#let theme = (
  bg-color: rgb("#fdf6e3"),
  fg-color: rgb("#073642"),
  accent-color: rgb("#268bd2"),
  border-color: rgb("#073642"),
  heading-font: "Atkinson Hyperlegible",
  body-font: "DejaVu Sans",
  border-radius: 0.8cm,
  border-stroke: 4pt,
  title-size: 20pt,
  label-size: 12pt,
  body-size: 12pt,
  info-text-size: 12pt,
)

// Default logo configuration
#let default-logo = (
  path: none,
  height: 4cm,
  fit: "contain",
  rotation: 0deg,
  offset: (x: 0cm, y: 0cm),
  pin-position: none, // "top-left", "top-center", "top-right", etc.
)

// Konfiguriert die Logos
#let configure-logo(logo-config) = {
  if logo-config == none {
    return default-logo
  }
  if type(logo-config) == str {
    // String = nur Pfad
    return default-logo + (path: logo-config)
  }
  return default-logo + logo-config
}

// Hilfsfunktion um ein einzelnes Logo zu positionieren
#let place-logo(logo, position, dx: 0cm, dy: 0cm) = {
  let logo = configure-logo(logo)
  if logo.path == none { return }

  place(position, dx: logo.offset.x + dx, dy: logo.offset.y + dy)[
    #rotate(logo.rotation)[
      #image(logo.path, height: logo.height, fit: logo.fit)
    ]
  ]
}

// Positioniert mehrere Logos basierend auf Layout und Anzahl
#let position-logos(logos, layout: "horizontal") = {
  let logos = if type(logos) == array {
    logos.map(configure-logo)
  } else if type(logos) == dictionary {
    (configure-logo(logos),)
  } else {
    ()
  }

  if layout == "horizontal" {
    // Logos nebeneinander oben
    if logos.len() == 1 {
      place-logo(logos.first(), top + center)
    } else if logos.len() == 2 {
      place-logo(logos.at(0), top + left, dx: 1.5cm, dy: 0.7cm)
      place-logo(logos.at(1), top + right, dx: -1.5cm, dy: 0.7cm)
    } else if logos.len() == 3 {
      place-logo(logos.at(0), top + left, dx: 1.5cm, dy: 0.7cm)
      place-logo(logos.at(1), top + center, dy: 0.7cm)
      place-logo(logos.at(2), top + right, dx: -1.5cm, dy: 0.7cm)
    } else {
      // 4+ logos - anordnen in Gitter
      let cols = calc.min(2, logos.len())
      let rows = calc.ceil(logos.len() / cols)
      for (i, logo) in logos.enumerate() {
        let row = calc.floor(i / cols)
        let col = calc.rem(i, cols)
        let x = -2.5cm + col * 5cm
        let y = 0.5cm + row * 2.2cm
        place-logo(logo, top + left, dx: x, dy: y)
      }
    }
  } else if layout == "vertical" {
    // Logos auf der rechten Seite positioniert, vertikal gestapelt
    if logos.len() == 1 {
      place-logo(logos.first(), top + right, dx: -1cm, dy: 0.7cm)
    } else if logos.len() == 2 {
      place-logo(logos.at(0), top + right, dx: -1cm, dy: 0.7cm)
      place-logo(logos.at(1), top + right, dx: -1cm, dy: 4.2cm)
    } else {
      // 3+ logos: vertikal auf der rechten Seite mit leichtem Offset gestapelt
      for (i, logo) in logos.enumerate() {
        let dy = 0.7cm + i * 3.5cm
        place-logo(logo, top + right, dx: -1cm, dy: dy)
      }
    }
  }
}

// Hilfsfunktion um den Inhalt zu arrangieren
#let arrange-content(title: [], when: [], where: [], about: [], layout: "horizontal", current-theme: theme) = {
  let left-padding = if layout == "vertical" { 1.5cm } else { 1.5cm }
  let right-padding = if layout == "vertical" { 5cm } else { 1.5cm }
  let top-padding = if layout == "vertical" { 0.8cm } else { 5.5cm }
  
  pad(top: top-padding, bottom: 1.5cm, left: left-padding, right: right-padding)[
    #stack(
      dir: ttb,
      spacing: 1em,
      // Title
      if title != [] {
        text(size: current-theme.title-size, weight: "bold", font: current-theme.heading-font, title)
      },

      // Info-Block für wann/wo
      if when != [] or where != [] {
        block(
          inset: 0.8em,
          radius: 0.4em,
          width: 100%,
          fill: current-theme.bg-color.mix(current-theme.accent-color).darken(10%),
          stack(
            dir: ttb,
            spacing: 0.4em,
            if when != [] {
              align(center + horizon, stack(
                dir: ltr,
                spacing: 0.5em,
                align(center + horizon, emoji.calendar),
                text(size: current-theme.info-text-size, when),
              ))
            },
            if where != [] {
              align(center + horizon, stack(
                dir: ltr,
                spacing: 0.5em,
                align(center + horizon, emoji.pin),
                text(size: current-theme.info-text-size, where),
              ))
            },
          ),
        )
      },

      // Beschreibungstext
      if about != [] {
        let about-align = if layout == "vertical" { left } else { center }
        block(
          spacing: 0.1em,
          align(about-align, text(size: current-theme.body-size, about))
        )
      }
    )
  ]
}

// Haupt-Vorlage-Funktion
#let sharepic(
  logos: (),
  layout: "horizontal",
  title: [],
  when: [],
  where: [],
  about: [],
  theme-override: (:)
) = {
  // Überschreiben der Theme
  let current-theme = theme + theme-override

  set page(
    width: 15cm,
    height: 15cm,
    fill: current-theme.bg-color,
    margin: 0cm,
  )
  set text(
    font: current-theme.body-font,
    size: 15pt,
    fill: current-theme.fg-color,
  )

  align(center + horizon)[
    #rect(
      width: 14cm,
      height: 14cm,
      radius: current-theme.border-radius,
      stroke: current-theme.border-stroke + current-theme.border-color,
    )[
      // Positioniert Logos basierend auf Layout
      #{position-logos(logos, layout: layout)}

      // Inhaltsbereich
      #{arrange-content(
        title: title,
        when: when,
        where: where,
        about: about,
        layout: layout,
        current-theme: current-theme
      )}
    ]
  ]
}

// Verwendungsbeispiele und Dokumentation
/*
#sharepic(
  logos: (
    (path: "logo1.png", height: 4cm),
    (path: "connection.png", height: 4cm, rotation: -8deg),
    (path: "kew.jpg", height: 4cm, rotation: 8deg)
  ),
  layout: "horizontal",
  title: [Beispiel-Event],
  when: [22.10.2025, 17:00 Uhr],
  where: [Ort Hier],
  about: [Beschreibung des Events...]
)

#sharepic(
  logos: (
    (path: "logo1.png", height: 3cm),
    (path: "logo2.png", height: 3cm),
    (path: "logo3.png", height: 3cm),
    (path: "logo4.png", height: 3cm)
  ),
  layout: "vertical",
  title: [Beispiel-Event],
  about: [Beschreibung des Events...]
)

// Einfache Verwendung mit String-Logos
#sharepic(
  logos: ("connection.png", "kew.jpg"),
  layout: "horizontal",
  title: [Beispiel-Event]
)
*/