import { html } from "lit";
import { unsafeHTML } from "lit/directives/unsafe-html.js";
import { customElement, property } from "lit/decorators.js";
import {
  ToolCall,
  MultipleChoiceOption,
  MultipleChoiceParams,
  State,
} from "../types";
import { marked } from "marked";
import DOMPurify from "dompurify";
import { SketchTailwindElement } from "./sketch-tailwind-element";
import "./sketch-tool-card-base";

// Shared utility function for markdown rendering with DOMPurify sanitization
function renderMarkdown(markdownContent: string): string {
  try {
    // Parse markdown with default settings
    const htmlOutput = marked.parse(markdownContent, {
      gfm: true,
      breaks: true,
      async: false,
    }) as string;

    // Sanitize the output HTML with DOMPurify
    return DOMPurify.sanitize(htmlOutput, {
      // Allow common safe HTML elements
      ALLOWED_TAGS: [
        "p",
        "br",
        "strong",
        "em",
        "b",
        "i",
        "u",
        "s",
        "code",
        "pre",
        "h1",
        "h2",
        "h3",
        "h4",
        "h5",
        "h6",
        "ul",
        "ol",
        "li",
        "blockquote",
        "a",
      ],
      ALLOWED_ATTR: [
        "href",
        "title",
        "target",
        "rel", // For links
        "class", // For basic styling
      ],
      // Keep content formatting
      KEEP_CONTENT: true,
    });
  } catch (error) {
    console.error("Error rendering markdown:", error);
    // Fallback to sanitized plain text if markdown parsing fails
    return DOMPurify.sanitize(markdownContent);
  }
}

// Shared utility function for creating Tailwind pre elements
function createPreElement(content: string, additionalClasses: string = "") {
  return html`<pre
    class="bg-gray-200 text-black p-2 rounded whitespace-pre-wrap break-words max-w-full w-full box-border overflow-wrap-break-word ${additionalClasses}"
  >
${content}</pre
  >`;
}

@customElement("sketch-tool-card-bash")
export class SketchToolCardBash extends SketchTailwindElement {
  @property() toolCall: ToolCall;
  @property() open: boolean;

  render() {
    const inputData = JSON.parse(this.toolCall?.input || "{}");
    const isBackground = inputData?.background === true;
    const isSlowOk = inputData?.slow_ok === true;
    const backgroundIcon = isBackground
      ? html`<span title="Running in background">🥷</span> `
      : "";
    const slowIcon = isSlowOk
      ? html`<span title="Extended timeouts">🐢</span> `
      : "";

    // Truncate the command if it's too long to display nicely
    const command = inputData?.command || "";
    const displayCommand =
      command.length > 80 ? command.substring(0, 80) + "..." : command;

    const summaryContent = html`<div
      class="max-w-full overflow-hidden text-ellipsis whitespace-nowrap"
    >
      ${backgroundIcon}${slowIcon}${displayCommand}
    </div>`;

    const inputContent = html`<div
      class="flex w-full max-w-full flex-col overflow-wrap-break-word break-words"
    >
      <div class="w-full relative">
        <pre
          class="bg-gray-200 text-black p-2 rounded whitespace-pre-wrap break-words max-w-full w-full box-border overflow-wrap-break-word w-full mb-0 rounded-t rounded-b-none box-border"
        >
${backgroundIcon}${slowIcon}${inputData?.command}</pre
        >
      </div>
    </div>`;

    const resultContent = this.toolCall?.result_message?.tool_result
      ? html`<div class="w-full relative">
          ${createPreElement(
            this.toolCall.result_message.tool_result,
            "mt-0 text-gray-600 rounded-t-none rounded-b w-full box-border max-h-[300px] overflow-y-auto",
          )}
        </div>`
      : "";

    return html`<sketch-tool-card-base
      .open=${this.open}
      .toolCall=${this.toolCall}
      .summaryContent=${summaryContent}
      .inputContent=${inputContent}
      .resultContent=${resultContent}
    ></sketch-tool-card-base>`;
  }
}

@customElement("sketch-tool-card-codereview")
export class SketchToolCardCodeReview extends SketchTailwindElement {
  @property() toolCall: ToolCall;
  @property() open: boolean;

