wehub-resource-sync
127 lines
3.0 KiB
Go
127 lines
3.0 KiB
Go
package luaplugin
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import lua "github.com/yuin/gopher-lua"
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// registerControlAPI adds cliamp.player control methods (next, prev, play_pause,
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// stop, set_volume, set_speed, seek, toggle_mono, set_eq_band) to the cliamp table.
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// These are only functional if the plugin declared permissions = {"control"}.
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func registerControlAPI(L *lua.LState, cliamp *lua.LTable, ctrl *ControlProvider, p *Plugin, logger *pluginLogger) {
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playerTbl := L.GetField(cliamp, "player")
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tbl, ok := playerTbl.(*lua.LTable)
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if !ok {
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return
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}
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warned := false
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guard := func(name string) bool {
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if !p.perms[PermControl] {
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if !warned {
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logger.log(p.Name, "warn", "%s requires permissions = {\"control\"} — further warnings suppressed", name)
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warned = true
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}
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return false
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}
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return true
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}
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L.SetField(tbl, "next", L.NewFunction(func(L *lua.LState) int {
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if guard("next") {
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ctrl.Next()
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}
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return 0
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}))
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L.SetField(tbl, "prev", L.NewFunction(func(L *lua.LState) int {
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if guard("prev") {
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ctrl.Prev()
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}
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return 0
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}))
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L.SetField(tbl, "play_pause", L.NewFunction(func(L *lua.LState) int {
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if guard("play_pause") {
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ctrl.TogglePause()
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}
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return 0
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}))
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L.SetField(tbl, "stop", L.NewFunction(func(L *lua.LState) int {
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if guard("stop") {
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ctrl.Stop()
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}
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return 0
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}))
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L.SetField(tbl, "set_volume", L.NewFunction(func(L *lua.LState) int {
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if !guard("set_volume") {
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return 0
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}
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db := float64(L.CheckNumber(1))
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ctrl.SetVolume(max(min(db, 6), -30))
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return 0
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}))
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L.SetField(tbl, "set_speed", L.NewFunction(func(L *lua.LState) int {
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if !guard("set_speed") {
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return 0
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}
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ratio := float64(L.CheckNumber(1))
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ctrl.SetSpeed(max(min(ratio, 2.0), 0.25))
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return 0
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}))
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L.SetField(tbl, "seek", L.NewFunction(func(L *lua.LState) int {
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if !guard("seek") {
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return 0
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}
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ctrl.Seek(float64(L.CheckNumber(1)))
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return 0
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}))
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L.SetField(tbl, "toggle_mono", L.NewFunction(func(L *lua.LState) int {
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if guard("toggle_mono") {
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ctrl.ToggleMono()
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}
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return 0
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}))
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// set_eq_preset("name") or set_eq_preset("name", {band1, band2, ..., band10})
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L.SetField(tbl, "set_eq_preset", L.NewFunction(func(L *lua.LState) int {
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if !guard("set_eq_preset") {
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return 0
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}
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name := L.CheckString(1)
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var bands *[10]float64
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if tbl := L.OptTable(2, nil); tbl != nil {
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b := [10]float64{}
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for i := range 10 {
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v := tbl.RawGetInt(i + 1)
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if v == lua.LNil {
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// A partial table would silently zero the unset bands;
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// require all 10 so the caller's intent is explicit.
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L.ArgError(2, "eq bands table must contain all 10 values")
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return 0
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}
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b[i] = max(min(float64(lua.LVAsNumber(v)), 12), -12)
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}
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bands = &b
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}
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ctrl.SetEQPreset(name, bands)
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return 0
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}))
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L.SetField(tbl, "set_eq_band", L.NewFunction(func(L *lua.LState) int {
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if !guard("set_eq_band") {
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return 0
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}
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band := L.CheckInt(1) - 1 // Lua 1-indexed → Go 0-indexed
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if band < 0 || band > 9 {
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L.ArgError(1, "band must be 1-10")
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return 0
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}
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db := float64(L.CheckNumber(2))
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ctrl.SetEQBand(band, max(min(db, 12), -12))
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return 0
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}))
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}
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