import { action, makeAutoObservable } from 'mobx';
import { Col } from '../DocCreatorMenu';
import { FieldSettings, TemplateField } from '../TemplateFieldTypes/TemplateField';
import { Template } from '../Template';
import { NumListCast } from '../../../../../../fields/Doc';
import { DataVizBox } from '../../DataVizBox';
import { TemplateFieldType } from '../TemplateBackend';
import { TemplateMenuAIUtils } from './TemplateMenuAIUtils';

export type Conditional = {
    field: string;
    operator: '=' | '>' | '<' | 'contains';
    condition: string;
    target: string;
    attribute: string;
    value: string;
};

export class TemplateManager {
    _templates: Template[] = [];

    _conditionalFieldLogic: Record<string, Conditional[]> = {};

    constructor(templateSettings: FieldSettings[]) {
        makeAutoObservable(this);
        this._templates = templateSettings.map(settings => new Template(settings));
    }

    getValidTemplates = (cols: Col[]) => this._templates.filter(template => template.isValidTemplate(cols));

    addTemplate = (newTemplate: Template) => this._templates.push(newTemplate);

    removeTemplate = (template: Template) => {
        if (this._templates.includes(template)) {
            this._templates.splice(this._templates.indexOf(template), 1);
        }
        template.cleanup();
    };

    addFieldCondition = (fieldTitle: string, condition: Conditional) => {
        if (this._conditionalFieldLogic[fieldTitle] === undefined) {
            this._conditionalFieldLogic[fieldTitle] = [condition];
        } else {
            this._conditionalFieldLogic[fieldTitle].push(condition);
        }
    };

    removeFieldCondition = (fieldTitle: string, condition: Conditional) => (this._conditionalFieldLogic[fieldTitle] = this._conditionalFieldLogic[fieldTitle]?.filter(cond => cond !== condition));

    addDataField = (title: string) => this._templates.forEach(template => template.addDataField(title));

    removeDataField = (title: string) => this._templates.forEach(template => template.removeDataField(title));

    createDocsFromTemplate = action((dv: DataVizBox, template: Template, cols: Col[], debug: boolean = false) => {
        const csvFields = Array.from(Object.keys(dv.records[0]));

        const processContent = (content: { [title: string]: string }) => {
            const templateCopy = template.clone();

            csvFields
                .filter(title => title)
                .forEach(title => {
                    const field = templateCopy.getFieldByTitle(title);
                    field?.setContent(content[title], field.viewType);
                });

            const gptFunc = (type: TemplateFieldType) => (type === TemplateFieldType.VISUAL ? TemplateMenuAIUtils.renderGPTImageCall : TemplateMenuAIUtils.renderGPTTextCall);

            const generateGptContent = cols
                .map(field => ({ field, templateField: field?.AIGenerated && templateCopy.getFieldByTitle(field.title) }))
                .filter(({ templateField }) => templateField instanceof TemplateField)
                .map(({ field, templateField }) => gptFunc(field.type)(templateCopy, field, (templateField as TemplateField).getID));

            return Promise.all(generateGptContent).then(() => templateCopy.applyConditionalLogic(this._conditionalFieldLogic));
        };

        const rowContents = debug
            ? [{}, {}, {}, {}]
            : NumListCast(dv.layoutDoc.dataViz_selectedRows).map(row =>
                  csvFields.reduce(
                      (values, col) => {
                          values[col] = dv.records[row][col];
                          return values;
                      },
                      {} as { [title: string]: string }
                  )
              );

        return Promise.all(rowContents.map(processContent));
    });
}