package fjord

import "core:path/slashpath"
import http "http"
import rxt "radix_tree"

EndpointHandler :: struct($Error_Type: typeid) {
    method_handlers: map[http.Method]#type proc(
        request: ^http.Request,
    ) -> (
        http.Response,
        Error_Type,
    ),
    path_variables:  []string,
}

Router :: struct {
    radix_tree: rxt.RadixTree(EndpointHandler),
}

router_init :: proc(router: ^Router, allocator := context.allocator) {
    rxt.init(&router.radix_tree, allocator)
}

router_destroy :: proc(router : ^Router) {
    rxt.destroy(&router.radix_tree)
}

router_lookup :: proc(router: ^Router, key: string) -> (endpoint_handler: EndpointHandler, ok: bool) {
    return rxt.lookup(&router.radix_tree, key)
}

router_add_route :: proc(router: ^Router, key: []string, value: EndpointHandler) {
    joined_path := slashpath.join(key, context.allocator)
    defer delete(joined_path)

    rxt.insert(&router.radix_tree, joined_path[:], value)
}

router_remove_route :: proc(router: ^Router, key: string) -> (ok: bool){
    return rxt.remove(&router.radix_tree, key)
}