import { createRef } from "preact";
import { StateUpdater, useContext, useEffect, useState } from "preact/hooks";
import {
  ChatStore,
  TemplateAPI,
  TemplateTools,
  clearTotalCost,
  getTotalCost,
} from "./app";
import models from "./models";
import { TemplateChatStore } from "./chatbox";
import { tr, Tr, langCodeContext, LANG_OPTIONS } from "./translate";
import p from "preact-markdown";
import { isVailedJSON } from "./message";
import { SetAPIsTemplate } from "./setAPIsTemplate";

const TTS_VOICES: string[] = [
  "alloy",
  "echo",
  "fable",
  "onyx",
  "nova",
  "shimmer",
];
const TTS_FORMAT: string[] = ["mp3", "opus", "aac", "flac"];

const Help = (props: { children: any; help: string }) => {
  return (
    <div>
      <button
        className="absolute"
        onClick={() => {
          alert(props.help);
        }}
      >
        ❓
      </button>
      <p className="flex justify-between">{props.children}</p>
    </div>
  );
};

const SelectModel = (props: {
  chatStore: ChatStore;
  setChatStore: (cs: ChatStore) => void;
  help: string;
}) => {
  return (
    <Help help={props.help}>
      <label className="m-2 p-2">Model</label>
      <select
        className="m-2 p-2"
        value={props.chatStore.model}
        onChange={(event: any) => {
          const model = event.target.value as string;
          props.chatStore.model = model;
          props.chatStore.maxTokens = models[model].maxToken;
          props.setChatStore({ ...props.chatStore });
        }}
      >
        {Object.keys(models).map((opt) => (
          <option value={opt}>{opt}</option>
        ))}
      </select>
    </Help>
  );
};

const LongInput = (props: {
  chatStore: ChatStore;
  setChatStore: (cs: ChatStore) => void;
  field: "systemMessageContent" | "toolsString";
  help: string;
}) => {
  return (
    <Help help={props.help}>
      <textarea
        className="m-2 p-2 border rounded focus w-full"
        value={props.chatStore[props.field]}
        onChange={(event: any) => {
          props.chatStore[props.field] = event.target.value;
          props.setChatStore({ ...props.chatStore });
        }}
      ></textarea>
    </Help>
  );
};

const Input = (props: {
  chatStore: ChatStore;
  setChatStore: (cs: ChatStore) => void;
  field:
    | "apiKey"
    | "apiEndpoint"
    | "whisper_api"
    | "whisper_key"
    | "tts_api"
    | "tts_key"
    | "image_gen_api"
    | "image_gen_key";
  help: string;
}) => {
  const [hideInput, setHideInput] = useState(true);
  return (
    <Help help={props.help}>
      <label className="m-2 p-2">{props.field}</label>
      <span
        className="m-2 p-2"
        onClick={(event: any) => setHideInput(!hideInput)}
      >
        <label>hide</label>
        <input type="checkbox" checked={hideInput} />
      </span>
      <input
        type={hideInput ? "password" : "text"}
        className="m-2 p-2 border rounded focus w-32 md:w-fit"
        value={props.chatStore[props.field]}
        onChange={(event: any) => {
          props.chatStore[props.field] = event.target.value;
          props.setChatStore({ ...props.chatStore });
        }}
      ></input>
    </Help>
  );
};

const Slicer = (props: {
  chatStore: ChatStore;
  setChatStore: (cs: ChatStore) => void;
  field: "temperature" | "top_p" | "tts_speed";
  help: string;
  min: number;
  max: number;
}) => {
  const enable_filed_name: "temperature_enabled" | "top_p_enabled" =
    `${props.field}_enabled` as any;

  const enabled = props.chatStore[enable_filed_name];

  if (enabled === null || enabled === undefined) {
    if (props.field === "temperature") {
      props.chatStore[enable_filed_name] = true;
    }
    if (props.field === "top_p") {
      props.chatStore[enable_filed_name] = false;
    }
  }