  // Determine the status icon based on the content of the result message
  getStatusIcon(resultText: string): string {
    if (!resultText) return "";
    if (resultText === "OK") return "✔️";
    if (resultText.includes("# Errors")) return "⚠️";
    if (resultText.includes("# Info")) return "ℹ️";
    if (resultText.includes("uncommitted changes in repo")) return "🧹";
    if (resultText.includes("no new commits have been added")) return "🐣";
    if (resultText.includes("git repo is not clean")) return "🧼";
    return "❓";
  }

  render() {
    const resultText = this.toolCall?.result_message?.tool_result || "";
    const statusIcon = this.getStatusIcon(resultText);

    const summaryContent = html`<span>${statusIcon}</span>`;
    const resultContent = resultText ? createPreElement(resultText) : "";

    return html`<sketch-tool-card-base
      .open=${this.open}
      .toolCall=${this.toolCall}
      .summaryContent=${summaryContent}
      .resultContent=${resultContent}
    ></sketch-tool-card-base>`;
  }
}

@customElement("sketch-tool-card-done")
export class SketchToolCardDone extends SketchTailwindElement {
  @property() toolCall: ToolCall;
  @property() open: boolean;

  render() {
    const doneInput = JSON.parse(this.toolCall.input);

    const summaryContent = html`<span></span>`;

    const resultContent = html`<div>
      ${Object.keys(doneInput.checklist_items).map((key) => {
        const item = doneInput.checklist_items[key];
        let statusIcon = "〰️";
        if (item.status == "yes") {
          statusIcon = "✅";
        } else if (item.status == "not applicable") {
          statusIcon = "🤷";
        }
        return html`<div class="mb-1">
          <span>${statusIcon}</span> ${key}:${item.status}
        </div>`;
      })}
    </div>`;

    return html`<sketch-tool-card-base
      .open=${this.open}
      .toolCall=${this.toolCall}
      .summaryContent=${summaryContent}
      .resultContent=${resultContent}
    ></sketch-tool-card-base>`;
  }
}

@customElement("sketch-tool-card-patch")
export class SketchToolCardPatch extends SketchTailwindElement {
  @property() toolCall: ToolCall;
  @property() open: boolean;

  render() {
    const patchInput = JSON.parse(this.toolCall?.input);

    const summaryContent = html`<span
      class="text-gray-600 font-mono overflow-hidden text-ellipsis whitespace-nowrap rounded"
    >
      ${patchInput?.path}: ${patchInput.patches.length}
      edit${patchInput.patches.length > 1 ? "s" : ""}
    </span>`;

    const inputContent = html`<div>
      ${patchInput.patches.map((patch) => {
        return html`<div class="mb-2">
          Patch operation: <b>${patch.operation}</b>
          ${createPreElement(patch.newText)}
        </div>`;
      })}
    </div>`;

    const resultContent = this.toolCall?.result_message?.tool_result
      ? createPreElement(this.toolCall.result_message.tool_result)
      : "";

    return html`<sketch-tool-card-base
      .open=${this.open}
      .toolCall=${this.toolCall}
      .summaryContent=${summaryContent}
      .inputContent=${inputContent}
      .resultContent=${resultContent}
    ></sketch-tool-card-base>`;
  }
}

@customElement("sketch-tool-card-think")
export class SketchToolCardThink extends SketchTailwindElement {
  @property() toolCall: ToolCall;
  @property() open: boolean;

  render() {
    const thoughts = JSON.parse(this.toolCall?.input)?.thoughts || "";

    const summaryContent = html`<span
      class="overflow-hidden text-ellipsis font-mono"
    >
      ${thoughts.split("\n")[0]}
    </span>`;

    const inputContent = html`<div
      class="overflow-x-auto mb-1 font-mono px-2 py-1 bg-gray-200 rounded select-text cursor-text text-sm leading-relaxed"
    >
      <div class="markdown-content">
        ${unsafeHTML(renderMarkdown(thoughts))}
      </div>
    </div>`;

    return html`<sketch-tool-card-base
      .open=${this.open}
      .toolCall=${this.toolCall}
      .summaryContent=${summaryContent}
      .inputContent=${inputContent}
    ></sketch-tool-card-base>`;
  }
}

@customElement("sketch-tool-card-set-slug")
export class SketchToolCardSetSlug extends SketchTailwindElement {
  @property() toolCall: ToolCall;
  @property() open: boolean;

  render() {
    const inputData = JSON.parse(this.toolCall?.input || "{}");

    const summaryContent = html`<span class="italic">
      Slug: "${inputData.slug}"
    </span>`;

    const inputContent = html`<div>Set slug to: <b>${inputData.slug}</b></div>`;

    return html`<sketch-tool-card-base
      .open=${this.open}
      .toolCall=${this.toolCall}
      .summaryContent=${summaryContent}
      .inputContent=${inputContent}
    ></sketch-tool-card-base>`;
  }
}

