import { createItem, parseGenField } from "lib/gen/utils";
import {
  copyProps,
  mapCompItemTree,
  propFromItem,
  reduceItemMapping,
} from "lib/utils/diff-gen";
import { set } from "lib/utils/set";
import get from "lodash.get";
import { generateSelect } from "../../md/gen/md-select";
import { newField } from "./fields";
import { genFormOnInit } from "./gen-form/on-init";
import { genFormOnLoad } from "./gen-form/on-load";
import { genFormOnSubmit } from "./gen-form/on-submit";
import { genFormSubmit } from "./gen-form/submit";
import { get_rel_many } from "./get_rel_many";
import { walkGenForm } from "./walker";

export const generateForm = async (
  _: any,
  data: any,
  item: PrasiItem,
  commit: boolean,
  _is_md?: boolean
) => {
  let table = "" as string;
  try {
    table = eval(data.gen__table.value);
  } catch (e) {
    table = data.gen__table.value;
  }
  const raw_fields = JSON.parse(data.gen__fields.value) as (
    | string
    | { value: string; checked: string[] }
  )[];
  let pk = "";
  let pks: Record<string, string> = {};
  const fields = parseGenField(raw_fields);
  const res = generateSelect(fields);
  const rel_many = get_rel_many(fields);
  pk = res.pk;
  const select = res.select as any;
  const result: Record<string, PropVal> = {};
  if (!pk) {
    alert("Failed to generate! Primary Key not found. ");
    return;
  }
  let is_md = !!_is_md;
  if (typeof _is_md === "undefined") {
    let cur = item.edit.parent as any;
    while (cur) {
      if (cur) {
        if (cur.item.component?.id === "cb52075a-14ab-455a-9847-6f1d929a2a73") {
          is_md = true;
          break;
        }
        if (cur.item.edit?.parent) {
          cur = cur.item.edit.parent;
        } else {
          break;
        }
      } else {
        break;
      }
    }
  }

  if (pk) {
    const gen_form_args = { result, pk, pks, table, select, is_md, rel_many };
    if (data["on_load"]) {
      genFormOnLoad(gen_form_args);
    }
    if (data["on_submit"]) {
      genFormOnSubmit(gen_form_args);
    }
    if (typeof is_md === "boolean" && is_md) {
      genFormOnInit(gen_form_args);
    }
    const child_fields = [];
    for (const item of fields.filter((e) => !e.is_pk)) {
      let value = [] as Array<string>;
      if (["has-one", "has-many"].includes(item.type)) {
        value = get(item, "value.checked") as any;
      }
      const field = await newField(
        item,
        { parent_table: table, value, is_from_table_edit: false },
        true
      );
      child_fields.push(field);
    }
    let submit = null;
    if (typeof is_md === "boolean" && !is_md)
      submit = genFormSubmit(gen_form_args);

    const body_prop = {
      adv: {
        js: "<div\n  {...props}\n  className={cx(\n    props.className,\n    css`\n    align-content: start;`,\n  )}\n>\n  {children}\n</div>",
        jsBuilt:
          'render(/* @__PURE__ */ React.createElement(\n  "div",\n  {\n    ...props,\n    className: cx(\n      props.className,\n      css`\n    align-content: start;`\n    )\n  },\n  children\n));\n',
      },
      dim: {
        h: "full",
        w: "full",
      },
      layout: {
        dir: "row",
        gap: 0,
        wrap: "flex-wrap",
        align: "top-left",
      },
    };
    const existing_childs = (
      (item.component?.props.body as any)?.content as IItem
    )?.childs;

    let new_body = createItem({
      name: "item",
      ...body_prop,
      childs: [
        createItem({
          adv: {
            js: '<div {...props} className={cx(props.className, "form-fields")}>\n  {children}\n</div>',
            jsBuilt:
              'render(/* @__PURE__ */ React.createElement("div", { ...props, className: cx(props.className, "form-fields") }, children));\n',
          },
          dim: {
            w: "full",
            h: "full",
            wUnit: "px",
            hUnit: "px",
          },
          name: "fields",
          layout: {
            dir: "row",
            align: "top-left",
            gap: 0,
            wrap: "flex-wrap",
          },
          childs: child_fields,
        }),
        submit,
      ].filter((e) => e),
    });

    if (Array.isArray(existing_childs) && existing_childs.length > 0) {
      walkGenForm(new_body, existing_childs as any);
    }

    if (item.edit) {
      const current_body = propFromItem(item)?.body?.value as IItem;

      if (current_body) {
        const mapping = mapCompItemTree(new_body, {
          shouldAdd({ item }) {
            if (item.component?.props?.sub_type?.value === "table-edit")
              return "add-skip-children";

            return "add";
          },
        });

        reduceItemMapping(current_body, mapping, (old_item, new_item) => {
          const pold = propFromItem(old_item);
          const pnew = propFromItem(new_item);

          let result = old_item;
          if (
            result.component &&
            result.component?.id === "32550d01-42a3-4b15-a04a-2c2d5c3c8e67"
          ) {
            if (pold.type.value !== pnew.type.value) {
              result = new_item;
            } else if (pold.sub_type.value !== pnew.sub_type.value) {
              result = new_item;
            }

            copyProps(old_item, new_item, [
              "placeholder",
              "label",
              "link__url",
              "ext__width",
              "opt__load_trigger",
              "ext__on_change",
              "ext__description",
              "ext__show_label",
              "ext__disabled",
              "ext__prefix",
              "ext__suffix",
            ]);
          }

          return result;
        });

        if (
          mapping["32550d01-42a3-4b15-a04a-2c2d5c3c8e67"] &&
          Object.keys(mapping["32550d01-42a3-4b15-a04a-2c2d5c3c8e67"]).length >
            0
        ) {
          for (const val of Object.values(
            mapping["32550d01-42a3-4b15-a04a-2c2d5c3c8e67"]
          )) {
            current_body.childs?.[0]?.childs.push(val);
          }
        }

        if (current_body?.childs?.length > 0) {
          new_body = current_body;
        }
      }
    }

    console.log(result);
    if (commit) {
      Object.keys(result).map((e) => {
        item.edit.setProp(e, result[e]);
      });
      item.edit.setProp("body", {
        mode: "jsx",
        value: new_body,
      });
      await item.edit.commit();
    } else {
      set(data, "body.value", { ...data.body?.value, ...body_prop });
      set(data, "body.value.childs", new_body.childs);
      Object.keys(result).map((e) => {
        set(data, e, result[e]);
      });
      return;
    }
  }
};