  const setEnabled = (state: boolean) => {
    props.chatStore[enable_filed_name] = state;
    props.setChatStore({ ...props.chatStore });
  };
  return (
    <Help help={props.help}>
      <span>
        <label className="m-2 p-2">{props.field}</label>
        <input
          type="checkbox"
          checked={props.chatStore[enable_filed_name]}
          onClick={() => {
            setEnabled(!enabled);
          }}
        />
      </span>
      <span>
        <input
          disabled={!enabled}
          className="m-2 p-2 border rounded focus w-28"
          type="range"
          min={props.min}
          max={props.max}
          step="0.01"
          value={props.chatStore[props.field]}
          onChange={(event: any) => {
            const value = parseFloat(event.target.value);
            props.chatStore[props.field] = value;
            props.setChatStore({ ...props.chatStore });
          }}
        />
        <input
          disabled={!enabled}
          className="m-2 p-2 border rounded focus w-28"
          type="number"
          value={props.chatStore[props.field]}
          onChange={(event: any) => {
            const value = parseFloat(event.target.value);
            props.chatStore[props.field] = value;
            props.setChatStore({ ...props.chatStore });
          }}
        />
      </span>
    </Help>
  );
};

const Number = (props: {
  chatStore: ChatStore;
  setChatStore: (cs: ChatStore) => void;
  field:
    | "totalTokens"
    | "maxTokens"
    | "maxGenTokens"
    | "tokenMargin"
    | "postBeginIndex"
    | "presence_penalty"
    | "frequency_penalty";
  readOnly: boolean;
  help: string;
}) => {
  return (
    <Help help={props.help}>
      <span>
        <label className="m-2 p-2">{props.field}</label>
        {props.field === "maxGenTokens" && (
          <input
            type="checkbox"
            checked={props.chatStore.maxGenTokens_enabled}
            onChange={() => {
              const newChatStore = { ...props.chatStore };
              newChatStore.maxGenTokens_enabled =
                !newChatStore.maxGenTokens_enabled;
              props.setChatStore({ ...newChatStore });
            }}
          />
        )}
      </span>
      <input
        readOnly={props.readOnly}
        disabled={
          props.field === "maxGenTokens" &&
          !props.chatStore.maxGenTokens_enabled
        }
        type="number"
        className="m-2 p-2 border rounded focus w-28"
        value={props.chatStore[props.field]}
        onChange={(event: any) => {
          console.log("type", typeof event.target.value);
          let newNumber = parseFloat(event.target.value);
          if (newNumber < 0) newNumber = 0;
          props.chatStore[props.field] = newNumber;
          props.setChatStore({ ...props.chatStore });
        }}
      ></input>
    </Help>
  );
};
const Choice = (props: {
  chatStore: ChatStore;
  setChatStore: (cs: ChatStore) => void;
  field: "streamMode" | "develop_mode" | "json_mode";
  help: string;
}) => {
  return (
    <Help help={props.help}>
      <label className="m-2 p-2">{props.field}</label>
      <input
        type="checkbox"
        className="m-2 p-2 border rounded focus"
        checked={props.chatStore[props.field]}
        onChange={(event: any) => {
          props.chatStore[props.field] = event.target.checked;
          props.setChatStore({ ...props.chatStore });
        }}
      ></input>
    </Help>
  );
};

export default (props: {
  chatStore: ChatStore;
  setChatStore: (cs: ChatStore) => void;
  setShow: StateUpdater<boolean>;
  selectedChatStoreIndex: number;
  templates: TemplateChatStore[];
  setTemplates: (templates: TemplateChatStore[]) => void;
  templateAPIs: TemplateAPI[];
  setTemplateAPIs: (templateAPIs: TemplateAPI[]) => void;
  templateAPIsWhisper: TemplateAPI[];
  setTemplateAPIsWhisper: (templateAPIs: TemplateAPI[]) => void;
  templateAPIsTTS: TemplateAPI[];
  setTemplateAPIsTTS: (templateAPIs: TemplateAPI[]) => void;
  templateAPIsImageGen: TemplateAPI[];
  setTemplateAPIsImageGen: (templateAPIs: TemplateAPI[]) => void;
  templateTools: TemplateTools[];
  setTemplateTools: (templateTools: TemplateTools[]) => void;
}) => {
  let link =
    location.protocol +
    "//" +
    location.host +
    location.pathname +
    `?key=${encodeURIComponent(
      props.chatStore.apiKey
    )}&api=${encodeURIComponent(props.chatStore.apiEndpoint)}&mode=${
      props.chatStore.streamMode ? "stream" : "fetch"
    }&model=${props.chatStore.model}&sys=${encodeURIComponent(
      props.chatStore.systemMessageContent
    )}`;
  if (props.chatStore.develop_mode) {
    link = link + `&dev=true`;
  }

  const importFileRef = createRef();
  const [totalCost, setTotalCost] = useState(getTotalCost());
  // @ts-ignore
  const { langCode, setLangCode } = useContext(langCodeContext);