@customElement("sketch-tool-card-commit-message-style")
export class SketchToolCardCommitMessageStyle extends SketchTailwindElement {
  @property()
  toolCall: ToolCall;

  @property()
  open: boolean;

  @property()
  state: State;

  constructor() {
    super();
  }

  connectedCallback() {
    super.connectedCallback();
  }

  disconnectedCallback() {
    super.disconnectedCallback();
  }

  render() {
    return html`<sketch-tool-card-base
      .open=${this.open}
      .toolCall=${this.toolCall}
    ></sketch-tool-card-base>`;
  }
}

@customElement("sketch-tool-card-multiple-choice")
export class SketchToolCardMultipleChoice extends SketchTailwindElement {
  @property() toolCall: ToolCall;
  @property() open: boolean;
  @property() selectedOption: MultipleChoiceOption = null;

  connectedCallback() {
    super.connectedCallback();
    this.updateSelectedOption();
  }

  updated(changedProps) {
    if (changedProps.has("toolCall")) {
      this.updateSelectedOption();
    }
  }

  updateSelectedOption() {
    if (this.toolCall?.result_message?.tool_result) {
      try {
        this.selectedOption = JSON.parse(
          this.toolCall.result_message.tool_result,
        ).selected;
      } catch (e) {
        console.error("Error parsing result:", e);
      }
    } else {
      this.selectedOption = null;
    }
  }

  async handleOptionClick(choice) {
    this.selectedOption = this.selectedOption === choice ? null : choice;

    const event = new CustomEvent("multiple-choice-selected", {
      detail: {
        responseText: this.selectedOption.responseText,
        toolCall: this.toolCall,
      },
      bubbles: true,
      composed: true,
    });
    this.dispatchEvent(event);
  }

  render() {
    let choices = [];
    let question = "";
    try {
      const inputData = JSON.parse(
        this.toolCall?.input || "{}",
      ) as MultipleChoiceParams;
      choices = inputData.responseOptions || [];
      question = inputData.question || "Please select an option:";
    } catch (e) {
      console.error("Error parsing multiple-choice input:", e);
    }

    const summaryContent =
      this.selectedOption !== null
        ? html`<span class="italic p-2">
            ${question}:
            <strong class="not-italic text-blue-600 font-semibold"
              >${this.selectedOption.caption}</strong
            >
          </span>`
        : html`<span class="italic p-2">${question}</span>`;

    const inputContent = html`<div class="flex flex-row flex-wrap gap-2 my-2">
      ${choices.map((choice) => {
        const isSelected =
          this.selectedOption !== null && this.selectedOption === choice;
        return html`
          <div
            class="inline-flex items-center px-3 py-2 rounded cursor-pointer transition-all duration-200 border select-none ${isSelected
              ? "bg-blue-50 border-blue-500"
              : "bg-gray-100 border-transparent hover:bg-gray-200 hover:border-gray-400 hover:-translate-y-px hover:shadow-md active:translate-y-0 active:shadow-sm active:bg-gray-300"}"
            @click=${() => this.handleOptionClick(choice)}
            title="${choice.responseText}"
          >
            <span class="option-label">${choice.caption}</span>
            ${isSelected
              ? html`<span class="ml-1.5 text-blue-600">✓</span>`
              : ""}
          </div>
        `;
      })}
    </div>`;

    return html`<div class="multiple-choice-card">
      ${summaryContent} ${inputContent}
    </div>`;
  }
}

@customElement("sketch-tool-card-todo-write")
export class SketchToolCardTodoWrite extends SketchTailwindElement {
  @property() toolCall: ToolCall;
  @property() open: boolean;

  render() {
    const inputData = JSON.parse(this.toolCall?.input || "{}");
    const tasks = inputData.tasks || [];

    // Generate circles based on task status
    const circles = tasks
      .map((task) => {
        switch (task.status) {
          case "completed":
            return "●"; // full circle
          case "in-progress":
            return "◐"; // half circle
          case "queued":
          default:
            return "○"; // empty circle
        }
      })
      .join(" ");

    const summaryContent = html`<span class="italic text-gray-600">
      ${circles}
    </span>`;
    const resultContent = this.toolCall?.result_message?.tool_result
      ? createPreElement(this.toolCall.result_message.tool_result)
      : "";

    return html`<sketch-tool-card-base
      .open=${this.open}
      .toolCall=${this.toolCall}
      .summaryContent=${summaryContent}
      .resultContent=${resultContent}
    ></sketch-tool-card-base>`;
  }
}

