import Pocketbase, { type RecordListOptions } from "pocketbase"
import {
    type Recipe,
    type Ingredient,
    type Step,
    type Tag,
    Collection
} from './schema'

class APIClient {
    client: Pocketbase

    constructor() {
        this.client = new Pocketbase("http://localhost:4321")
        this.client.autoCancellation(false)
    }

    async getRecipesPage(page: number, perPage: number = 30, options: RecordListOptions) {
        return await this.client.collection<Recipe>(Collection.RECIPES).getList(page, perPage, options)
    }

    async getAllRecipes() {
        return await this.client.collection<Recipe>(Collection.RECIPES).getFullList({ expand: 'ingredients,tags,steps,images,steps.ingredients' })
    }

    async getRecipe(id: string) {
        return await this.client.collection<Recipe>(Collection.RECIPES).getOne(id, { expand: 'ingredients,tags,steps,images,steps.ingredients' })
    }

    // IMAGE
    async getImageURL(imgID: string, relative: boolean = true) {
        const record = await this.client.collection(Collection.IMAGES).getOne(imgID)
        const res = this.client.files.getURL(record, record.image)
        return relative ? res.substring(21) : res
    }

    async getRecipeImages(recipeID: string) {
        const re = await this.getRecipe(recipeID)
        const imgIDs = re.images ?? []

        const urls = Promise.all(
            imgIDs.map(img => this.getImageURL(img))
        )
        return urls
    }

    async getAllTags() {
        return await this.client.collection<Tag>(Collection.TAGS).getFullList()
    }

    async getTag(name: string) {
        return await this.client.collection<Tag>(Collection.TAGS).getList(1, 50, { filter: `name = '${name}'` })
    }

    async getRecipesOfTag(tagName: string) {
        // get the tag id first
        const tagResult = await this.getTag(tagName)
        if (tagResult.items.length === 0) {
            return []
        }
        const tag = tagResult.items[0]

        return await this.client.collection<Recipe>(Collection.RECIPES).getFullList({ 
            filter: `tags ~ '${tag.id}'`,
            expand: 'ingredients,tags,steps,images,steps.ingredients' 
        })
    }

}
const client = new APIClient()
export default client;