  useEffect(() => {
    const handleKeyPress = (event: any) => {
      if (event.keyCode === 27) {
        // keyCode for ESC key is 27
        props.setShow(false);
      }
    };

    document.addEventListener("keydown", handleKeyPress);

    return () => {
      document.removeEventListener("keydown", handleKeyPress);
    };
  }, []); // The empty dependency array ensures that the effect runs only once

  return (
    <div
      onClick={() => props.setShow(false)}
      className="left-0 top-0 overflow-scroll flex justify-center absolute w-screen h-full bg-black bg-opacity-50 z-10"
    >
      <div
        onClick={(event: any) => {
          event.stopPropagation();
        }}
        className="m-2 p-2 bg-white rounded-lg h-fit lg:w-2/3 z-20"
      >
        <h3 className="text-xl text-center flex justify-between">
          <span>{Tr("Settings")}</span>
          <select>
            {Object.keys(LANG_OPTIONS).map((opt) => (
              <option
                value={opt}
                selected={opt === (langCodeContext as any).langCode}
                onClick={(event: any) => {
                  console.log("set lang code", event.target.value);
                  setLangCode(event.target.value);
                }}
              >
                {LANG_OPTIONS[opt].name}
              </option>
            ))}
          </select>
        </h3>
        <hr />
        <div className="flex justify-between">
          <button
            className="p-2 m-2 rounded bg-purple-600 text-white"
            onClick={() => {
              navigator.clipboard.writeText(link);
              alert(tr(`Copied link:`, langCode) + `${link}`);
            }}
          >
            {Tr("Copy Setting Link")}
          </button>
          <button
            className="p-2 m-2 rounded bg-rose-600 text-white"
            onClick={() => {
              if (!confirm(tr("Are you sure to clear all history?", langCode)))
                return;
              props.chatStore.history = props.chatStore.history.filter(
                (msg) => msg.example && !msg.hide
              );
              props.chatStore.postBeginIndex = 0;
              props.setChatStore({ ...props.chatStore });
            }}
          >
            {Tr("Clear History")}
          </button>
          <button
            className="p-2 m-2 rounded bg-cyan-600 text-white"
            onClick={() => {
              props.setShow(false);
            }}
          >
            {Tr("Close")}
          </button>
        </div>
        <p className="m-2 p-2">
          {Tr("Total cost in this session")} ${props.chatStore.cost.toFixed(4)}
        </p>
        <hr />
        <div className="box">
          <LongInput
            field="systemMessageContent"
            help="系统消息，用于指示ChatGPT的角色和一些前置条件，例如“你是一个有帮助的人工智能助理”，或者“你是一个专业英语翻译，把我的话全部翻译成英语”，详情参考 OPEAN AI API 文档"
            {...props}
          />
          <span>
            Valied JSON:{" "}
            {isVailedJSON(props.chatStore.toolsString) ? "🆗" : "❌"}
          </span>
          <LongInput
            field="toolsString"
            help="function call tools, should be valied json format in list"
            {...props}
          />
          <div className="relative border-slate-300 border rounded">
            <div className="flex justify-between">
              <strong className="p-1 m-1">Chat API</strong>
              <SetAPIsTemplate
                label="Chat API"
                endpoint={props.chatStore.apiEndpoint}
                APIkey={props.chatStore.apiKey}
                tmps={props.templateAPIs}
                setTmps={props.setTemplateAPIs}
              />
            </div>
            <hr />
            <Input
              field="apiKey"
              help="OPEN AI API 密钥，请勿泄漏此密钥"
              {...props}
            />
            <Input
              field="apiEndpoint"
              help="API 端点，方便在不支持的地区使用反向代理服务，默认为 https://api.openai.com/v1/chat/completions"
              {...props}
            />
          </div>
          <Choice
            field="streamMode"
            help="流模式，使用 stream mode 将可以动态看到生成内容，但无法准确计算 token 数量，在 token 数量过多时可能会裁切过多或过少历史消息"
            {...props}
          />
          <Choice
            field="develop_mode"
            help="开发者模式，开启后会显示更多选项及功能"
            {...props}
          />
          <Choice field="json_mode" help="JSON Mode" {...props} />
          <SelectModel
            help="模型，默认 3.5。不同模型性能和定价也不同，请参考 API 文档。"
            {...props}
          />
          <Number
            field="maxTokens"
            help="最大上下文 token 数量。此值会根据选择的模型自动设置。"
            readOnly={false}
            {...props}
          />
          <Number
            field="maxGenTokens"
            help="最大生成 Tokens 数量，可选值。"
            readOnly={false}
            {...props}
          />
          <Number
            field="tokenMargin"
            help="当 totalTokens > maxTokens - tokenMargin 时会触发历史消息裁切，chatgpt会“忘记”一部分对话中的消息（但所有历史消息仍然保存在本地）"
            readOnly={false}
            {...props}
          />
          <Number
            field="postBeginIndex"
            help="指示发送 API 请求时要”忘记“多少历史消息"
            readOnly={true}
            {...props}
          />
          <Number
            field="totalTokens"
            help="token总数，每次对话都会更新此参数，stream模式下该参数为估计值"
            readOnly={true}
            {...props}
          />
          <Slicer
            field="temperature"
            min={0}
            max={2}
            help="温度，数值越大模型生成文字的随机性越高。"
            {...props}
          />
          <Slicer
            field="top_p"
            min={0}
            max={1}
            help="Top P 采样方法。建议与温度采样方法二选一，不要同时开启。"
            {...props}
          />
          <Number
            field="presence_penalty"
            help="存在惩罚度"
            readOnly={false}
            {...props}
          />
          <Number
            field="frequency_penalty"
            help="频率惩罚度"
            readOnly={false}
            {...props}
          />

