package handlers

import (
	"encoding/json"
	"net/http"
	"time"

	"github.com/gin-gonic/gin"
)

func (h *H) PutProgress(c *gin.Context) {
	b, ok := h.bookFromParam(c)
	if !ok {
		return
	}
	var req struct {
		Locator json.RawMessage `json:"locator"`
		Percent float64         `json:"percent"`
	}
	if e := c.ShouldBindJSON(&req); e != nil {
		err(c, http.StatusBadRequest, "bad_request", "json body required")
		return
	}
	if req.Percent < 0 || req.Percent > 1 {
		err(c, http.StatusBadRequest, "bad_request", "percent must be in [0,1]")
		return
	}
	if len(req.Locator) == 0 {
		req.Locator = []byte("{}")
	}
	if !json.Valid(req.Locator) {
		err(c, http.StatusBadRequest, "bad_request", "locator must be valid json")
		return
	}
	if e := h.st.UpsertProgress(c, uid(c), b.LibraryID, b.Path, req.Locator, req.Percent); e != nil {
		dbErr(c, e)
		return
	}
	c.Status(http.StatusNoContent)
}

func (h *H) ListProgress(c *gin.Context) {
	rows, e := h.st.ListProgress(c, uid(c))
	if e != nil {
		dbErr(c, e)
		return
	}
	out := make([]gin.H, 0, len(rows))
	for _, p := range rows {
		out = append(out, gin.H{
			"library_id": p.LibraryID, "library": p.LibraryName, "path": p.BookPath,
			"title": p.Title, "locator": json.RawMessage(p.Locator),
			"percent": p.Percent, "updated_at": p.UpdatedAt.Format(time.RFC3339),
		})
	}
	c.JSON(http.StatusOK, out)
}