package handlers

import (
	"errors"
	"net/http"
	"strconv"

	"github.com/go-chi/chi/v5"

	"trade/web/internal/store"
)

func (d *Deps) ListScores(w http.ResponseWriter, r *http.Request) {
	q := r.URL.Query()
	limit := 0
	if s := q.Get("limit"); s != "" {
		if n, err := strconv.Atoi(s); err == nil {
			limit = n
		}
	}
	rows, err := d.Futures.ListScores(store.ScoreFilter{
		TsCode: q.Get("ts_code"),
		Start:  q.Get("start"),
		End:    q.Get("end"),
		Limit:  limit,
	})
	if err != nil {
		writeErr(w, http.StatusInternalServerError, err.Error())
		return
	}
	writeJSON(w, http.StatusOK, rows)
}

func (d *Deps) GetScore(w http.ResponseWriter, r *http.Request) {
	idStr := chi.URLParam(r, "id")
	id, err := strconv.ParseInt(idStr, 10, 64)
	if err != nil {
		writeErr(w, http.StatusBadRequest, "invalid id")
		return
	}
	row, err := d.Futures.GetScore(id)
	if err != nil {
		writeErr(w, http.StatusNotFound, err.Error())
		return
	}
	writeJSON(w, http.StatusOK, row)
}

func (d *Deps) ListContracts(w http.ResponseWriter, r *http.Request) {
	out, err := d.Futures.ListContracts()
	if err != nil {
		writeErr(w, http.StatusInternalServerError, err.Error())
		return
	}
	writeJSON(w, http.StatusOK, out)
}

func (d *Deps) ListCandles(w http.ResponseWriter, r *http.Request) {
	q := r.URL.Query()
	rows, err := d.Futures.ListCandles(q.Get("ts_code"), q.Get("start"), q.Get("end"))
	if err != nil {
		if errors.Is(err, store.ErrMissingTsCode) {
			writeErr(w, http.StatusBadRequest, err.Error())
			return
		}
		writeErr(w, http.StatusInternalServerError, err.Error())
		return
	}
	writeJSON(w, http.StatusOK, rows)
}