@customElement("sketch-tool-card-keyword-search")
export class SketchToolCardKeywordSearch extends SketchTailwindElement {
  @property() toolCall: ToolCall;
  @property() open: boolean;

  render() {
    const inputData = JSON.parse(this.toolCall?.input || "{}");
    const query = inputData.query || "";
    const searchTerms = inputData.search_terms || [];

    const summaryContent = html`<div
      class="flex flex-col gap-0.5 w-full max-w-full overflow-hidden"
    >
      <div
        class="text-gray-800 text-xs normal-case whitespace-normal break-words leading-tight"
      >
        🔍 ${query}
      </div>
      <div
        class="text-gray-600 text-xs normal-case whitespace-normal break-words leading-tight mt-px"
      >
        🗝️ ${searchTerms.join(", ")}
      </div>
    </div>`;

    const inputContent = html`<div>
      <div><strong>Query:</strong> ${query}</div>
      <div><strong>Search terms:</strong> ${searchTerms.join(", ")}</div>
    </div>`;

    const resultContent = this.toolCall?.result_message?.tool_result
      ? createPreElement(this.toolCall.result_message.tool_result)
      : "";

    return html`<sketch-tool-card-base
      .open=${this.open}
      .toolCall=${this.toolCall}
      .summaryContent=${summaryContent}
      .inputContent=${inputContent}
      .resultContent=${resultContent}
    ></sketch-tool-card-base>`;
  }
}

@customElement("sketch-tool-card-todo-read")
export class SketchToolCardTodoRead extends SketchTailwindElement {
  @property() toolCall: ToolCall;
  @property() open: boolean;

  render() {
    const summaryContent = html`<span class="italic text-gray-600">
      Read todo list
    </span>`;
    const resultContent = this.toolCall?.result_message?.tool_result
      ? createPreElement(this.toolCall.result_message.tool_result)
      : "";

    return html`<sketch-tool-card-base
      .open=${this.open}
      .toolCall=${this.toolCall}
      .summaryContent=${summaryContent}
      .resultContent=${resultContent}
    ></sketch-tool-card-base>`;
  }
}

@customElement("sketch-tool-card-generic")
export class SketchToolCardGeneric extends SketchTailwindElement {
  @property() toolCall: ToolCall;
  @property() open: boolean;

  render() {
    const summaryContent = html`<span
      class="block whitespace-normal break-words max-w-full w-full"
    >
      ${this.toolCall?.input}
    </span>`;

    const inputContent = html`<div class="max-w-full break-words">
      Input:
      ${createPreElement(
        this.toolCall?.input || "",
        "max-w-full whitespace-pre-wrap break-words",
      )}
    </div>`;

    const resultContent = this.toolCall?.result_message?.tool_result
      ? html`<div class="max-w-full break-words">
          Result: ${createPreElement(this.toolCall.result_message.tool_result)}
        </div>`
      : "";

    return html`<sketch-tool-card-base
      .open=${this.open}
      .toolCall=${this.toolCall}
      .summaryContent=${summaryContent}
      .inputContent=${inputContent}
      .resultContent=${resultContent}
    ></sketch-tool-card-base>`;
  }
}

declare global {
  interface HTMLElementTagNameMap {
    "sketch-tool-card-generic": SketchToolCardGeneric;
    "sketch-tool-card-bash": SketchToolCardBash;
    "sketch-tool-card-codereview": SketchToolCardCodeReview;
    "sketch-tool-card-done": SketchToolCardDone;
    "sketch-tool-card-patch": SketchToolCardPatch;
    "sketch-tool-card-think": SketchToolCardThink;
    "sketch-tool-card-set-slug": SketchToolCardSetSlug;
    "sketch-tool-card-commit-message-style": SketchToolCardCommitMessageStyle;
    "sketch-tool-card-multiple-choice": SketchToolCardMultipleChoice;
    "sketch-tool-card-todo-write": SketchToolCardTodoWrite;
    "sketch-tool-card-todo-read": SketchToolCardTodoRead;
    "sketch-tool-card-keyword-search": SketchToolCardKeywordSearch;
  }
}