          <div className="relative border-slate-300 border rounded">
            <div className="flex justify-between">
              <strong className="p-1 m-1">Whisper API</strong>
              <SetAPIsTemplate
                label="Whisper API"
                endpoint={props.chatStore.whisper_api}
                APIkey={props.chatStore.whisper_key}
                tmps={props.templateAPIsWhisper}
                setTmps={props.setTemplateAPIsWhisper}
              />
            </div>
            <hr />
            <Input
              field="whisper_key"
              help="用于 Whisper 服务的 key，默认为 上方使用的OPENAI key，可在此单独配置专用key"
              {...props}
            />
            <Input
              field="whisper_api"
              help="Whisper 语言转文字服务，填入此api才会开启，默认为 https://api.openai.com/v1/audio/transriptions"
              {...props}
            />
          </div>

          <Input field="tts_key" help="tts service api key" {...props} />
          <Input
            field="tts_api"
            help="tts api, eg. https://api.openai.com/v1/audio/speech"
            {...props}
          />
          <Help help="tts voice style">
            <label className="m-2 p-2">TTS Voice</label>
            <select
              className="m-2 p-2"
              value={props.chatStore.tts_voice}
              onChange={(event: any) => {
                const voice = event.target.value as string;
                props.chatStore.tts_voice = voice;
                props.setChatStore({ ...props.chatStore });
              }}
            >
              {TTS_VOICES.map((opt) => (
                <option value={opt}>{opt}</option>
              ))}
            </select>
          </Help>
          <Slicer
            min={0.25}
            max={4.0}
            field="tts_speed"
            help={"TTS Speed"}
            {...props}
          />
          <Help help="tts response format">
            <label className="m-2 p-2">TTS Format</label>
            <select
              className="m-2 p-2"
              value={props.chatStore.tts_format}
              onChange={(event: any) => {
                const format = event.target.value as string;
                props.chatStore.tts_format = format;
                props.setChatStore({ ...props.chatStore });
              }}
            >
              {TTS_FORMAT.map((opt) => (
                <option value={opt}>{opt}</option>
              ))}
            </select>
          </Help>
          <Input
            field="image_gen_key"
            help="image generation service api key"
            {...props}
          />
          <Input
            field="image_gen_api"
            help="DALL image gen key, eg. https://api.openai.com/v1/images/generations"
            {...props}
          />

          <div className="flex justify-between">
            <p className="m-2 p-2">
              {Tr("Accumulated cost in all sessions")} ${totalCost.toFixed(4)}
            </p>
            <button
              className="p-2 m-2 rounded bg-emerald-500"
              onClick={() => {
                clearTotalCost();
                setTotalCost(getTotalCost());
              }}
            >
              {Tr("Reset")}
            </button>
          </div>
          <div className="flex justify-evenly flex-wrap">
            {props.chatStore.tts_api && props.chatStore.tts_key && (
              <SetAPIsTemplate
                label="TTS API"
                endpoint={props.chatStore.tts_api}
                APIkey={props.chatStore.tts_key}
                tmps={props.templateAPIsTTS}
                setTmps={props.setTemplateAPIsTTS}
              />
            )}
            {props.chatStore.image_gen_api && props.chatStore.image_gen_key && (
              <SetAPIsTemplate
                label="Image Gen API"
                endpoint={props.chatStore.image_gen_api}
                APIkey={props.chatStore.image_gen_key}
                tmps={props.templateAPIsImageGen}
                setTmps={props.setTemplateAPIsImageGen}
              />
            )}

