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import { createMemo } from "solid-js"
import { createStore } from "solid-js/store"
import { DateTime } from "luxon"
import { filter, firstBy, flat, groupBy, mapValues, pipe, uniqueBy, values } from "remeda"
import { createSimpleContext } from "@opencode-ai/ui/context"
import { useProviders } from "@/hooks/use-providers"
import { Persist, persisted } from "@/utils/persist"
export type ModelKey = { providerID: string; modelID: string }
type Visibility = "show" | "hide"
type User = ModelKey & { visibility: Visibility; favorite?: boolean }
type Store = {
user: User[]
recent: ModelKey[]
variant?: Record<string, string | undefined>
}
const RECENT_LIMIT = 5
function modelKey(model: ModelKey) {
return `${model.providerID}:${model.modelID}`
}
export const { use: useModels, provider: ModelsProvider } = createSimpleContext({
name: "Models",
init: () => {
const providers = useProviders()
const [store, setStore, _, ready] = persisted(
Persist.global("model", ["model.v1"]),
createStore<Store>({
user: [],
recent: [],
variant: {},
}),
)
const available = createMemo(() =>
providers.connected().flatMap((p) =>
Object.values(p.models).map((m) => ({
...m,
provider: p,
})),
),
)
const release = createMemo(
() =>
new Map(
available().map((model) => {
const parsed = DateTime.fromISO(model.release_date)
return [modelKey({ providerID: model.provider.id, modelID: model.id }), parsed] as const
}),
),
)
const latest = createMemo(() =>
pipe(
available(),
filter(
(x) =>
Math.abs(
(release().get(modelKey({ providerID: x.provider.id, modelID: x.id })) ?? DateTime.invalid("invalid"))
.diffNow()
.as("months"),
) < 6,
),
groupBy((x) => x.provider.id),
mapValues((models) =>
pipe(
models,
groupBy((x) => x.family),
values(),
(groups) =>
groups.flatMap((g) => {
const first = firstBy(g, [(x) => x.release_date, "desc"])
return first ? [{ modelID: first.id, providerID: first.provider.id }] : []
}),
),
),
values(),
flat(),
),
)
const latestSet = createMemo(() => new Set(latest().map((x) => modelKey(x))))
const visibility = createMemo(() => {
const map = new Map<string, Visibility>()
for (const item of store.user) map.set(`${item.providerID}:${item.modelID}`, item.visibility)
return map
})
const list = createMemo(() =>
available().map((m) => ({
...m,
name: m.name.replace("(latest)", "").trim(),
latest: m.name.includes("(latest)"),
})),
)
const find = (key: ModelKey) => list().find((m) => m.id === key.modelID && m.provider.id === key.providerID)
function update(model: ModelKey, state: Visibility) {
const index = store.user.findIndex((x) => x.modelID === model.modelID && x.providerID === model.providerID)
if (index >= 0) {
setStore("user", index, (current) => ({ ...current, visibility: state }))
return
}
setStore("user", store.user.length, { ...model, visibility: state })
}
const visible = (model: ModelKey) => {
const key = modelKey(model)
const state = visibility().get(key)
if (state === "hide") return false
if (state === "show") return true
if (latestSet().has(key)) return true
const date = release().get(key)
if (!date?.isValid) return true
return false
}
const setVisibility = (model: ModelKey, state: boolean) => {
update(model, state ? "show" : "hide")
}
const push = (model: ModelKey) => {
const uniq = uniqueBy([model, ...store.recent], (x) => `${x.providerID}:${x.modelID}`)
if (uniq.length > RECENT_LIMIT) uniq.pop()
setStore("recent", uniq)
}
const variantKey = (model: ModelKey) => `${model.providerID}/${model.modelID}`
const getVariant = (model: ModelKey) => store.variant?.[variantKey(model)]
const setVariant = (model: ModelKey, value: string | undefined) => {
const key = variantKey(model)
if (!store.variant) {
setStore("variant", { [key]: value })
return
}
setStore("variant", key, value)
}
return {
ready,
list,
find,
visible,
setVisibility,
recent: {
list: createMemo(() => store.recent),
push,
},
variant: {
get: getVariant,
set: setVariant,
},
}
},
})
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