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Refactor show model/validation into show.go and simplify timeline internals

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This commit is contained in:
Ian Gulliver
2026-02-20 20:10:43 -07:00
parent 7d398082dd
commit 2c31d9505c
3 changed files with 194 additions and 103 deletions
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158
cmd/qrunproxy/timeline.go
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@@ -1,69 +1,34 @@
package main
import "fmt"
const cueTrackID = "_cue"
type Show struct {
Tracks []*Track `json:"tracks"`
Blocks []*Block `json:"blocks"`
Triggers []*Trigger `json:"triggers"`
}
type Track struct {
ID string `json:"id"`
Name string `json:"name"`
}
type Block struct {
ID string `json:"id"`
Type string `json:"type"`
Track string `json:"track,omitempty"`
Name string `json:"name"`
Loop bool `json:"loop,omitempty"`
}
type Trigger struct {
Source TriggerSource `json:"source"`
Targets []TriggerTarget `json:"targets"`
}
type TriggerSource struct {
Block string `json:"block"`
Signal string `json:"signal"`
}
type TriggerTarget struct {
Block string `json:"block"`
Hook string `json:"hook"`
}
type TimelineTrack struct {
*Track
Cells []*TimelineCell `json:"cells"`
}
type Timeline struct {
Tracks []*TimelineTrack `json:"tracks"`
Blocks map[string]*Block `json:"blocks"`
Tracks []*TimelineTrack `json:"tracks"`
Blocks map[string]*Block `json:"blocks"`
show *Show `json:"-"`
trackIdx map[string]*TimelineTrack `json:"-"`
constraints []constraint `json:"-"`
exclusives []exclusiveGroup `json:"-"`
show *Show `json:"-"`
trackIdx map[string]*TimelineTrack `json:"-"`
cellIdx map[cellKey]*TimelineCell `json:"-"`
constraints []constraint `json:"-"`
exclusives []exclusiveGroup `json:"-"`
}
type TimelineCell struct {
BlockID string `json:"block_id,omitempty"`
IsStart bool `json:"is_start,omitempty"`
IsEnd bool `json:"is_end,omitempty"`
Event string `json:"event,omitempty"`
IsTitle bool `json:"is_title,omitempty"`
IsSignal bool `json:"is_signal,omitempty"`
IsGap bool `json:"-"`
IsBreak bool `json:"-"`
row int `json:"-"`
track *TimelineTrack `json:"-"`
BlockID string `json:"block_id,omitempty"`
IsStart bool `json:"is_start,omitempty"`
IsEnd bool `json:"is_end,omitempty"`
Event string `json:"event,omitempty"`
IsTitle bool `json:"is_title,omitempty"`
IsSignal bool `json:"is_signal,omitempty"`
IsGap bool `json:"-"`
IsBreak bool `json:"-"`
row int `json:"-"`
track *TimelineTrack `json:"-"`
}
type constraint struct {
@@ -76,30 +41,13 @@ type exclusiveGroup struct {
members []*TimelineCell
}
func validateShow(show *Show) error {
startTargeted := map[string]bool{}
for _, trigger := range show.Triggers {
for _, target := range trigger.Targets {
if target.Hook == "START" {
startTargeted[target.Block] = true
}
}
}
for _, block := range show.Blocks {
if block.Type == "cue" {
continue
}
if !startTargeted[block.ID] {
return fmt.Errorf("block %q has no trigger for its START", block.ID)
}
}
return nil
type cellKey struct {
blockID string
event string
}
func BuildTimeline(show *Show) (Timeline, error) {
if err := validateShow(show); err != nil {
if err := show.validate(); err != nil {
return Timeline{}, err
}
@@ -107,6 +55,7 @@ func BuildTimeline(show *Show) (Timeline, error) {
show: show,
Blocks: map[string]*Block{},
trackIdx: map[string]*TimelineTrack{},
cellIdx: map[cellKey]*TimelineCell{},
}
cueTrack := &TimelineTrack{Track: &Track{ID: cueTrackID, Name: "Cue"}}
@@ -175,11 +124,8 @@ func getBlockCells(block *Block) []*TimelineCell {
}
func (tl *Timeline) findCell(blockID, event string) *TimelineCell {
track := tl.trackIdx[tl.Blocks[blockID].Track]
for _, c := range track.Cells {
if !c.IsGap && c.BlockID == blockID && c.Event == event {
return c
}
if c := tl.cellIdx[cellKey{blockID: blockID, event: event}]; c != nil {
return c
}
panic("cell not found: " + blockID + " " + event)
}
@@ -200,6 +146,12 @@ func (tl *Timeline) buildCells(endChains map[string]bool) {
cells = getBlockCells(block)
}
track.appendCells(cells...)
