{{define "content" -}}
{{with .Data}}
<p class="note"><a href="/_gm/banners">← all campaigns</a></p>
<h1>{{.Name}}{{if .IsDefault}} <span class="pill">default</span>{{end}}</h1>
<section class="panel"><h2>Settings</h2>
{{if .IsDefault}}<p class="note">The default campaign is perpetual and fills the unsold remainder — only its name and messages are editable.</p>{{end}}
<form class="form col" method="post" action="/_gm/banners/{{.ID}}">
<label>Name <input type="text" name="name" value="{{.Name}}" maxlength="80" required></label>
{{if not .IsDefault}}
<label>Weight (%) <input type="number" name="weight" min="1" max="100" value="{{.Weight}}" required></label>
<label>Starts (UTC) <input type="datetime-local" name="starts_at" value="{{.StartsAt}}"></label>
<label>Ends (UTC) <input type="datetime-local" name="ends_at" value="{{.EndsAt}}"></label>
<label><input type="checkbox" name="enabled"{{if .Enabled}} checked{{end}}> Enabled</label>
<fieldset class="ovr">
<legend><label><input type="checkbox" name="urgent"{{if .Urgent}} checked{{end}}> Urgent</label></legend>
<p class="note">Shows to <em>everyone</em>, always — bypassing paid accounts, hint wallets and the no-banner role. While any urgent campaign is live it is the only thing the strip shows (other campaigns and the default are suppressed). For system alerts.</p>
</fieldset>
<fieldset class="ovr" data-ovr-group>
<legend><label><input type="checkbox" name="override_all_on" data-ovr="all"{{if .OverrideAllOn}} checked{{end}}> Colour override — all themes</label></legend>
<div class="swatches">
<label>Background <input type="color" name="override_bg" value="{{.AllBg}}" data-ovr-color{{if not .OverrideAllOn}} disabled{{end}}><span class="hex"></span></label>
<label>Text <input type="color" name="override_fg" value="{{.AllFg}}" data-ovr-color{{if not .OverrideAllOn}} disabled{{end}}><span class="hex"></span></label>
<label>Link <input type="color" name="override_link" value="{{.AllLink}}" data-ovr-color{{if not .OverrideAllOn}} disabled{{end}}><span class="hex"></span></label>
</div>
</fieldset>
<fieldset class="ovr" data-ovr-group>
<legend><label><input type="checkbox" name="override_dark_on" data-ovr="dark"{{if .OverrideDarkOn}} checked{{end}}> Colour override — dark theme only</label></legend>
<div class="swatches">
<label>Background <input type="color" name="override_bg_dark" value="{{.DarkBg}}" data-ovr-color{{if not .OverrideDarkOn}} disabled{{end}}><span class="hex"></span></label>
<label>Text <input type="color" name="override_fg_dark" value="{{.DarkFg}}" data-ovr-color{{if not .OverrideDarkOn}} disabled{{end}}><span class="hex"></span></label>
<label>Link <input type="color" name="override_link_dark" value="{{.DarkLink}}" data-ovr-color{{if not .OverrideDarkOn}} disabled{{end}}><span class="hex"></span></label>
</div>
</fieldset>
{{end}}
<div><button type="submit">Save</button></div>
</form>
{{if not .IsDefault}}
<div class="banner-preview">
<div class="bp"><span class="bp-label">Light theme</span><div class="ad-frame light"><div class="ad-sample" id="prev-light"><span>Sample banner text — <span class="ad-link">a link</span></span></div></div></div>
<div class="bp"><span class="bp-label">Dark theme</span><div class="ad-frame dark"><div class="ad-sample" id="prev-dark"><span>Sample banner text — <span class="ad-link">a link</span></span></div></div></div>
</div>
<p class="note">Live preview of the strip on both themes. An empty override falls back to the neutral theme colours; the top/bottom border is derived from the background.</p>
<script>
(function(){
  // Neutral fallbacks — mirror ui/src/app.css (--ad-bg / --text-muted / --accent).
  var TOK={light:{bg:'#e3e7ee',fg:'#6b7280',link:'#2f6df6'},dark:{bg:'#272f3c',fg:'#9aa3b2',link:'#5b8cff'}};
  function byName(n){return document.querySelector('[name="'+n+'"]');}
  var allOn=byName('override_all_on'), darkOn=byName('override_dark_on');
  if(!allOn||!darkOn){return;}
  var f={ab:byName('override_bg'),af:byName('override_fg'),al:byName('override_link'),db:byName('override_bg_dark'),df:byName('override_fg_dark'),dl:byName('override_link_dark')};
  var lightEl=document.getElementById('prev-light'), darkEl=document.getElementById('prev-dark');
  function hexToRgb(h){h=h.replace('#','');return [parseInt(h.slice(0,2),16),parseInt(h.slice(2,4),16),parseInt(h.slice(4,6),16)];}
  function pad(x){x=Math.max(0,Math.min(255,Math.round(x))).toString(16);return x.length<2?'0'+x:x;}
  function rgbToHex(r){return '#'+pad(r[0])+pad(r[1])+pad(r[2]);}
  function mix(a,b,t){return [a[0]+(b[0]-a[0])*t,a[1]+(b[1]-a[1])*t,a[2]+(b[2]-a[2])*t];}
  function lum(r){return (0.2126*r[0]+0.7152*r[1]+0.0722*r[2])/255;}
  // Derived border: nudge the background 14% toward black on a light bg, toward white on a dark bg.
