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import { message } from 'ant-design-vue'
import type { WatchStopHandle } from 'vue'
import type { TableType } from 'nocodb-sdk'
import { extractSdkResponseErrorMsg, storeToRefs, useBase, useNuxtApp, useState, watch } from '#imports'
export function useMetas() {
const { $api } = useNuxtApp()
const { tables } = storeToRefs(useBase())
const metas = useState<{ [idOrTitle: string]: TableType | any }>('metas', () => ({}))
const metasWithIdAsKey = computed<Record<string, TableType>>(() => {
const idEntries = Object.entries(metas.value).filter(([k, v]) => k === v.id)
return Object.fromEntries(idEntries)
})
const loadingState = useState<Record<string, boolean>>('metas-loading-state', () => ({}))
const setMeta = async (model: any) => {
metas.value = {
...metas.value,
[model.id!]: model,
[model.title]: model,
}
}
// todo: this needs a proper refactor, arbitrary waiting times are usually not a good idea
const getMeta = async (tableIdOrTitle: string, force = false, skipIfCacheMiss = false): Promise<TableType | null> => {
if (!tableIdOrTitle) return null
/** wait until loading is finished if requesting same meta
* use while to recheck loading state since it can be changed by other requests
* */
// eslint-disable-next-line no-unmodified-loop-condition
while (!force && loadingState.value[tableIdOrTitle]) {
await new Promise((resolve) => {
let unwatch: WatchStopHandle
// set maximum 10sec timeout to wait loading meta
const timeout = setTimeout(() => {
unwatch?.()
clearTimeout(timeout)
resolve(null)
}, 10000)
// watch for loading state change
unwatch = watch(
() => !!loadingState.value[tableIdOrTitle],
(isLoading) => {
if (!isLoading) {
clearTimeout(timeout)
unwatch?.()
resolve(null)
}
},
{ immediate: true },
)
})
if (metas.value[tableIdOrTitle]) {
return metas.value[tableIdOrTitle]
}
}
// return null if cache miss
if (skipIfCacheMiss) return null
loadingState.value[tableIdOrTitle] = true
try {
if (!force && metas.value[tableIdOrTitle]) {
return metas.value[tableIdOrTitle]
}
const modelId = (tables.value.find((t) => t.id === tableIdOrTitle) || tables.value.find((t) => t.title === tableIdOrTitle))
?.id
if (!modelId) {
console.warn(`Table '${tableIdOrTitle}' is not found in the table list`)
return null
}
const model = await $api.dbTable.read(modelId)
metas.value = {
...metas.value,
[model.id!]: model,
[model.title]: model,
}
return model
} catch (e: any) {
message.error(await extractSdkResponseErrorMsg(e))
} finally {
delete loadingState.value[tableIdOrTitle]
}
return null
}
const clearAllMeta = () => {
metas.value = {}
}
const removeMeta = (idOrTitle: string) => {
const meta = metas.value[idOrTitle]
if (meta) {
delete metas.value[meta.id]
delete metas.value[meta.title]
}
}
return { getMeta, clearAllMeta, metas, metasWithIdAsKey, removeMeta, setMeta }
}