for _, c := range cells {
if c.Event == "" {
continue
}
tl.cellIdx[cellKey{blockID: c.BlockID, event: c.Event}] = c
}
if block.Type != "cue" && !endChains[block.ID] && lastOnTrack[block.Track] != block {
track.appendCells(&TimelineCell{IsGap: true, IsBreak: true})
}
@@ -291,7 +243,24 @@ func (tl *Timeline) enforceExclusives() bool {
return false
}
func (tl *Timeline) isAllGapRow(row int, except *TimelineTrack) bool {
func (tl *Timeline) shiftBreakDownOne(track *TimelineTrack, row int) {
below := track.Cells[row+1]
track.Cells[row].IsBreak = false
below.IsBreak = true
}
func (tl *Timeline) canShiftBreakDownOne(track *TimelineTrack, row int) bool {
if row+1 >= len(track.Cells) {
return false
}
below := track.Cells[row+1]
if !below.IsGap || below.IsBreak {
return false
}
return true
}
func (tl *Timeline) isAllRemovableGapRow(row int, except *TimelineTrack) bool {
for _, t := range tl.Tracks {
if t == except {
continue
@@ -299,7 +268,11 @@ func (tl *Timeline) isAllGapRow(row int, except *TimelineTrack) bool {
if row >= len(t.Cells) {
continue
}
if !t.Cells[row].IsGap {
c := t.Cells[row]
if !c.IsGap {
return false
}
if c.IsBreak && !tl.canShiftBreakDownOne(t, row) {
return false
}
}
@@ -308,7 +281,11 @@ func (tl *Timeline) isAllGapRow(row int, except *TimelineTrack) bool {
func (tl *Timeline) removeGapAt(track *TimelineTrack, index int) {
track.Cells = append(track.Cells[:index], track.Cells[index+1:]...)
for i := index; i < len(track.Cells); i++ {
tl.reindexRowsFrom(track, index)
}
func (tl *Timeline) reindexRowsFrom(track *TimelineTrack, start int) {
for i := start; i < len(track.Cells); i++ {
track.Cells[i].row = i
}
}
@@ -332,7 +309,7 @@ func (tl *Timeline) gapInsertionPoint(track *TimelineTrack, index int) int {
func (tl *Timeline) insertGap(track *TimelineTrack, beforeIndex int) {
beforeIndex = tl.gapInsertionPoint(track, beforeIndex)
if tl.isAllGapRow(beforeIndex, track) {
if tl.isAllRemovableGapRow(beforeIndex, track) {
for _, t := range tl.Tracks {
if t == track {
continue
@@ -340,7 +317,12 @@ func (tl *Timeline) insertGap(track *TimelineTrack, beforeIndex int) {
if beforeIndex >= len(t.Cells) {
continue
}
if t.Cells[beforeIndex].IsGap {
c := t.Cells[beforeIndex]
if c.IsBreak {
tl.shiftBreakDownOne(t, beforeIndex)
c = t.Cells[beforeIndex]
}
if c.IsGap && !c.IsBreak {
tl.removeGapAt(t, beforeIndex)
}
}
@@ -359,12 +341,6 @@ func (tl *Timeline) insertGap(track *TimelineTrack, beforeIndex int) {
break
}
newCells := make([]*TimelineCell, 0, len(track.Cells)+1)
newCells = append(newCells, track.Cells[:beforeIndex]...)
newCells = append(newCells, gap)
newCells = append(newCells, track.Cells[beforeIndex:]...)
track.Cells = newCells
for i := beforeIndex + 1; i < len(track.Cells); i++ {
track.Cells[i].row = i
}
track.Cells = append(track.Cells[:beforeIndex], append([]*TimelineCell{gap}, track.Cells[beforeIndex:]...)...)
tl.reindexRowsFrom(track, beforeIndex+1)
}