            {props.chatStore.toolsString.trim() && (
              <button
                className="p-2 m-2 rounded bg-blue-300"
                onClick={() => {
                  const name = prompt(`Give this **Tools** template a name:`);
                  if (!name) {
                    alert("No template name specified");
                    return;
                  }
                  const newToolsTmp: TemplateTools = {
                    name,
                    toolsString: props.chatStore.toolsString,
                  };
                  props.templateTools.push(newToolsTmp);
                  props.setTemplateTools([...props.templateTools]);
                }}
              >
                {Tr(`Save Tools`)}
              </button>
            )}
          </div>
          <p className="flex justify-evenly">
            <button
              className="p-2 m-2 rounded bg-amber-500"
              onClick={() => {
                let dataStr =
                  "data:text/json;charset=utf-8," +
                  encodeURIComponent(
                    JSON.stringify(props.chatStore, null, "\t")
                  );
                let downloadAnchorNode = document.createElement("a");
                downloadAnchorNode.setAttribute("href", dataStr);
                downloadAnchorNode.setAttribute(
                  "download",
                  `chatgpt-api-web-${props.selectedChatStoreIndex}.json`
                );
                document.body.appendChild(downloadAnchorNode); // required for firefox
                downloadAnchorNode.click();
                downloadAnchorNode.remove();
              }}
            >
              {Tr("Export")}
            </button>
            <button
              className="p-2 m-2 rounded bg-amber-500"
              onClick={() => {
                const name = prompt(tr("Give this template a name:", langCode));
                if (!name) {
                  alert(tr("No template name specified", langCode));
                  return;
                }
                const tmp: ChatStore = structuredClone(props.chatStore);
                tmp.history = tmp.history.filter((h) => h.example);
                // clear api because it is stored in the API template
                tmp.apiEndpoint = "";
                tmp.apiKey = "";
                tmp.whisper_api = "";
                tmp.whisper_key = "";
                tmp.tts_api = "";
                tmp.tts_key = "";
                tmp.image_gen_api = "";
                tmp.image_gen_key = "";
                // @ts-ignore
                tmp.name = name;
                props.templates.push(tmp as TemplateChatStore);
                props.setTemplates([...props.templates]);
              }}
            >
              {Tr("As template")}
            </button>
            <button
              className="p-2 m-2 rounded bg-amber-500"
              onClick={() => {
                if (
                  !confirm(
                    tr(
                      "This will OVERWRITE the current chat history! Continue?",
                      langCode
                    )
                  )
                )
                  return;
                console.log("importFileRef", importFileRef);
                importFileRef.current.click();
              }}
            >
              Import
            </button>
            <input
              className="hidden"
              ref={importFileRef}
              type="file"
              onChange={() => {
                const file = importFileRef.current.files[0];
                console.log("file to import", file);
                if (!file || file.type !== "application/json") {
                  alert(tr("Please select a json file", langCode));
                  return;
                }
                const reader = new FileReader();
                reader.onload = () => {
                  console.log("import content", reader.result);
                  if (!reader) {
                    alert(tr("Empty file", langCode));
                    return;
                  }
                  try {
                    const newChatStore: ChatStore = JSON.parse(
                      reader.result as string
                    );
                    if (!newChatStore.chatgpt_api_web_version) {
                      throw tr(
                        "This is not an exported chatgpt-api-web chatstore file. The key 'chatgpt_api_web_version' is missing!",
                        langCode
                      );
                    }
                    props.setChatStore({ ...newChatStore });
                  } catch (e) {
                    alert(
                      tr(`Import error on parsing json:`, langCode) + `${e}`
                    );
                  }
                };
                reader.readAsText(file);
              }}
            />
          </p>
          <p className="text-center m-2 p-2">
            chatgpt-api-web ChatStore {Tr("Version")}{" "}
            {props.chatStore.chatgpt_api_web_version}
          </p>
        </div>
        <hr />
      </div>
    </div>
  );
};