman, 12);
    page.setFillColor(pdf.Color.black);
    try page.drawText(50, 670, "This PDF was generated entirely in Zig with zero external dependencies.");
    try page.drawText(50, 655, "The zcatpdf library supports:");
    try page.drawText(70, 635, "- Multiple fonts (Helvetica, Times, Courier)");
    try page.drawText(70, 620, "- Colors (RGB)");
    try page.drawText(70, 605, "- Lines and rectangles");
    try page.drawText(70, 590, "- Multiple pages");

    // Draw some shapes
    try page.setLineWidth(2);
    page.setStrokeColor(pdf.Color.blue);
    page.setFillColor(pdf.Color.rgb(230, 240, 255));
    try page.drawFilledRect(50, 500, 200, 60);

    try page.setFont(.helvetica_bold, 14);
    page.setFillColor(pdf.Color.blue);
    try page.drawText(60, 540, "Shapes work too!");

    // Red rectangle
    page.setStrokeColor(pdf.Color.red);
    page.setFillColor(pdf.Color.rgb(255, 230, 230));
    try page.drawFilledRect(280, 500, 200, 60);

    page.setFillColor(pdf.Color.red);
    try page.drawText(290, 540, "Multiple colors!");

    // Footer
    try page.setFont(.courier, 10);
    page.setFillColor(pdf.Color.medium_gray);
    try page.drawText(50, 50, "zcatpdf v0.1.0 - https://git.reugenio.com/reugenio/zcatpdf");

    // Save
    const filename = "hello.pdf";
    try doc.saveToFile(filename);

    std.debug.print("Created: {s}\n", .{filename});
    std.debug.print("Done!\n", .{});
}