  function border(bg){var r=hexToRgb(bg);return rgbToHex(mix(r, lum(r)>0.5?[0,0,0]:[255,255,255], 0.14));}
  function paint(el,c){
    el.style.background=c.bg; el.style.color=c.fg;
    el.style.borderTop='1px solid '+border(c.bg); el.style.borderBottom='1px solid '+border(c.bg);
    var a=el.querySelector('.ad-link'); if(a){a.style.color=c.link;}
  }
  function resolve(){
    var light=allOn.checked?{bg:f.ab.value,fg:f.af.value,link:f.al.value}:TOK.light;
    var dark=darkOn.checked?{bg:f.db.value,fg:f.df.value,link:f.dl.value}
            :(allOn.checked?{bg:f.ab.value,fg:f.af.value,link:f.al.value}:TOK.dark);
    paint(lightEl,light); paint(darkEl,dark);
    document.querySelectorAll('.ovr .swatches label').forEach(function(lab){
      var inp=lab.querySelector('input[type=color]'), hx=lab.querySelector('.hex');
      if(inp&&hx){hx.textContent=inp.value;}
    });
  }
  function toggleGroup(chk){chk.closest('fieldset').querySelectorAll('[data-ovr-color]').forEach(function(inp){inp.disabled=!chk.checked;});}
  [allOn,darkOn].forEach(function(chk){chk.addEventListener('change',function(){toggleGroup(chk);resolve();});});
  Object.keys(f).forEach(function(k){f[k].addEventListener('input',resolve);});
  resolve();
})();
</script>
<form class="form" method="post" action="/_gm/banners/{{.ID}}/delete" onsubmit="return confirm('Delete this campaign and its messages?')">
<button type="submit" class="danger">Delete campaign</button>
</form>
{{end}}
</section>
<section class="panel"><h2>Messages</h2>
<div class="help-top">
<p class="note">Each message must be filled in both languages; the viewer sees the variant for the bot they play through. The messages of a campaign share its show weight, rotating in this order.</p>
<aside class="help">
<h4>Formatting</h4>
<p>Plain text is shown as-is (any HTML is escaped).</p>
<p>Add a link with markdown — <code>[visible text](https://example.com)</code> — which renders as the linked <em>visible text</em>.</p>
<p>Only <code>https://</code>, <code>http://</code> and root-relative <code>/path</code> targets become links; any other scheme (e.g. <code>javascript:</code>, <code>ftp:</code>) is dropped and shown as plain text.</p>
<p>Keep it short: an over-long line scrolls in the strip; the same formatting applies when editing a message above.</p>
</aside>
</div>
{{range .Messages}}
<div class="row">
<form class="form col" method="post" action="/_gm/banners/{{$.Data.ID}}/messages/{{.ID}}">
<label>English <textarea name="body_en" rows="3" maxlength="500" required>{{.BodyEn}}</textarea></label>
<label>Russian <textarea name="body_ru" rows="3" maxlength="500" required>{{.BodyRu}}</textarea></label>
<div class="actions">
<button type="submit">Save</button>
</div>
</form>
<div class="actions">
<form class="form" method="post" action="/_gm/banners/{{$.Data.ID}}/messages/{{.ID}}/move"><input type="hidden" name="dir" value="up"><button type="submit"{{if .First}} disabled{{end}}>↑</button></form>
<form class="form" method="post" action="/_gm/banners/{{$.Data.ID}}/messages/{{.ID}}/move"><input type="hidden" name="dir" value="down"><button type="submit"{{if .Last}} disabled{{end}}>↓</button></form>
<form class="form" method="post" action="/_gm/banners/{{$.Data.ID}}/messages/{{.ID}}/delete" onsubmit="return confirm('Delete this message?')"><button type="submit" class="danger">Delete</button></form>
</div>
</div>
{{else}}<p class="note">no messages yet</p>{{end}}
<h3>Add message</h3>
<form class="form col" method="post" action="/_gm/banners/{{.ID}}/messages">
<label>English <textarea name="body_en" rows="3" maxlength="500" required></textarea></label>
<label>Russian <textarea name="body_ru" rows="3" maxlength="500" required></textarea></label>
<div><button type="submit">Add message</button></div>
</form>
</section>
{{end}}
{{- end}}