import { Group, Meta, Transcript, TweetExtra } from "common-utils";
import { AbsoluteFill } from "remotion";
import { RenderUtils } from "../RenderUtils";

function formatTweetDate(date: Date) {
  const hours = date.getHours();
  const minutes = date.getMinutes();
  const ampm = hours >= 12 ? "PM" : "AM";
  const hour12 = hours % 12 === 0 ? 12 : hours % 12;
  const minStr = minutes.toString().padStart(2, "0");
  const months = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
  const month = months[date.getMonth()];
  const day = date.getDate();
  const year = date.getFullYear();
  return `${hour12}:${minStr} ${ampm} · ${month} ${day}, ${year}`;
}

export default function TweetPoster({
  transcript,
  meta,
}: {
  transcript: Transcript;
  meta: Meta;
}) {
  const textParts = transcript.audioCaption?.words;
  if (!textParts) {
    return (
      <AbsoluteFill color="#ffffff">
        <h1>
          <div>Empty tweet text!</div>
        </h1>
      </AbsoluteFill>
    );
  }

  const { width, height } = meta.resolution || { width: 1080, height: 1920 };

  // Scale solely from WIDTH (as requested)
  const W = Math.max(320, width); // guard for tiny canvases

  // Outer padding around the card (kept modest so card fills width but not flush)
  const outerPad = Math.max(Math.round(W * 0.04), 16); // 4% of width, min 16px

  // Card internal padding
  const boxPad = Math.max(Math.round(W * 0.03), 14); // 3% of width, min 14px

  // Avatar + typography strictly from width
  const avatarSize = Math.max(Math.round(W * 0.08), 56); // 8% of width
  const fontNamePx = Math.round(W * 0.035);      // display name
  const fontUserPx = Math.round(W * 0.028);      // @username
  const fontMainPx = Math.round(W * 0.042);      // tweet text
  const fontDatePx = Math.round(W * 0.026);      // footer date

  // Reasonable clamps to avoid extremes on very large/small canvases
  const clamp = (v: number, min: number, max: number) => Math.min(max, Math.max(min, v));
  const fontName = `${clamp(fontNamePx, 16, 40)}px`;
  const fontUsername = `${clamp(fontUserPx, 14, 32)}px`;
  const fontMain = `${clamp(fontMainPx, 18, 48)}px`;
  const fontDate = `${clamp(fontDatePx, 12, 28)}px`;

  let bgColor = (transcript.extras as TweetExtra)?.textBgColor || "#ffffff";
  const fullName = textParts[0]?.word;
  const fullNameStyle = textParts[0]?.textStyle;
  const username = textParts[1]?.word;
  const usernameStyle = textParts[1]?.textStyle;
  const tweetLine1 = textParts[2]?.word;
  const tweetLine1Style = textParts[2]?.textStyle;
  const tweetLine2 = textParts[3]?.word;
  const tweetLine2Style = textParts[3]?.textStyle;
  const avatar = RenderUtils.tryStaticFile(transcript.mediaAbsPaths?.[0]?.path);

  return (
    <AbsoluteFill
      style={{
        background: bgColor,
        display: "flex",
        alignItems: "center",
        justifyContent: "center",
        width: "100%",
        height: "100%",
        boxSizing: "border-box",
        padding: 0,
      }}
    >
      {/* Outer pad keeps some breathing room; box fills remaining width */}
      <div
        style={{
          width: "100%",
          height: "100%",
          display: "flex",
          alignItems: "center",
          justifyContent: "center",
          boxSizing: "border-box",
          padding: outerPad,
        }}
      >
        {/* Tweet box now fully fits parent width with the outerPad margin */}
        <div
          style={{
            width: "100%",
            // height is auto so small/large content won't crop;
            // allow it to grow and just keep nice rounding/shadow
            background: "#fff",
            border: "1px solid #e1e8ed",
            borderRadius: Math.max(Math.round(W * 0.02), 16),
            boxShadow: `0 ${Math.round(W * 0.04)}px ${Math.round(
              W * 0.08
            )}px rgba(0,0,0,0.10)`,
            padding: `${boxPad}px ${Math.round(boxPad * 1.2)}px`,
            fontFamily: "Segoe UI, Arial, sans-serif",
            boxSizing: "border-box",
            display: "flex",
            flexDirection: "column",
            justifyContent: "flex-start",

            // Prevent cropping: let content define height; wrap long words
            overflow: "visible",
            wordBreak: "break-word",
          }}
        >
          {/* Header */}
          <div
            style={{
              display: "flex",
              alignItems: "center",
              marginBottom: boxPad,
              minWidth: 0,
            }}
          >
            <img
              src={avatar}
              alt="avatar"
              style={{
                width: avatarSize,
                height: avatarSize,
                minWidth: 40,
                minHeight: 40,
                borderRadius: "50%",
                marginRight: boxPad,
                border: "2px solid #e1e8ed",
                objectFit: "cover",
                flexShrink: 0,
              }}
            />
            <div style={{ minWidth: 0 }}>
              <div
                style={{
                  fontWeight: 700,
                  fontSize: fontName,
                  lineHeight: 1.15,
                  whiteSpace: "pre-wrap",
                  ...fullNameStyle,
                }}
              >
                {fullName}
              </div>
              <div
                style={{
                  color: "#657786",
                  fontSize: fontUsername,
                  lineHeight: 1.15,
                  whiteSpace: "pre-wrap",
                  ...usernameStyle,
                }}
              >
                {username}
              </div>
            </div>
          </div>

          {/* Tweet text */}
          <div
            style={{
              fontSize: fontMain,
              lineHeight: 1.45,
              marginBottom: boxPad,
              whiteSpace: "pre-wrap",
            }}
          >
            <span style={tweetLine1Style}>{tweetLine1}</span>
            {tweetLine2 && (
              <>
                {"\n"}
                <span style={tweetLine2Style}>{tweetLine2}</span>
              </>
            )}
          </div>

          {/* Footer */}
          <div
            style={{
              color: "#657786",
              fontSize: fontDate,
              marginTop: Math.round(boxPad * 0.5),
              display: "flex",
              gap: Math.round(W * 0.01),
              alignItems: "baseline",
              flexWrap: "wrap",
            }}
          >
            <span>{formatTweetDate(new Date())}</span>
            <span>·</span>
            <span style={{ color: "#1da1f2" }}>Follow</span>
          </div>
        </div>
      </div>
    </AbsoluteFill>
  );
}